nlf 中文意思是什麼
nlf
解釋
民族解放陣線-
One is the bss based on kernel density estimation ( kde ) and genetic algorithm ( ga ), the other is the blind deconvolution based on high order cross cumulants and ga. without nlf, the performance of separation in both algorithms is independent with the kurtosis of the sources
兩種演算法的實現無需引入非線性函數，因此都與源信號的峭度性質無關;另外，選取全局搜索的遺傳演算法進行尋優，避免了梯度法搜索的局部性，使得演算法均能收斂到問題的全局最優解。 -
Two common defects are founded in bss algorithms based on independent component analysis ( ica ) : the selection of none - linear function ( nlf ) in ica depends on the kurtosis of original signals, which degrades the performance of separation seriously when the observed signals are the mixture of super - gaussian and sub - gaussian signals
2 .對一些現在流行的基於獨立分量分析的盲分離演算法進行深入研究后，發現其存在以下兩點共同缺陷:由於演算法中非線性函數的選取依賴于源信號的峭度性質，當觀測信號為超高斯和亞高斯混合信號時，分離演算法性能急劇下降。
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