一种全自动的检测方法用于SAR-ATI的GMTI

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2005, Vol. 26 ›› Issue (1): 84-89.

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Fully Automatic Detector in SAR-ATI of GMTI

GAO Fei¹, MAO Shi-yi¹, YU Zhen-ming², YUAN Yun-neng¹

1. Faculty 203, Beijing University of Aeronautics and Astronautics, Beijing 100083, China;2. Wuzhou Branch of Guangxi University, Wuzhou 543002, China

Received:2004-05-14 Revised:2004-09-21 Online:2005-02-25 Published:2005-02-25

Abstract

Abstract: A fully automatic detector named "Two Step-Fitting Gaussian Function" aims at processing the output signals from spaceborne synthelic aperture radar (SAR)-along track interferometry (ATI) is proposed. Without the need to assume jointly Gaussian distributed data and derive a theoretical PDF for the interferogram, the new adaptive detection scheme automatically extracts moving targets from stationary clutter and noises. By this method the probability of false alarm P_fa is greatly reduced and the minimum detectable velocity (MDV) is investigated.

Key words: synthetic aperture radar, along track interferometry, ground moving target indication, minimum detectable velocity, probability of false alarm

CLC Number:

V243

GAO Fei;MAO Shi-yi;YU Zhen-ming;YUAN Yun-neng. Fully Automatic Detector in SAR-ATI of GMTI[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2005, 26(1): 84-89.

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Fully Automatic Detector in SAR-ATI of GMTI

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