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VeröffentlichungsnummerCN104320207 A
PublikationstypAnmeldung
AnmeldenummerCN 201410568000
Veröffentlichungsdatum28. Jan. 2015
Eingetragen17. Okt. 2014
Prioritätsdatum17. Okt. 2014
Auch veröffentlicht unterCN104320207B
Veröffentlichungsnummer201410568000.1, CN 104320207 A, CN 104320207A, CN 201410568000, CN-A-104320207, CN104320207 A, CN104320207A, CN201410568000, CN201410568000.1
Erfinder周钦山, 王峰, 张超, 韩翔
Antragsteller中国电子科技集团公司第四十一研究所
Zitat exportierenBiBTeX, EndNote, RefMan
Externe Links:  SIPO, Espacenet
Vector signal analysis device and method
CN 104320207 A
Zusammenfassung
The invention provides a vector signal analysis device. The vector signal analysis device is characterized in that an ADC (analog to digital converter) module performs A/D quantification on a received intermediate frequency signal, an I/Q (in-phase/quadrature) convertor performs I/Q conversion on a digital signal output by the ADC module so as to obtain base band I/Q data, an integer extraction module receives an I/Q signal output by the I/Q convertor, and extracts the I/Q signal after down conversion by integral multiples, a decimal fraction extraction module converts data velocity of I/Q data output by the integer extraction module into code element velocity which is an integral multiple of the data velocity, and further can perform decimal fraction multiple data velocity extraction conversion on an I/Q data file, and a vector demodulation analysis module performs subsequent vector demodulation analysis on I/Q data output by the decimal fraction extraction module. The vector signal analysis device can perform the flexible and complete vector demodulation analysis on digital modulation signals, uses the fixed velocity to perform A/D sampling, performs the I/Q conversion and integral multiple sampling rate conversion in a programmable device, and reduces design difficulty of A/D sampling of an existing vector signal analyzer and programmable hardware.
Ansprüche(10)  übersetzt aus folgender Sprache: Chinesisch
1.一种矢量信号分析装置,其特征在于,包括=ADC模块、I/Q变换器、整数抽取模块、小数抽取模块和矢量解调分析模块; ADC模块对接收到的中频信号进行A/D量化; I/Q变换器对ADC模块输出的数字信号进行I/Q变换得到基带I/Q数据; 整数抽取模块接收I/Q变换器输出的I/Q信号,对下变频后的I/Q信号进行整数倍抽取,整数抽取模块采用多级CIC滤波器和半带滤波器级联的方式,每级CIC滤波器和每级半带滤波器前均有选择器,CIC滤波器放在抽取级联的前端,半带滤波器在CIC滤波器的后端; 小数抽取模块将整数抽取模块输出的I/Q数据的数据速率转化为整数倍的码元速率,还可以对I/Q数据文件进行小数倍数据速率抽取变换; 矢量解调分析模块对上述小数抽取模块输出的I/Q数据进行后续的矢量解调分析。 A vector signal analysis apparatus comprising = ADC module, I / Q converter integer extraction module, fractional extraction module and vector demodulation module; intermediate frequency signal ADC module received an A / D quantification; I / Q converter for digital signal output by the ADC module I / Q baseband conversion I / Q data; integer extraction module receives I / Q converter output I / Q signal, the down-converted I / Q signal is an integer multiple extraction, integer extraction module multistage CIC filter and half-band filter cascade, before each stage CIC filter and half-band filter of each stage are selectors, CIC decimation filter on stage linking the front, half-band filter at the rear end of CIC filter; decimal integer extraction module to extract module output I / Q data rate data is converted to an integer multiple of the symbol rate, but also to I / Q data file small multiple of the data rate decimation transformation; vector demodulation module above fractional extraction module output I / Q demodulation vector data for subsequent analysis.
2.如权利要求1所述的一种矢量信号分析装置,其特征在于,所述ADC模块采用固定采样率,采样率取值为1MHz的整数倍。 2. A vector signal analysis apparatus according to claim 1, characterized in that said module is fixed ADC sampling rate, the sampling rate value is an integer multiple of 1MHz.
