coherence matrix 中文意思是什麼
coherence matrix
解釋
相干矩陣-
Based on the above theory and methods, the main works of this thesis are lasted as follows : starting from the propagation law of partial coherent light and beam coherence - polarization ( bcp ) matrix approach, the properties of pgsm beams through both an axis - symmetric paraxial optical abcd system and an axis - unsymmetric one are studied. the analytical propagation equations of pgsm beams are derived, which enable us to study the propagation - induced polarization changes and irradiance distributions of pgsm beams through an axis - symmetric paraxial optical abcd system and an axis - unsymmetric one
在此基礎上，本文進行的主要工作有：基於空間-時間域中互強度的傳輸理論和bcp矩陣處理方法，首次研究了pgsm光束通過對稱和非對稱abcd光學系統和光闌的傳輸變換特性，推導出了pgsm光束傳輸表達式，可以對pgsm光束偏振和光強的傳輸變化進行分析。 -
Abstract : in this paper ? for real marine underwater noise data by using synchronous acquisition of points ? inputs - output covariance matrix is obtained by filtering ? compensating delay and crosscorrelation. then the contribution of inputs to output in network sense and partial coherence as well as other useful quantities are calculated from the inputs - output covariance matrix
文摘:本文對多點同步測量方法記錄的艦艇噪聲數據，採取在時域上作濾波、時延補償和互相關得到輸入輸出協方差矩陣，然後從輸入輸出協方差矩陣計算在網路意義和偏相干意義下輸入對輸出的貢獻以及其它有用的量。 -
Because the signals of the target reflections are coherent, the reconstructing matrix algorithm which uses the time - shift correlation method is studied. not only has it the good ability to solve the coherence problem, but it also reduces the computation because of the time - shift correlation instead of the eigenvalue decomposition
由於雷達系統中目標回波具有相關性，必須考慮解相干處理，所以研究了利用時移相關去噪的矩陣重構演算法，該演算法具有較好的解相干能力，且用時移相關去噪免去了特徵分解去噪過程，可直接使用esprit演算法求解旋轉不變關系，簡化了過程，減小了計算量。
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