Bit-wise parallel algorithms for efficient software correlation applied to a GPS software receiver
Ledvina, B.M.; Psiaki, M.L.; Powell, S.P.; Kintner, P.M.
Wireless Communications, IEEE Transactions on
Volume 3, Issue 5, Sept. 2004 Page(s): 1469 - 1473
Digital Object Identifier 10.1109/TWC.2004.833467
Summary: A set of efficient algorithms for processing code-division multiple-access spread spectrum signals has been developed. They make use of bit-wise parallelism to process 32 samples simultaneously. These algorithms have been implemented in a real-time global positioning system software receiver. The receiver consists of a radio-frequency front end, a system of shift registers, a digital data acquisition card, and software that runs on a 1.73-GHz PC. The PC performs base-band mixing and pseudorandom noise code correlations in a manner that directly simulates a hardware digital correlator.
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