3.如权利要求1所述的一种矢量信号分析装置,其特征在于,所述I/Q变换器接收所述ADC模块输出的中频信号,经两个相乘器所构成的混频器后,将输入的数字信号和数字本振所产生的正交正弦信号相乘,相乘结果为基带I/Q数据。 3. A vector signal analysis apparatus according to claim 1, characterized in that said I / Q converter ADC module receiving the intermediate frequency signal output by mixer is composed of two multiplied after , orthogonal sinusoidal signal and the input digital signal generated by a digital local oscillator multiplied result by multiplying a baseband I / Q data.
4.如权利要求1所述的一种矢量信号分析装置,其特征在于,所述整数抽取模块的抽取因子以1、2、5、10固定档位步进。 4. A vector signal analysis apparatus according to claim 1, characterized in that said integer decimation factor of decimation module to 1,2,5,10 fixed gear stepping.
5.如权利要求4所述的一种矢量信号分析装置,其特征在于,所述CIC滤波器采用5级级联的方式,半带滤波器采用3级级联的方式。 5. A vector signal analysis apparatus according to claim 4, characterized in that said CIC filter using five cascaded manner, using 3 half-band filter cascade.
6.如权利要求1所述的一种矢量信号分析装置,其特征在于,小数抽取模块采用sine内插滤波进行小数倍抽取,得到整数倍码元速率的I/Q数据。 A vector signal analysis apparatus as claimed in one of the preceding claims, characterized in that the fractional sine interpolation decimation module using the filter for fractional extraction, to obtain an integral multiple of the symbol rate of the I / Q data.
7.如权利要求1所述的一种矢量信号分析装置,其特征在于,矢量解调分析模块的信号分析流程包括匹配滤波、矢量解调以及调制质量分析。 7. A vector signal analysis apparatus according to claim 1, characterized in that the signal analysis process vector demodulation module include matched filtering, demodulation and modulation quality vector analysis.
8.一种矢量信号分析方法,其特征在于,包括以下步骤: 步骤(a),对接收到的中频信号进行A/D量化; 步骤(b),对A/D量化后的数字信号进行I/Q变换,将速率较高的数字中频信号下变频为基带I/Q数据; 步骤(C),对下变频后的I/Q信号进行整数倍抽取,整数抽取采用多级CIC滤波器和半带滤波器级联的方式,每级CIC滤波器和每级半带滤波器前均有选择器,CIC滤波器放在抽取级联的前端,半带滤波器在CIC滤波器的后端; 步骤(d),将整数倍抽取后的I/Q数据的数据速率转化为整数倍的码元速率,还可以对I/Q数据文件进行小数倍数据速率抽取变换; 步骤(e),对步骤(d)处理后的I/Q数据进行矢量解调分析。 A vector signal analysis method, comprising the following steps: Step (a), the received IF signal A / D quantization; step (b), the digital signal A / D quantized I / Q conversion, the frequency baseband I at a higher rate of digital IF signal / Q data; step (C), on the down-converted I / Q signal is an integer multiple extraction, multi-stage integer decimation CIC filter and half band filter cascaded manner, before each stage CIC filter and half-band filter of each stage are selectors, CIC decimation filter on the front end of the cascade, half-band filter backend CIC filter; step (d), after extracting the integer multiple I / Q data rate of the data is converted to an integer multiple of the symbol rate, but also on the I / Q data file converting fractional data extraction rate; step (e), step (d) after the treatment I / Q demodulation vector data.
9.如权利要求8所述的一种矢量信号分析方法,其特征在于,步骤(b)中,I/Q变换的步骤具体包括:A/D量化后的数字信号经两个相乘器所构成的混频器混频后,将输入的数字信号和数字本振所产生的正交正弦信号相乘,相乘结果为基带I/Q数据。 9. A vector signal analysis method according to claim 8, wherein the step (b), the step of I / Q conversion include: a digital signal A / D quantized by the two multiplying devices After mixing the mixer configuration, orthogonal sinusoidal signal and the input digital signal generated by the digital local oscillator multiplied result by multiplying a baseband I / Q data.
10.如权利要求9所述的一种矢量信号分析方法,其特征在于,矢量解调分析包括匹配滤波、矢量解调以及调制质量分析。 10. A vector signal analysis method according to claim 9, characterized in that the demodulation vectors include matched filtering, demodulation and modulation quality vector analysis.
Beschreibung  übersetzt aus folgender Sprache: Chinesisch
一种矢量信号分析装置及方法 A vector signal analysis apparatus and method

