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

Volume

4

fYear

2002

fDate

6/24/1905 12:00:00 AM

Firstpage

1680

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;

fLanguage

English

Publisher

ieee

Conference_Titel

Vehicular Technology Conference, 2002. VTC Spring 2002. IEEE 55th

Print_ISBN

0-7803-7484-3

Type

conf

DOI

10.1109/VTC.2002.1002906

Filename

1002906