The present invention relates to production of a decoded signal (Aτ) based on in an incoming stream of data samples (d(k)) representing at least one downconverted digitized spread spectrum source signal. A number (NM) of the received data samples (d(k)) are divided into a first number (N) of data blocks,...http://www.google.de/patents/US20060274822?utm_source=gb-gplus-sharePatent US20060274822 - Software based spread spectrum signal processing