資源簡介
兩個l1準則下的噪聲干擾信號壓縮感知重構舉例,兩個例子的稀疏矩陣均為DCT矩陣,而觀測矩陣分別采用單位陣和隨機矩陣,有詳細的步驟和使用方法,適用于初步的學習壓縮感知方法。
代碼片段和文件信息
function?y?=?eig_max(Amnum)
%Calculate?the?maximal?singular?value?of?A‘*A
%m?is?the?row?number?for?A
%num?is?the?maximal?iterative?number
%Created?by?Li?Ao?from?Harbin?Engineering?University
u?=?randn(m1);
u?=?u./norm(u);
k?=?num;
A?=?A*A‘;
while(k)
????u?=?A*u;
????u?=?u./norm(u);
????k?=?k-1;
end
y?=?u‘*A*u;
?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件????????328??2012-10-30?15:36??l1_norm?for?compressed?sensing\eig_max.m
?????文件????????442??2010-11-16?06:54??l1_norm?for?compressed?sensing\gen_dct.m
?????文件???????1125??2012-10-30?16:04??l1_norm?for?compressed?sensing\l1_norm.m
?????文件???????1064??2012-10-30?15:55??l1_norm?for?compressed?sensing\Optimal_l1_norm.m
?????文件???????1199??2012-10-30?16:18??l1_norm?for?compressed?sensing\randsampling_l1_norm.m
?????文件????????280??2012-10-30?15:22??l1_norm?for?compressed?sensing\up_data.m
?????目錄??????????0??2012-10-30?16:06??l1_norm?for?compressed?sensing
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?????????????????4438????????????????????7
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