Fixed length FIR filters with continuously variable bandwidth

Author

Harris, Fred

Author_Institution

Electr. & Comput. Eng., San Diego State Univ., San Diego, CA, USA

fYear

2009

fDate

17-20 May 2009

Firstpage

931

Lastpage

935

Abstract

Software defined radios require filters of different bandwidths to process the many different bandwidth signals plucked from the other. Filters with different fractional bandwidth, fBW/fSMPL, have different lengths or number of taps, that varies inversely with the fractional bandwidth. Different length filters require different computational resources which include data registers, multipliers, and filter coefficients. This paper describes a filter architecture that supports variable bandwidth FIR filters with fixed computational resources.

Keywords

FIR filters; software radio; bandwidth FIR filters; bandwidth signal; computational resources; data registers; filter coefficients; fixed length FIR filter; fractional bandwidth; multipliers; software defined radio; Bandwidth; Computer architecture; Digital signal processing; Drives; Engines; Finite impulse response filter; Frequency response; Nonlinear filters; Registers; Signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communication, Vehicular Technology, Information Theory and Aerospace & Electronic Systems Technology, 2009. Wireless VITAE 2009. 1st International Conference on

Conference_Location

Aalborg

Print_ISBN

978-1-4244-4066-5

Electronic_ISBN

978-1-4244-4067-2

Type

conf

DOI

10.1109/WIRELESSVITAE.2009.5172575

Filename

5172575