Title :
Correction of frequency-dependent I/Q mismatches in quadrature receivers
Author :
Pun, Kong Pang ; Franca, J.E. ; Azeredo-Leme, C. ; Chan, Cheung Fat ; Choy, Chiu Sing
Author_Institution :
Chinese Univ. of Hong Kong, Shatin
fDate :
11/8/2001 12:00:00 AM
Abstract :
The I/Q mismatches in wideband receivers designed for multichannel reception can be frequency-dependent and limit their image rejection performance to an unacceptable level. An adaptive signal-image separation system is proposed to correct the frequency-dependent I/Q mismatches in the digital domain. Simulation results verifying the proposed method are given
Keywords :
adaptive signal processing; decorrelation; radio receivers; I/Q mismatches correction; adaptive signal-image separation system; convergence; decorrelation; digital domain; frequency-dependent I/Q mismatches; image estimate; image rejection performance; multichannel reception; quadrature receivers; signal estimate; wideband receivers;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20010944
