Title :
High accuracy digital quadrature demodulation
Author :
Inkol, R.J. ; Herzig, M. ; Saper, R.
Author_Institution :
Defence Res. Establ., Ottawa, Ont., Canada
Abstract :
The accuracy of digital quadrature demodulation can be improved by optimizing the matching of the inphase and quadrature channel frequency responses. It is shown that an image rejection performance exceeding 100 dB can be achieved using finite impulse response filters having as few as eleven nonzero coefficients.<>
Keywords :
FIR filters; demodulation; digital filters; frequency response; FIR filters; digital quadrature demodulation; finite impulse response filters; image rejection performance; inphase frequency response; quadrature channel frequency response; Band pass filters; Computational efficiency; Demodulation; Finite impulse response filter; Frequency; IIR filters; Low pass filters; Matched filters; Radar imaging; Signal processing;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406221
