FIR filter design(window function method)
Gain Character
Gain Character (dB)
Phase Character
Group Delay Character
			difference equation | 
	
| 
			Y[n] = a0*X[n] + a1*X[n-1] + ... + ak*X[n-k] | 
	
		coefficient | 
	
			specific lists | 
	
| No, freq[Hz] , gain(magnification) , gain[dB] , phase[rad], group delay[smpl] | 
