A novel approach to the design of I/Q demodulation filters

Author

Zhang, G. ; Al-Khalili, D. ; Inkol, R.J. ; Saper, R.

Author_Institution

Dept. of Electr. & Comput. Eng., R. Mil. Coll. of Canada, Kingston, Ont., Canada

Volume

1

fYear

1993

fDate

19-21 May 1993

Firstpage

72

Abstract

A novel filter design approach to digital /Q (in-phase/quadrature) demodulation is proposed. This approach consists of two methods, i.e., a high-pass filter method suitable for B<f₀ and a new low pass filter method which is suitable for B<2f_o, where B is the IF (intermediate frequency) signal bandwidth and f_o is the carrier frequency. It maintains the advantages of the earlier method, such as zero DC offset, matched two-channel filter responses, and good performance over a wide bandwidth. The new methods possess higher computational efficiency than other approaches

Keywords

computational complexity; demodulation; digital filters; high-pass filters; low-pass filters; matched filters; I/Q demodulation; computational efficiency; filter design; high-pass filter method; performance; two-channel filter responses; Bandwidth; Baseband; Demodulation; Digital filters; Educational institutions; Filtering theory; Frequency; Narrowband; Signal generators; Signal processing algorithms;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications, Computers and Signal Processing, 1993., IEEE Pacific Rim Conference on

Conference_Location

Victoria, BC

Print_ISBN

0-7803-0971-5

Type

conf

DOI

10.1109/PACRIM.1993.407217

Filename

407217