Simulation study on a novel high‐dynamic GPS software receiver

Abstract

Purpose

The purpose of this paper is to present a novel scheme of high‐dynamic global positioning system (GPS) software receiver in order to improve the capturing speed and trading accuracy of GPS receiver.

Design/methodology/approach

First, the beginning of C/A code can be found through the delay and multiply approach. To solve the problems of estimating a certain satellite's Doppler shift from the signals of several visible satellites, the “delay and accumulation unit” is put forward, and besides, performance of inertial navigation system‐assisted tracking loop in high‐dynamic circumstance is analysed by means of mathematical modelling and simulation experiments, whose results verified the validity of the proposed tracking scheme.

Findings

In this paper, the two‐dimension searching process in conventional acquisition scheme is transformed into two one‐dimension searching processes, thus improving the capturing speed.

Research limitations/implications

This software receiver has only been verified by means of mathematical simulation, and the validity in hardware receiver is still obscured.

Originality/value

This paper presents a novel high‐dynamic GPS software receiver scheme, which can be seen as a reference of engineering application and simulation research.

Citation

Shicheng, W., Dongfang, Y., Zhiguo, L., Dacheng, L., Jinsheng, Z. and Taiyang, L. (2009), "Simulation study on a novel high‐dynamic GPS software receiver", COMPEL - The international journal for computation and mathematics in electrical and electronic engineering, Vol. 28 No. 6, pp. 1386-1401. https://doi.org/10.1108/03321640910991967