匹配傅里葉變換檢測SAR中的運動目標
Detecting the Moving Target in SAR Data Using the Match Fourier Transform
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摘要: 該文介紹了應(yīng)用匹配傅里葉變換檢測SAR中運動目標的方法。文中討論了信號模型、檢測方法，并進行了仿真研究。仿真和實際的SAR數(shù)據(jù)中運動目標檢測處理結(jié)果表明：在雷達平臺運動速度被補償，且脈沖壓縮之后，再應(yīng)用匹配傅里葉變換進行運動目標檢測是比較好的檢測方法；在一定的條件下，也可以比較相鄰SAR圖像中強點間相對位置的變化來判斷運動目標。
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關(guān)鍵詞:
- SAR;高分辨;檢測;運動目標;匹配傅里葉變換
Abstract: In this paper, a method of detecting moving targets in SAR using the match FourieT transform is introduced. The signal model and the detecting method are discussed and simulations are performed. The results of the simulations and the practices of detecting moving targets in SAR data show that when the velocity of the radar platform is compen-sated and pulses are compressed, the moving targets are easily detected using match Fourier transform, and under certain conditions, the moving targets may be detected depending on the relative position of strong points in contiguous SAR image. -
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