SISAR中運動目標全息信號的表示及仿真研究
The Expression and simulation of radio holographic signal for the moving object in sisar
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摘要: 在運用陰影逆合成孔徑雷達(SISAR)對運動目標進行成像和識別研究中,需要得到相關目標的全息信號。該文在分析目標側影輪廓與其全息信號關系的基礎上,導出了一種更具普遍意義的全息信號的表達形式,式中的各組成具有明確的物理含義。為驗證其在實際應用中的有效性,以外場試驗獲得兩種目標的全息信號為比較對象,參照外場試驗條件進行了仿真。比較結果說明了該仿真方法實際有效。Abstract: The simulation of radio holographic signal for moving objects acts an important role in the study of the target imaging and recognition in the research of the SISAR. A gener-alized expression is induced on the basis of analyzing the relation between the shadow of the moving target and its radio holographic signal. Further, each component in the expression has explicit physical signification. The validity of the method is shown by the comparision of the simulation results with the experimental results of two air moving targets in the same condition.
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