技术领域 Technical Field

[0001] 本发明涉及测试技术领域,特别涉及一种矢量信号分析装置,还涉及一种矢量信号分析方法。 [0001] The present invention relates to the technical field testing, in particular to a vector signal analysis means further relates to a vector signal analysis method.

背景技术 Background technique

[0002] 数字调制信号具有信息容量大、抗干扰和保密性好等优点,在卫星通信、广播电视、通信对抗等通信系统中被广泛使用。 [0002] The digital modulation signal has information capacity, immunity and confidentiality and good benefits, is widely used in satellite communications, radio, television, communication against other communications systems. 对数字调制信号的码元信息和调制质量进行精确衡量是数字通信系统应用的重要前提,矢量信号分析仪可实现码元恢复和调制质量测量,以及功率、频率等其它参数的测试,为数字通信系统提供测试保障。 Information on the symbols and modulation quality of digitally modulated signals is an important prerequisite for accurately measure digital communications system applications, vector signal analyzer enables symbol recovery and test modulation quality measurements, as well as power, frequency and other parameters for digital communications The system provides test support.

[0003] 在完成信号的变频处理后,矢量信号分析仪需要可编程硬件设备和驻机软件配合完成多种调制格式以及不同码元速率数字调制信号的矢量解调分析。 [0003] After completing the conversion process signal vector signal analyzer need in programmable hardware devices and software with the completion of various vector modulation formats and different symbol rate of the digital modulation signal demodulation analysis. 现有的矢量信号分析仪在可编程硬件设备中完成1/0变换、小数倍采样率变换、甚至矢量解调等过程,编程设计复杂度高;并且驻机软件无法进行非整数倍码元速率1/0数据文件的回放分析,软件灵活性和通用性差。 Existing vector signal analyzer completed in programmable hardware devices 1/0 transform fractional sampling rate conversion, even vector demodulation process, programmed high complexity; and in computer software can not be a non-integer multiple of the symbol The playback rate 1/0 data file analysis, software flexibility and versatility poor.

[0004] 如图1所示,现有的矢量信号分析实现方法一般有两种: [0004] As shown in Figure 1, a conventional vector signal analysis methods are generally realized in two ways:

[0005] 一是采用可变高采样率进行八/0转换,采样速率为码元速率的整数倍,经过1/0变换、整数倍抽取滤波后,进行矢量解调分析。 [0005] First, using a variable high sampling rate eight / 0 conversion, sampling rate is an integer multiple of the symbol rate, after 1/0 transform, an integer multiple decimation filter, the vector demodulation analysis. 该方法要求采样时钟是码元速率的整数倍,对采样时钟发生器的精度及范围要求很高,实现比较困难; The method requires sampling clock is an integer multiple of the symbol rate, the sampling clock generator demanding accuracy and range, is more difficult to achieve;

[0006] 二是采用固定采样率进行八/0变换,在可编程器件中进行1/0变换、小数倍抽取处理得到整数倍码元速率的1/0数据,在后续硬件或软件模块中进行矢量解调分析。 [0006] Second, the fixed sampling rate of eight / 0 conversion, carried out in a programmable device 1/0 conversion, fractional extraction process to obtain an integral multiple of the data symbol rate of 1/0, in a subsequent hardware or software modules vector demodulation analysis.

[0007] 上述第一种实现方法中,矢量信号分析仪驻机软件获得的数据是矢量解调后的结果,原始采样数据的时频域信息被丢弃,数据信息利用率不高,导致结果分析角度不够全面;此外,采用可变高采样率八/0实现起来非常困难。 [0007] the first one implementation, the data in the vector signal analyzer software is the result of a vector obtained demodulated data when the original sampling frequency domain information is discarded, data utilization is not high, resulting in Analysis angle is not comprehensive enough; in addition, using a variable high sampling rate eight / 0 very difficult to achieve.

[0008] 第二种实现方法中,小数倍抽取处理在可编程器件中,编程复杂度高;并且驻机软件缺少小数倍采样率变换功能,仅能实现整数倍采样率1/0数据的解调分析,无法回放分析其它系统保存的非整数倍码元速率的1/0数据,软件兼容性差、使用局限性大。 [0008] The second implementation method, fractional extraction process in a programmable device, the programming complexity is high; and in computer software lacks fractional sample rate conversion function, can only achieve an integer multiple data sampling rate 1/0 demodulation analysis, can not play back the 1/0 data stored in other systems of non-integer multiple of the symbol rate, and software compatibility is poor, use big limitations.

发明内容 DISCLOSURE

[0009] 为解决现有的矢量信号分析实现方法的上述缺点,本发明提出一种矢量信号分析装置及方法。 [0009] In order to solve the above drawbacks of existing vector signal analysis method of realization, the present invention provides a vector signal analysis apparatus and method.

