Satellite signal processing method and satellite positioning apparatus

A satellite positioning apparatus, comprising:

• a radio navigation satellite system (RNSS) radio frequency channel, configured to receive an RNSS received signal;
• an RNSS baseband processor, coupled to the RNSS radio frequency channel, and configured to perform position, velocity, and time (PVT) computation on the RNSS received signal, to obtain PVT information;
• a radio determination satellite system (RDSS) baseband processor, configured to generate a carrier frequency offset value based on the PVT information, wherein the carrier frequency offset value is generated prior to transmitting an RDSS transmitted signal, the carrier frequency offset value comprising a Doppler frequency offset component derived from a movement velocity and a clock frequency offset estimation value, and
• further configured to correct a carrier frequency of the RDSS transmitted signal using the carrier frequency offset value generated prior to transmitting the RDSS transmitted signal, to obtain the RDSS transmitted signal;
• and
• an RDSS radio frequency channel, coupled to the RDSS baseband processor, and configured to send the RDSS transmitted signal, wherein the carrier frequency offset value defines a bounded carrier frequency range within which an RDSS central station acquires the RDSS transmitted signal.

A satellite signal processing method, comprising:

• receiving a radio navigation satellite system (RNSS) received signal;
• performing position, velocity, and time (PVT) computation on the RNSS received signal, to obtain PVT information;
• generating a carrier frequency offset value based on the PVT information, wherein the carrier frequency offset value is generated prior to receiving the RDSS received signal,
• determining the carrier frequency of a radio determination satellite system (RDSS) received signal based on a carrier frequency offset value,
• generating a code phase offset value based on a signal propagation delay derived from the PVT information, wherein the code phase offset value is generated prior to receiving the RDSS received signal, and
• determining a code phase of the RDSS received signal using the code phase offset value;
• and
• receiving the RDSS received signal using the determined code phase and the determined carrier frequency of the RDSS received signal, wherein the carrier frequency offset values defines a bounded carrier frequency range within which the RDSS received signal is acquired and the code phase offset value defines a bounded code phase range within which the RDSS received signal is acquired.