white of the higher order 中文意思是什麼
white of the higher order
解釋
高級白- white : n 懷特〈姓氏〉。adj 1 白（色）的，雪白的；白晰的，帶白色的；蒼白的。2 白種人的。3 銀制的；白衣的...
- of : OF ＝Old French 古法語。
- the : 〈代表用法〉…那樣的東西，…那種東西。1 〈用單數普通名詞代表它的一類時（所謂代表的單數）〉 （a） 〈...
- higher : adj 〈high 的比較級〉較高的；高等的。 higher command 【軍事】＝ high command higher criticism 聖...
- order : n 1 次序，順序；整齊；（社會）秩序，治安；狀況，常態；健康狀態；條理；會場秩序；議事程序，日程；...
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First, the thesis introduces the definitions and the attributes of the higher - order statistics. it is insensitive to additive gaussian noise ( white or colored ), which is what we base on to doa problems. then two doa estimation algorithms based on higher - order statistics are presented, one is that forming cumulant matrix pencil used in esprit to estimate doa problems, the other is spectrum estimation method for doa estimation based on the eigenstructure analysis of the fourth - order cumulant, and comparing the effects of the estimation to conventional covariance - based doa algorithms "
論文首先對高階統計量的定義和性質作了介紹，特別指出了高階統計量對加性高斯噪聲（白色或有色）不敏感，這是我們利用它進行波達方向估計的理論依據，然後文中提出了兩種基於高階統計量的波達方向估計方法，一種是利用子空間旋轉不變技術構造四階累積量矩陣進行估計的方法，另一種是基於四階累積量陣特徵分解的空間譜估計測向方法，並將它們的估計效果與傳統協方差方法的效果進行比較。 -
Higher - order cumulants are blind to additive gaussian noise ( white or colored ) and this is the theoretical advantage of higher - order cumulants. secondly, the thesis introduces the doa problems and the widely used music method. to overcome the shortcomings of the traditional music method, the thesis proposes the foc - music method, which has better performance than the traditional music method
本文首先介紹了高階統計量的定義和性質，特別指出了高階累積量對加性高斯（白色或有色）噪聲的盲性，這是利用它進行波達方向估計的理論優勢;其次，文中介紹了波達方向（ doa ）估計問題和doa估計中應用最廣的多信號分類法（ music ） 。 -
Based on the normal equation algorithm to fir system identification and wavelet iteration, a method to estimate the wavelet from the third - order cumulant of field data is developed. due to the fact that higher order cumulant retains the phase information of the signal, and can suppress the gaussian noise ( color or white noise ) naturally, we can improve the time resolution via inverse filtering the wavelet estimated
本文在基於高階累積量的fir系統辨識基礎上，利用觀測信號的三階累積量對探地雷達子波進行估計，提出一種簡單的迭代演算法改善了波估計性能，據此進行反褶積，改善反射信號的信雜比和時間解析度。
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