[0010] 本发明的技术方案是这样实现的: [0010] aspect of the present invention is implemented as follows:

[0011] 一种矢量信号分析装置,包括:仙模块、1/0变换器、整数抽取模块、小数抽取模块和矢量解调分析模块; [0011] A vector signal analysis apparatus comprising: Sin module, 1/0 converter, integer extraction module, fractional extraction module and vector demodulation module;

[0012] ^00模块对接收到的中频信号进行八/0量化; [0012] ^ IF signal 00 modules were received eight / 0 to quantify;

[0013] 1/0变换器对八IX:模块输出的数字信号进行1/0变换得到基带1/0数据; [0013] 1/0 converter for eight IX: digital signal module output by the baseband 1/0 1/0 transform data;

[0014] 整数抽取模块接收1/0变换器输出的1/0信号,对下变频后的1/0信号进行整数倍抽取,整数抽取模块采用多级¢:1(:滤波器和半带滤波器级联的方式,每级¢:1(:滤波器和每级半带滤波器前均有选择器,¢:1(:滤波器放在抽取级联的前端,半带滤波器在¢:1(:滤波器的后端; [0014] integer decimation module receives 1/0 1/0 converter output signal, 1/0 signal downconverted be an integer multiple of extraction, integer extraction module using multi-level ¢: 1 (: half-band filter and filter cascade way, each level ¢: 1 (: before half-band filter and filter every level are selectors, ¢: 1 (: decimation filter on the front end of the cascade, half-band filter ¢: 1 (: filter rear;

[0015] 小数抽取模块将整数抽取模块输出的1/0数据的数据速率转化为整数倍的码元速率,还可以对1/0数据文件进行小数倍数据速率抽取变换; Data rate [0015] extraction module decimal integer data extraction module output 1/0 converted to an integer multiple of the symbol rate, data files can also be fractional 1/0 data rate decimation transformation;

[0016] 矢量解调分析模块对上述小数抽取模块输出的1/0数据进行后续的矢量解调分析。 [0016] vector demodulation module above 1/0 fractional extraction module output vector data for subsequent demodulation.

[0017] 可选地,所述八IX:模块采用固定采样率,采样率取值为10册12的整数倍。 [0017] Alternatively, the eight IX: module fixed sampling rate, sample rate value is an integer multiple of 10 (12).

[0018] 可选地,所述1/0变换器接收所述八IX:模块输出的中频信号,经两个相乘器所构成的混频器后,将输入的数字信号和数字本振所产生的正交正弦信号相乘,相乘结果为基带1/0数据。 [0018] Alternatively, the 1/0 converter receives the eight IX: the IF signal module output, the mixer is composed of two multiplied after the input of the digital signal and the digital local oscillator quadrature sinusoidal signal generated by multiplying the result by multiplying baseband 1/0 data.

[0019] 可选地,所述整数抽取模块的抽取因子以1、2、5、10固定档位步进。 [0019] Alternatively, the extraction module integer decimation factor to 1,2,5,10 fixed gear steps.

[0020] 可选地,所述(:1(:滤波器采用5级级联的方式,半带滤波器采用3级级联的方式。 [0020] Alternatively, the (: 1 (: a filter using five cascaded manner, using 3 half-band filter cascade.

[0021] 可选地,小数抽取模块采用81%内插滤波进行小数倍抽取,得到整数倍码元速率的1/0数据。 [0021] Alternatively, the fractional extraction module within 81% of the interpolation filter for fractional extraction, data obtained 1/0 of an integer multiple of the symbol rate.

[0022] 可选地,矢量解调分析模块的信号分析流程包括匹配滤波、矢量解调以及调制质量分析。 [0022] Alternatively, the signal analysis process vector demodulation module includes matched filtering, demodulation and modulation quality vector analysis.

