【摘要】：雷達極化檢測器性能對比分析可為極化檢測器的工程設(shè)計提供重要參考,但目前針對其檢測性能的評估理論仍不完善,尤其缺乏多視情形下的分析結(jié)果.文章以極化雷達多視協(xié)方差矩陣的復(fù)Wishart分布為基礎(chǔ),采用蒙特卡洛仿真與理論推導(dǎo)得到了7種經(jīng)典極化檢測器的多視檢測性能曲線,并構(gòu)建曲線下面積(Area Under Curve,AUC)指標(biāo)對檢測性能進行自動排序.仿真實驗結(jié)果表明4視處理時的檢測性能排序為:最優(yōu)極化檢測器極化白化濾波器≈似然比檢驗最佳能量檢測器極化匹配濾波器≈多視極化能量檢測器單通道檢測器.理論推導(dǎo)結(jié)果表明,具有線性加權(quán)形式的極化檢測器,其檢測與虛警概率都具有兩類等價的數(shù)學(xué)表達式,其中基于Gamma函數(shù)的表達式可用于快速計算出恒虛警檢測門限.最后采用全極化合成孔徑雷達實測數(shù)據(jù),對上述結(jié)論進行了驗證.
[Abstract]:The performance comparison and analysis of radar polarimetric detector can provide an important reference for the engineering design of polarization detector, but the evaluation theory of its detection performance is still imperfect, especially the analysis results under multi-view condition. Based on the complex Wishart distribution of multi-view covariance matrix of polarimetric radar, the multi-view detection performance curves of seven classical polarimetric detectors are obtained by Monte Carlo simulation and theoretical derivation. And the Area under area (AUC) index is constructed to automatically sort the detection performance. The simulation results show that the order of detection performance is as follows: the best polarimetric detector polarization whitening filter 鈮，

本文編號：2120134