2012-04-23, 10:55
			
			
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			#2
			
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				回复: 对于biterr的理解
			 
			 
			
		
		
		
			
			
	引用: 
	
	
		
			
				
					作者:  Jael
					 
				 
				有一段卷积编码维特比译码的程序: 
% Encode data bits 
trel = poly2trellis(3,[6 7]); % Define trellis 
msg = randi([0 1],1000,1); % Random data 
code = convenc(msg,trel); % Encode 
tblen = 5; % Traceback length 
 
% Map "0" bit to 1.0 and "1" bit to -1.0.  Also add AWGN. 
ucode = real(awgn(1-2*code, 3, 'measured')); 
 
% Hard decision decoding using binary inputs 
hcode = ucode<0; 
decoded1 = vitdec(hcode,trel,tblen,'cont','hard');  
我想计算误码率,于是用biterr指令,出现了错误,我的做法是: 
[n,r]=biterr(msg,decoded1); 
应该如何改正这个错误才能计算出误码率呢? 
			
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 把中文逗号改成英文逗号。
		  
		
		
		
		
		
		
		
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