低轨道卫星星载接收机的多普勒频移补偿技术

Proceedings of 2012 9th International Bhurban Conference on Applied Sciences & Technology (IBCAST) Pub Date : 2012-04-03 DOI:10.1109/IBCAST.2012.6177585

U. Naeem, Z. Jawaid, S. Sadruddin

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引用次数: 5

摘要

本文介绍了补偿低轨道卫星接收机多普勒频移的两种技术。其中包括载波跟踪环路模拟补偿技术和压缩接收机技术。进一步详细讨论了压缩接收机技术，该技术涉及对卫星接收机接收到的快速时变载波频率进行精确检测。在MATLAB上对中心频率为100khz、多普勒频移为±100khz的压缩接收机进行了仿真。

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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Doppler shift compensation techniques for LEO satellite on-board receivers

In this paper two techniques employed for compensating the Doppler shift encountered in LEO satellite receivers are presented. These include the analog compensation technique involving the carrier tracking loop and the compressive receiver technique. The compressive receiver technique which involves precise detection of the rapidly time varying carrier frequency received by the satellite receiver is discussed in further detail. A compressive receiver with a center frequency of 100 kHz and a Doppler shift up to ±100 kHz is simulated on MATLAB to test the technique.

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来源期刊

Proceedings of 2012 9th International Bhurban Conference on Applied Sciences & Technology (IBCAST)

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