Title : 
Exact second-order bandpass digital filters
         
        
        
            Author_Institution : 
University Software Systems, Los Angeles, CA, USA
         
        
        
        
        
            fDate : 
3/1/1971 12:00:00 AM
         
        
        
        
            Abstract : 
Exact expressions for the sine and tangent forms of the second-order digital Butterworth bandpass filters are given. Here "exact" means that the placement of the half-power points is precise. These results are then used to generate exact forms of the band reject filters.
         
        
            Keywords : 
Band pass filters; Bandwidth; Digital filters; Discrete Fourier transforms; Filtering theory; Frequency; Function approximation; Sampling methods; Spline; Upper bound;
         
        
        
            Journal_Title : 
Audio and Electroacoustics, IEEE Transactions on
         
        
        
        
        
            DOI : 
10.1109/TAU.1971.1162168