Title :
Digital compensation scheme for coefficient errors of complex filter bank parallel A/D converter in low-IF receivers
Author :
Sanada, Yukitoshi ; Ikehara, Masaaki
Author_Institution :
Fac. of Sci. & Eng., Keio Univ., Yokohama, Japan
fDate :
6/24/1905 12:00:00 AM
Abstract :
A digital compensation scheme for coefficient errors of a complex filter bank in low-IF receivers is presented. The complex filter bank is employed to suppress DC offset and image signals in the low-IF receivers and relax the requirements on the conversion rate and resolution of A/D converters. The proposed compensation scheme regenerates interference due to the coefficient errors and subtracts it from the digital signal converted by an A/D converter. The proposed scheme also improves the effective resolution of A/D converters.
Keywords :
analogue-digital conversion; channel bank filters; interference suppression; radio receivers; signal resolution; ADC resolution; DC offset signal suppression; coefficient errors; complex filter bank parallel A/D converter; conversion rate; digital compensation; digital signal processing; image signal suppression; interference regeneration; low-IF receivers; Baseband; Electronic mail; Filter bank; Image converters; Image resolution; Interference; Neodymium; Receivers; Signal resolution; Software radio;
Conference_Titel :
Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th
Print_ISBN :
0-7803-7484-3
DOI :
10.1109/VTC.2002.1002906
