Global positioning system digital receiver

Abstract From the Canadian patent

Abstract of the Disclosure, A digital global positioning system (GPS) receiver for receiving a plurality of coded satellite signals. The plurality of satellite signals is transmitted by a corresponding plurality of satellites. Since these satellites are moving rapidly with respect to the receiver, Doppler shifting of the signals is exhibited. The signals are converted from analog to digital at intermediate frequency levels. The signals are then separated simultaneously into a plurality of digital signals corresponding to I and Q channel information for each transmitting satellite. A processor then converts these I and Q channel information signals to pseudo-range and broadcast data for …