Unambiguous positioning method for satellite navigation system B1 wideband composite signal, and apparatus thereof

An unambiguous positioning apparatus for B1 wideband composite signals of a satellite navigation system, the apparatus comprising:

• a processor and a memory storing instructions executable by the processor;
• wherein the instructions, when executed by the processor, cause the processor to perform operations comprising:
• obtaining the B1 wideband composite signals of a plurality of satellites, wherein the B1 wideband composite signals comprise B1I signals and B1C signals;
• acquiring observed quantities of the B1I signals and the B1C signals;
• determining, based on the observed quantities of the B1I signals and the B1C signals, pseudo-range values and code pseudo-range values from the satellites to a receiver;
• determining, based on the pseudo-range values and the code pseudo-range values, ambiguity integer solutions of propagation delays of the B1 wideband composite signals;
• and
• correcting ambiguities of the propagation delays of the B1 wideband composite signals by using the ambiguity integer solutions, acquire unambiguous propagation delays of the B1 wideband composite signals, and perform unambiguous positioning on a location of the receiver.

A non-transitory storage medium, storing computer-executable instructions, wherein the instructions, when executed by one or more processors, cause the one or more processors to perform operations comprising:

• obtaining B1 wideband composite signals of a plurality of satellites, wherein the B 1 wideband composite signals comprise B 1I signals and B 1 C signals;
• acquiring observed quantities of the B1I signals and the B1C signals;
• determining, based on the observed quantities of the B1I signals and the BIC signals, pseudo-range values and code pseudo-range values from the satellites to a receiver;
• determining, based on the pseudo-range values and the code pseudo-range values, ambiguity integer solutions of propagation delays of the B1 wideband composite signals;
• and
• correcting ambiguities of the propagation delays of the B1 wideband composite signals by using the ambiguity integer solutions, acquiring unambiguous propagation delays of the B 1 wideband composite signals, and performing unambiguous positioning on a location of the receiver.