[0023] 本发明还提供了一种矢量信号分析方法,包括以下步骤: [0023] The present invention also provides a vector signal analysis method, comprising the steps of:

[0024] 步骤(幻,对接收到的中频信号进行八/0量化; [0024] Step (magic, the received intermediate frequency signal eight / 0 quantization;

[0025] 步骤化),对八/0量化后的数字信号进行1/0变换,将速率较高的数字中频信号下变频为基带1/0数据; [0025] step of), digital signal eight / 0 1/0 quantized transform higher rate under the digital IF signal to a baseband frequency 1/0 data;

[0026] 步骤化),对下变频后的1/0信号进行整数倍抽取,整数抽取采用多级(:1(:滤波器和半带滤波器级联的方式,每级¢:1(:滤波器和每级半带滤波器前均有选择器,¢:1(:滤波器放在抽取级联的前端,半带滤波器在¢1(:滤波器的后端; [0026] The step of) for 1/0 signal downconverted be an integer multiple of extraction, multistage decimation integer (: 1 (: a filter and a half band filter cascade mode, each level ¢: 1 (: half-band filter and filter before each level are selectors, ¢: 1 (: decimation filter on the front end of the cascade, half belt at ¢ 1 (Filter: the rear end of the filter;

[0027] 步骤((1),将整数倍抽取后的1/0数据的数据速率转化为整数倍的码元速率,还可以对1/0数据文件进行小数倍数据速率抽取变换; [0027] Step ((1), the data rate is an integer multiple of the 1/0 decimation data after conversion is an integer multiple of the symbol rate, the data files can also be a small multiple of 1/0 the data extraction rate conversion;

[0028] 步骤(6),对步骤((1)处理后的1/0数据进行矢量解调分析。 [0028] Step (6), step ((1) 1/0 processed vector data demodulation.

[0029] 可选地,步骤㈦中,1/0变换的步骤具体包括4/0量化后的数字信号经两个相乘器所构成的混频器混频后,将输入的数字信号和数字本振所产生的正交正弦信号相乘,相乘结果为基带1/0数据。 [0029] Alternatively, the step (vii), the 1/0 Step converted specifically include 4/0 quantized digital signal after the mixer is composed of two multiplying mixing, the input digital signal and digital LO quadrature sinusoidal signal generated by multiplying the result by multiplying baseband 1/0 data.

[0030] 可选地,矢量解调分析包括匹配滤波、矢量解调以及调制质量分析。 [0030] Alternatively, the vector includes a matched filter demodulation analysis, vector demodulation and modulation quality analysis.

[0031] 本发明的有益效果是: [0031] The beneficial effects of the present invention are:

[0032] (1)可对数字调制信号进行灵活、全面的矢量解调分析; [0032] (1) of the digitally modulated signals for flexible and comprehensive vector demodulation;

[0033] (2)采用固定速率八/0采样,在可编程器件中进行1/0变换和整数倍采样率变换,降低现有矢量信号分析仪八/0采样和可编程硬件的设计难度; [0033] (2) a fixed rate of eight / 0 sampling, conducted an integer multiple of 1/0 conversion and sample rate conversion in a programmable device, reduce existing vector signal analyzer eight / 0 sampling and programmable hardware design difficulty;

[0034] (3)在矢量信号分析仪驻机软件中进行小数倍采样率变换以及矢量解调,支持非整数倍码元速率1/0文件的矢量回放分析,增强了矢量分析能力和分析结果的全面性。 [0034] (3) fractional sample rate conversion and vector demodulation, support vector analysis of non-integer multiple playback symbol rate 1/0 files, enhanced vector analysis and analysis of the vector signal analyzer software in machine The results of comprehensiveness.

附图说明 Brief Description

[0035] 为了更清楚地说明本发明实施例或现有技术中的技术方案,下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍,显而易见地,下面描述中的附图仅仅是本发明的一些实施例,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他的附图。 [0035] In order to more clearly illustrate the embodiments or the prior art technical solutions embodiment of the present invention, it will implement the following figures for the cases described in the prior art or require the use of a simple introduction, Obviously, in the following description The drawings are only some embodiments of the present invention, those of ordinary skill in terms of creative effort without precondition, you can also obtain other drawings based on these drawings.

[0036] 图1为现有的矢量信号分析方法实现原理图; [0036] FIG. 1 is a conventional vector signal analysis method to implement the schematic;

[0037] 图2为本发明的矢量信号分析装置的原理图; Vector signal analysis apparatus Schematic [0037] Figure 2 of the present invention;

[0038] 图3为本发明的1/0变换器的原理框图; [0038] FIG. 3 block diagram of the present invention 1/0 converter;

[0039] 图4为本发明的整数抽取模块的原理框图; Integer [0039] Figure 4 is a block diagram of the invention extraction module;

[0040] 图5为本发明的小数抽取模块的工作流程图。 Fractional extraction module operation flowchart [0040] FIG. 5 of the present invention.

