A GPS receiver having channel clusters each having a memory-enhanced channel and several standard tracking channels. The memory-enhanced channel includes a signal memory for accumulating carrier frequency leveled signal samples over several epochs into supersamples for an epoch. During an acquisition...http://www.google.de/patents/US7061972?utm_source=gb-gplus-sharePatent US7061972 - GPS receiver having dynamic correlator allocation between a memory-enhanced channel for acquisition and standard channels for tracking