Patent ID: 6750816
Filing Date: 2004-06-15
Classification: G01C,G01S

Abstract:
A receiver for the demodulation and processing of ranging signals and from orbiting satellites, the receiver comprising:A) multiple channels, each of which is configured to demodulate said ranging signals and recover satellite data from said signals; B) control means for a. assigning to each a channel a signal source whose signals are to be demodulated in that channel, and b. processing data received from the ranging signals; C) an RF generator that has the same frequency as the satellite carrier frequency, D) modulating means for modulating the output of said generator with unique pseudo random codes and modulating the codes with associated inertial data to produce pseudo ranging signals, and E) the receiver channels correlate the ranging and pseudo ranging signals received by the receiver with local replicas of the pseudo random codes used by the modulating means and the satellites with the control unit assigning said channels to respective signal sources by selecting the code replicas used by said channels.