Ranging code acquisition method and device, electronic equipment and storage medium

Abstract

The invention discloses a ranging code acquisition method, which comprises the following steps: when a request for acquiring a ranging code of a target satellite is received, acquiring a G1 code of the target satellite from a G1 code storage space; querying the initial position of a G2 code of the target satellite from G2 phase storage; querying the G2 code of the target satellite according to the initial position of the G2 code of the target satellite and the code length of the target satellite in the G2 code storage space; wherein G1 codes of all satellites in the same satellite system are the same, and all the satellites in the same satellite system share the G2 code storage space, and G2 codes of all the satellites are determined according to the respective corresponding initial positions; and performing XOR operation on the G1 code and the G2 code to generate a ranging code of the target satellite. According to the method, the storage space occupied by the ranging code can be effectively reduced, the occupation of a physical memory is reduced, and the circuit area is saved. The invention also provides a ranging code acquisition device, electronic equipment and a computer readable storage medium, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of satellite ranging codes, in particular to a ranging code acquisition method, device, electronic equipment and computer-readable storage medium. Background technique [0002] In the satellite system, the ranging code is a binary code sequence used to measure the distance from the satellite to the receiver, and it is a pseudo-random noise code. For example, for a satellite navigation system, in the process of satellite acquisition and tracking, the locally generated ranging code is used for correlation processing with the satellite signal modulated with the ranging code, so the local and flexible generation of the ranging code by the receiver is the key to the navigation satellite The key to capturing and tracking. [0003] In the related technology, a satellite corresponds to a ranging code storage space, and all the satellite ranging codes are calculated and then stored in the corresponding ran...

AI Technical Summary

Problems solved by technology

[0003] In the related technology, a satellite corresponds to a ranging code storage space, and all the satellite ranging codes are calculated and then stored in the corresponding ranging code storage space, and the receiver uses the table lookup method to obtain the ranging of different satellites. Code, when the number of satellites is large, the storage space required is larger, the physical memory occupied is larger, and a large amount of circuits will be consumed

Images