推 bald: awgn:雜訊 , complexity gaussian:描述衰減 118.168.185.85 03/22 00:35
→ ryhharn: 那除了AWGN noise還有什麼noise呢? 42.73.112.250 03/22 12:21
如果matlab noise的寫法寫成這樣
n_re = sqrt(0.5)*randn(1,N/2);
n_im = sqrt(0.5)*randn(1,N/2);
n=n_re + i*n_im;
那這個是AWGN noise嗎?
※ 編輯: ryhharn (61.230.55.140), 03/22/2015 20:01:32
→ emitter: 每一個都是zero-mean unit-varaince 140.113.45.64 03/23 07:13
→ emitter: 的複數高斯雜訊,而且是white 140.113.45.64 03/23 07:14
→ emitter: 你舉的例子雜訊跟Rayleigh-fading通道 140.113.45.64 03/23 07:15
→ emitter: 其實是同一種東西,只差在power 140.113.45.64 03/23 07:16
→ emitter: 另外,color noise就不是AWGN囉 140.113.45.64 03/23 07:21
推 nonname: 換個角度想 就算非Gaussian而是別種分布 140.112.42.178 03/23 12:36
→ nonname: 但因central limit theorem 140.112.42.178 03/23 12:37
→ nonname: 最後等效用Gaussian描述也是很合理的 140.112.42.178 03/23 12:37