Title :
Digital filter equalization of analog gain and phase mismatch in I-Q receivers
Author_Institution :
Dept. of Electr. & Comput. Eng., San Diego State Univ., CA, USA
fDate :
29 Sep-2 Oct 1996
Abstract :
Gain and phase mismatch between the two signal processing paths of an I-Q receiver are responsible for artifacts which limit the dynamic range of a communication system. We describe and demonstrate a technique to adaptively balance the gain and phase of the I-Q paths with DSP based balancing loops which operate as background tasks while processing input data
Keywords :
digital filters; equalisers; filtering theory; receivers; signal processing; DSP based balancing loops; I-Q receivers; analog gain mismatch; communication system; digital filter equalization; dynamic range; heterodyne process; input data processing; phase mismatch; signal processing; Blind equalizers; Digital filters; Digital signal processing; Dynamic range; Frequency; Gain; Laboratories; Signal processing; Sparse matrices; Temperature;
Conference_Titel :
Universal Personal Communications, 1996. Record., 1996 5th IEEE International Conference on
Conference_Location :
Cambridge, MA
Print_ISBN :
0-7803-3300-4
DOI :
10.1109/ICUPC.1996.562684