具体实施方式 DETAILED DESCRIPTION

[0041] 下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。 [0041] The present invention will now be combined with the implementation of the drawings, were a clear example of the technical solutions of the present invention, a complete description of, obviously, the described embodiments are only part of the embodiments of the present invention, but not all embodiments example. 基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。 Based on the embodiments of the present invention, all other embodiments by those of ordinary skill in the creative work did not make the premise obtained are within the scope of protection of the present invention.

[0042] 现有矢量信号分析仪器中采样率变换和矢量解调分析靠近处理流程前端导致可编程器件逻辑设计复杂、驻机软件结果分析不够全面以及使用局限性大,本发明给出了一种矢量信号分析装置及方法,超外差式矢量信号分析仪将被测调制信号通过滤波混频后变频到中频,中频信号经过滤波放大后进行数字化,高速八IX:量化后的中频信号再经过1/0变换和抽取滤波处理,将中频信号变成零中频的数字1/0复信号,然后基于这些1/0数据进行矢量解调分析。 [0042] The conventional vector signal analysis instrument sample rate conversion and vector demodulation processing flow near the tip lead to the design of complex programmable logic devices, in software and the use of the results of the analysis is not comprehensive enough big limitation, the present invention provides a method vector signal analysis apparatus and method superheterodyne vector signal analyzer will be measured by the modulated signal to an intermediate frequency mixing filtered, filtered and amplified IF signal after digitization, high-speed eight IX: IF signal quantized and then after 1 / 0 conversion and decimation filtering process, the intermediate frequency signal into a digital zero-IF complex signal 1/0, 1/0 and then based on these data vector demodulation.

[0043] 下面结合附图,对本发明的矢量信号分析装置及方法进行详细说明。 [0043] below with the drawings, vector signal analysis apparatus and method of the present invention will be described in detail.

[0044] 如图2所示,首先,八IX:模块采用固定采样率对接收到的中频信号进行八/!)量化,本发明采样率取值为10册12的整数倍,例如100册12、400册12、500册12等。 [0044] 2, the first eight IX: module uses a fixed intermediate frequency signal sampling rate the received eight /) to quantify the value of the sampling rate of the present invention is an integer multiple of 12, 10, 12 for example, 100! , 400 12 12,500 books and the like. 采样率决定了信号的最大可分析带宽,采用固定采样率降低了八/0采样的实现难度。 Sampling rate determines the maximum bandwidth of the signal can be analyzed using a fixed sample rate decreased eight / 0 sampling difficult to achieve.

[0045] 然后,在可编程硬件设备中的1/0变换器对八IX:模块输出的数字信号进行1/0变换得到基带1/0数据。 [0045] Then, in programmable hardware devices 1/0 converter for eight IX: digital signal module output by the baseband 1/0 1/0 transform data.

[0046] 1/0变换的基本功能是将速率较高的数字中频信号下变频为数字基带信号,图3是本发明1/0变换器的实现原理图。 Basic functions [0046] 1/0 conversion rate is higher at the digital IF signal is converted to a digital baseband signal, FIG. 3 is a converter of the present invention to achieve 1/0 schematic. 图3中,高速八IX:模块输出的中频信号送入1/0变换器;经两个相乘器所构成的混频器后,将输入的数字信号和数字本振所产生的正交正弦信号相乘,相乘结果为1/0两路信号。 3, the high-speed eight IX: the IF signal converter module output into 1/0; quadrature sine after the mixer is composed of two multiplying the input digital signal and the digital local oscillator generated signals are multiplied, the result is multiplied by two signals 1/0.

[0047] 再然后,1/0信号送入整数抽取模块,完成对下变频后的1/0信号的整数倍抽取。 [0047] and then, 1/0 signals into integer extraction module to complete the entire 1/0 signal downconverted multiple extraction. 本发明的矢量信号分析装置中抽取因子以1、2、5、10固定档位步进,抽取后的数据率默认为不小于2倍码元速率,考虑到1/0数据后续应用的灵活性以及与其它系统的兼容性,抽取后的数据率可在1〜20倍码元速率范围内设置。 Vector signal analysis apparatus of the present invention, the decimation factor to 1,2,5,10 fixed gear step, data extraction rate after default is not less than 2 times the symbol rate, taking into account the subsequent use of the flexibility of 1/0 data and compatibility with other systems, the data rate can be set after extraction within 1~20 times the symbol rate range. 假设~为每符号点数,(淋码元速率)向上取整为1、2、5、10得到抽取后的数据率,则抽取比例为0/0采样率)/(抽取后的数据率),从而得到小数倍码元速率的1/0数据。 Assume - for each symbol points (leaching symbol rate) rounded up to the data rate 1,2,5,10 get decimated, the decimation ratio of 0/0 sampling rate) / (data rate after decimation), whereby 1/0 fractional data symbol rates. 以3.84腿2码元速率的信号为例,在100腿2的八/0采样时钟的情况下,设置每符号点数为2,则2^3.84册12 = 7.681^,向上取整得到抽取后的数据率为10册12,抽取比计算公式为100册12/10册12 = 10。 Leg 2 yards to 3.84 yuan rate signals, for example, in the case of 100 eight-leg 2/0 sample clock, set the number of points per symbol is 2, then 2 ^ 12 = 7.681 ^ 3.84, rounded up to get decimated data rate of 10 12, decimation ratio is calculated as 100 12/10 12 = 10 books.

