优化多普勒搜索空间以提高GPS信号的捕获速度

IF 1.2 4区地球科学 Q3 ENGINEERING, CIVIL

Survey Review Pub Date : 2022-03-15 DOI:10.1080/00396265.2022.2046426

K. Bahmani, M. Nezhadshahbodaghi, M. Mosavi

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引用次数: 0

摘要

在提高全球定位系统(GPS)信号的获取速度方面，采集部分存在一些严重的问题。在本研究中，我们提出了三种新的方法来优化多普勒搜索空间，提高GPS信号的获取速度。实验结果表明，我们提出的方法在执行时间和计算复杂度方面分别比传统的bin-fixed方法高出约26-19%、33-19%和36-20%，其中第一种方法(子频带)、第二种方法(多频带)和第三种方法(第一种和第二种方法的集成)的性能优于传统的bin-fixed方法。

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Optimisation of doppler search space to improve acquisition speed of GPS signals

The acquisition section has some serious problems to increase the speed of acquiring the Global Positioning System (GPS) signals. In this study, we propose three new methods to optimise the Doppler search space and improve the acquisition speed of the GPS signals. The experimental results represent that our proposed methods have a superior performance compared to the conventional bin-fixed method so that the first (sub-frequency band), second (multi-frequency bins), and third (integration of the first and second methods) suggested methods outperform the bin-fixed method in terms of the execution time and computational complexity by approximately 26–19%, 33–19%, and 36–20%, respectively.

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来源期刊

Survey Review 地学-地球科学综合

CiteScore

3.50

自引率

6.20%

发文量

审稿时长

6 months

期刊介绍： Survey Review is an international journal that has been published since 1931, until recently under the auspices of the Commonwealth Association of Surveying and Land Economy (CASLE). The journal is now published for Survey Review Ltd and brings together research, theory and practice of positioning and measurement, engineering surveying, cadastre and land management, and spatial information management. All papers are peer reviewed and are drawn from an international community, including government, private industry and academia. Survey Review is invaluable to practitioners, academics, researchers and students who are anxious to maintain their currency of knowledge in a rapidly developing field.