基于互相关的快速角度估计算法

doi:10.11999/JEIT151021

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Abstract

In the system of auto-tracking receiver, the coherent integration is needed to increase the signal-to-noise ratio so that the angle measuring accuracy can be obtained satisfactorily when signal-to-noise ratio is low. The traditional method to improve the signal-to-noise ratio is the code-acquisition algorithm in channels respectively, which needs to do the two-dimensional searching both in the time and in Doppler dimension. The third dimension bit jump searching is needed when necessary. Therefore, the computation is huge and it can not be used in fast angle estimation cases. In this paper, a kind of coherent integration angle measuring algorithm based on cross- correlation between channels is proposed. The new algorithm has the characteristics of simple structure, low computation, almost zero delay. Meanwhile, the angle measuring accuracy of the new algorithm can be up to the level of the traditional method, and thus can meet the auto-tracking receiver requirement easily. The theoretical derivation and simulation results verify the effectiveness of the new algorithm.

Key words： Fast angle estimation Cross-correlation Auto-tracking receiver Interferometer

Received: 10 September 2015 Published: 28 March 2016

PACS:

TN953

Corresponding Authors: XU Chengfa E-mail: bitfengyun@bit.edu.cn

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	XU Chengfa
	HAO Yuxing
	LU Lu
	GAO Meiguo

Cite this article:

XU Chengfa,HAO Yuxing,LU Lu等. Fast Angle Estimation Algorithm Based on Cross-correlation[J]. JEIT, 2016, 38(6): 1446-1451.

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http://jeit.ie.ac.cn/EN/10.11999/JEIT151021 OR http://jeit.ie.ac.cn/EN/Y2016/V38/I6/1446

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