Title :
The correction of frequency-dependent I/Q mismatches in quadrature receivers by adaptive signal separation
Author :
Pun, Kong-Pang ; Franca, José E. ; Azeredo-Leme, C.
Author_Institution :
Chinese Univ. of Hong Kong, Shatin, China
Abstract :
The I/Q mismatches in a quadrature radio receiver designed for multi-channel reception can be frequency-dependent and limit its image rejection performance to an unacceptable level. In this paper, 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 detection; demodulators; radio receivers; adaptive signal separation; frequency-dependent I/Q mismatches; image rejection performance; multi-channel reception; quadrature radio receiver; signal-image separation system; 3G mobile communication; Demodulation; Frequency; GSM; Image generation; Signal design; Signal generators; Signal to noise ratio; Source separation; Wireless communication;
Conference_Titel :
ASIC, 2001. Proceedings. 4th International Conference on
Conference_Location :
Shanghai
Print_ISBN :
0-7803-6677-8
DOI :
10.1109/ICASIC.2001.982591
