| 摘要 |
A first signal generator is arranged to generate a first signal. A ranging code generator is arranged for generating a ranging code. A mixer is capable of accepting the ranging code and the first signal and outputting a locally generated reference signal. After down-conversion and digitization of the received composite signal, the code correlator can correlate the digital received composite signal to the locally generated reference signal to decode at least a first portion of the received composite signal, while leaving a second portion of the received composite signal undecoded. A tracking loop signal processor can process one or more digital signals, of the locally generated reference signal with respect to the digital received composite signal to maximize correlation of the received composite signal to the locally generated reference signal. |
