Composite Test-One-sided Test E.g.,Positive DC in WGN with known noise statistics Ho xIn]wln] A>0 H xIn]A+wln] n=0,1..W-1 whxiong@uestc.edu.cnwhxiong@uestc.edu.cn Composite Test—One-sided Test H1 x[n] = A + w[n] E.g., Positive DC in WGN with known noise statistics H0 x[n] = w[n] n=0,1…N-1 A>0