Improvement of the directional detection algorithm of fiber-array laser warning receivers

CHEN Wei; CAO Yi-ping; GONG Chi-kun; ZENG Qin-yong; GAN Chun-quan

In order to improve the accuracy of directional detection with the same number of optical channels in the fiber-array laser receiving antenna,a new directional detection algorithm was been proposed,in which the two-dimension waveform data of time delay was expanded into three-dimension data,and the angles were calculated based on the matrix of echoed laser intensity,and the suppression of false alarm was also considered.Comparing the angular resolution with this algorithm before and after,its absolute accuracy was improved significantly from 5° to 2°.It is seen that this algorithm can obviously improve the accuracy of directional detection.

Corresponding author: CHEN Wei, caoyping@mail.sc.cninfo.net;

1. Department of Opto-electronics, Sichuan University, Chengdu 610064, China;

2. Southwest Institute of Technical Physics, Chengdu 610041, China

Received Date: 2007-05-24

Accepted Date: 2007-07-06

Available Online: 2008-06-25

Abstract: In order to improve the accuracy of directional detection with the same number of optical channels in the fiber-array laser receiving antenna,a new directional detection algorithm was been proposed,in which the two-dimension waveform data of time delay was expanded into three-dimension data,and the angles were calculated based on the matrix of echoed laser intensity,and the suppression of false alarm was also considered.Comparing the angular resolution with this algorithm before and after,its absolute accuracy was improved significantly from 5° to 2°.It is seen that this algorithm can obviously improve the accuracy of directional detection.

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Reference (9)

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Improvement of the directional detection algorithm of fiber-array laser warning receivers

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References

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