A filter algorithm for receiver tracking loops assisted by inertial information

IF 16.4 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY

Accounts of Chemical Research Pub Date : 2021-12-14 DOI:10.1017/S0373463321000916

Zhifeng Han, Zheng Fang

引用次数: 0

Abstract

Abstract In traditional satellite navigation receivers, the parameters of tracking loop such as loop bandwidth and integration time are usually set in the design of the receivers according to different scenarios. The signal tracking performance is limited in traditional receivers. In addition, when the tracking ability of weak signals is improved by extending the integration time, negative effect of residual frequency error becomes more and more serious with extension of the integration time. To solve these problems, this paper presents out research on receiver tracking algorithms and proposes an optimised tracking algorithm with inertial information. The receiver loop filter is designed based on Kalman filter, reducing the phase jitter caused by thermal noise in the weak signal environment and improving the signal tracking sensitivity. To confirm the feasibility of the proposed algorithm, simulation tests are conducted.

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惯性信息辅助下的接收机跟踪环路滤波算法

摘要在传统的卫星导航接收机中，跟踪环路的带宽、积分时间等参数在接收机设计中通常会根据不同的场景进行设置。传统接收机的信号跟踪性能受到限制。此外，当通过延长积分时间来提高微弱信号的跟踪能力时，随着积分时间的延长，剩余频率误差的负面影响越来越严重。针对这些问题，本文对接收机跟踪算法进行了研究，提出了一种基于惯性信息的优化跟踪算法。接收机环路滤波器基于卡尔曼滤波器设计，降低了微弱信号环境下热噪声引起的相位抖动，提高了信号跟踪灵敏度。为了验证所提算法的可行性，进行了仿真试验。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.