[0048] 本发明的整数抽取模块采用多级(:1(:滤波器和半带滤波器级联的方式实现。由于¢:1(:滤波器可以省略乘法器和系数存储器,运算效率较高,所以将其放在抽取级联的前端,实现高采样率数据的抽取。半带滤波器频率特性优于¢:1(:滤波器,用在¢:1(:滤波器的后端。本发明中(:1(:滤波器实现1〜1000倍抽取比,采用5级级联的方式实现,可以保证67(18的带外抑制,满足阻带衰减要求。半带滤波器采用3级级联的方式,实现1〜8倍的抽取比。¢:1(:滤波器和每级半带滤波器前均有选择器,选择是否进行抽取滤波。抽取比选取原则是当实现2、4、8倍抽取式选择半带滤波器,其它情况下由半带滤波器和(:1(:滤波器组合实现抽取。以10倍抽取比为例,将由(:1(:滤波器实现5倍抽取滤波,半带滤波器实现2倍抽取滤波。 [0048] integer extraction module of the present invention employs a multi-stage (: 1 (: a filter and a half band filter cascade way to achieve due ¢:. 1 (: filter coefficient multiplier and memory can be omitted, higher operational efficiency , so put it in the front extraction cascade to achieve high data sampling rate decimation half-band filter frequency characteristics superior ¢:. 1 (: filters, used in ¢: 1 (:. post-filter of the present invention (: 1 (: 1~1000 times decimation filter implementation than using five cascaded ways, can guarantee with 67 (18 rejection, stop-band attenuation to meet the requirements of half-band filter uses three levels. Union, to achieve 1 ~ 8 times decimation ratio ¢:. 1 (:. before half-band filter and the filter of each stage has a selector to choose whether decimation filter decimation ratio selected to achieve 2,4 principle is that when, 8x removable choose half-band filter, in other cases by a half-band filter and (: decimation filter 5x: 1 (: decimation filter combination thereof decimation ratio of 10 times, for example, by (: 1 ( filtering, half-band filter is implemented twice decimation filter.

[0049] 接下来,小数抽取模块将上述整数抽取模块输出的1〜20小数倍码元速率的1/0数据转化为整数倍的码元速率,还可以对1/0数据文件进行小数倍数据速率抽取变换。 1/0 Data [0049] Next, the fractional extraction module extracts the integer multiple of the module output of 1~20 small symbol rate is converted to an integer multiple of the symbol rate, data files can also be fractional 1/0 extracting transform data rate. 本发明采用81%内插滤波进行小数倍抽取,得到整数倍码元速率的1/0数据,整数可以设置为常用的1、2、4、8、16等值。 The invention uses interpolation filtering small multiples of 81% extraction, to give an integer multiple of the symbol rate 1/0 data, integer can be set to 1,2,4,8,16 common equivalent. 在数据率改变时,要去掉高频分量,就需要将信号通过一个低通滤波器,理想低通滤波器在时域的表现形式就是函数,因此只要实现输入数据与81!10函数的卷积即可实现采样速率的变换。 When the data rate change, you want to get rid of high frequency components, you need to signal through a low pass filter, ideal low-pass filter in the time domain is the manifestation function, so long as the realization of input data and 81! 10 function convolution sample rate conversion can be realized. 在实现过程中,如图5所示,需要对81%函数进行截短并加窗锐化,为兼顾小数倍抽取的速度与精度两种不同应用情况,分别使用8个和40个点的函数,加窗进行过渡带锐化,通过控制开关来实现速度和精度的选择优化。 In the implementation process, shown in Figure 5, the need for 81% truncation and windowing functions sharpening, fractional extraction of both speed and accuracy are two different applications, each using eight and 40 points functions, windowing be transitional sharpening, achieved by controlling the switch select the optimal speed and precision.

