Navigation signal analysis method for navigation receiver, and computer readable medium

Abstract

The invention discloses a navigation signal analysis method for a navigation receiver, and a computer readable medium. The method comprises the following steps: constructing an original satellite observation matrix corresponding to the receiver through employing the position coordinates of a satellite to which a satellite signal belongs and a corrected satellite pseudo-range observation value; constructing an equation about a receiver positioning vector according to a mapping relationship between the updated satellite observation matrix and the receiver positioning vector, and performing iteration to obtain a positioning vector at the current moment; acquiring a system state vector of the receiver at the current moment by using the positioning vector at the current moment, and acquiring a position vector of the system at the next moment by using the system position vector at the current moment, the position state transition matrix at the current moment and the position noise matrix at the current moment; and acquiring the clock vector of the system at the next moment by using the clock vector of the system at the current moment, the clock state transition matrix at the current moment and the clock noise matrix at the current moment so as to acquire the navigation data of the receiver at the next moment, thereby solving the technical problems that the traditional PVT algorithm is high in calculation complexity and the positioning precision is difficult to meet the high dynamic requirements of the carrier.

Description

technical field [0001] The invention belongs to the technical field of satellite communication, and more specifically, relates to a navigation signal analysis method of a navigation receiver and a computer-readable medium. Background technique [0002] In the satellite communication system, the satellite moves around the earth at a relative speed of tens of km / s, and correspondingly, a navigation receiver is provided to use the satellite signal for navigation. Generally speaking, the navigation receiver uses PVT calculation to analyze the navigation signal. It is necessary to output the user's longitude, latitude, altitude, speed and other measurement information in real time. In order to ensure that users receive high-precision and high-reliability positioning information in real time, it is necessary to design a low-complexity, high-precision navigation receiver solving device. [0003] Traditional PVT algorithms for navigation receivers mainly include least squares resid...

AI Technical Summary

Problems solved by technology

[0004] Aiming at at least one defect or improvement requirement of the prior art, the present invention provides a navigation signal analysis method of a navigation receiver and a computer storage medium, aiming at solving the problem that the traditional PVT algorithm has high computational complexity and positioning accuracy is difficult to meet the high dynamic requirements of the carrier technical issues

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