Simulation study on a novel high‐dynamic GPS software receiver

• Autores: Wang Shicheng, Yang Dongfang, Liu Zhiguo, Luo Dacheng, Zhang Jinsheng, Liu Taiyang
• Localización: Compel: International journal for computation and mathematics in electrical and electronic engineering, ISSN 0332-1649, Vol. 28, Nº 6 (Special Issue: Selected Papers from ICSC 2008), 2009, págs. 1386-1401
• Idioma: inglés
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• Resumen

  • 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.