[0050] 1/0数据不仅包含了信号的幅度信息,还包含了矢量分析必须的相位信息,在信号分析仪中具有非常广泛的应用,后端信号分析几乎都是基于1/0数据进行的,当今主流的信号分析仪都提供1/0数据文件保存功能,一些信号仿真软件如嫩11^8等也可以便捷的进行1/0文件输出,因此对1/0数据文件进行矢量回放分析具有非常重要的现实意义。 [0050] 1/0 data contains not only the magnitude of the information signal, also contains information necessary vector analysis phase, with a very wide range of applications in signal analyzers, signal analysis are almost always based on the backend data of 1/0 , today's mainstream signal analyzer provides 1/0 data file storage function, some of the signal simulation software, such as 11 ^ 8 tender may also be convenient file output 1/0, 1/0 and therefore the vector data file playback analysis has a very important practical significance. 由于本发明的小数抽取模块中具有小数倍抽取功能,只要将文件中的数据按照特定格式读入内存即可进行矢量解调分析,极大提高了矢量分析功能的通用性。 Because fractional extraction module of the present invention has a fractional extraction function, as long as the data file is read into memory can be carried out in accordance with a specific format vector demodulation analysis, greatly increasing the versatility of the vector analysis capabilities.

[0051] 最后,矢量解调分析模块对上述小数抽取模块输出的整数倍码元速率的1/0数据进行后续的矢量解调分析,包括匹配滤波、矢量解调以及调制质量分析等一系列信号分析流程。 1/0 Data [0051] Finally, the vector demodulation analysis module extraction module output above decimal integer multiple of the symbol rate for subsequent demodulation vector analysis, including a series of signal matched filtering, demodulation and modulation quality vector analysis analysis process.

[0052] 本发明的矢量信号分析装置及方法,可对数字调制信号进行灵活、全面的矢量解调分析;采用固定速率八/0采样,在可编程器件中进行1/0变换和整数倍采样率变换,降低现有矢量信号分析仪八/0采样和可编程硬件的设计难度;在矢量信号分析仪驻机软件中进行小数倍采样率变换以及矢量解调,支持非整数倍码元速率1/0文件的矢量回放分析,增强了矢量分析能力和分析结果的全面性。 [0052] vector signal analysis apparatus and method of the present invention, the digital modulation signal is flexible and comprehensive vector demodulation; fixed rate of eight / 0 sampling, carried out 1/0 transform an integer multiple programmable devices and sampling rate conversion, reducing the existing eight vector signal analyzer / 0 sampling and programmable hardware design difficulty; small multiple of the sampling rate conversion and vector demodulation, support for non-integer multiple of the symbol rate in vector signal analyzer software in machine Vector file playback 1/0 analysis, enhanced vector analysis and comprehensive analysis of the results.

[0053] 以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内,所作的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。 [0053] The above-described preferred embodiments of the present invention, it is not intended to limit the present invention, any modifications within the spirit and principles of the present invention, made, equivalent replacement, or improvement should be included in the The scope of the present invention.

Patentzitate
Zitiertes PatentEingetragen Veröffentlichungsdatum Antragsteller Titel
CN1866801A *29. März 200622. Nov. 2006华为技术有限公司Apparatus and method for measuring wireless base station channel delay
CN101124798A *23. Febr. 200613. Febr. 2008飞思卡尔半导体公司AGC with integrated wideband interferer detection
CN103117972A *28. Jan. 201322. Mai 2013中国电子科技集团公司第四十一研究所Method and device for analyzing vector signals
CN103196547A *11. März 201310. Juli 2013安徽新力电业科技咨询有限责任公司Method achieving rotary machinery vibration signal synchronization order ratio tracing analysis
CN201708797U *17. Mai 201012. Jan. 2011福建先创通信有限公司Digital frequency-selecting device for multi-carrier mobile communication relay equipment
US5732333 *14. Febr. 199624. März 1998Glenayre Electronics, Inc.Linear transmitter using predistortion
Klassifizierungen
Internationale KlassifikationH04B17/30
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DatumCodeEreignisBeschreibung
28. Jan. 2015C06Publication
25. Febr. 2015C10Entry into substantive examination
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