Tracking method and the acquisition of a global positioning system signal and matched filter circuit

摘要

PPROBLEM TO BE SOLVED: To provide a method and an apparatus for acquiring and tracking a global positioning system signals, with high acquisition speed and high sensitivity. PSOLUTION: A pseudo-random noise matching filter operation is performed on a sample of global positioning system signals and provides a current matched filter result. The current matched filter result is then accumulated with a prior matched filter result from a prior sample of global positioning system signals to produce an accumulated matched filter result. PCOPYRIGHT: (C)2010,JPO&INPIT