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- Title
A TUNABLE HETERODYNE FILTER DESIGN ON RECONFIGURABLE FABRIC.
- Authors
SHARMA, SANJAY; CHAUHAN, R. C.; ATTRI, SANJAY
- Abstract
This paper presents the design of tunable heterodyne filter that can be used very effectively in the elimination of narrowband interference in wide-band communications. The filter makes use of the heterodyne process to create a tunable notch filter from a fixed coefficient high-pass filter. It has been shown that it is possible to generate a signal that can be used to set the heterodyne frequency to match the tunable heterodyne notch filter to the center of the detected interference through the use of a simple second order IIR band-pass filter to detect the narrowband interference. Moreover various options have been illustrated for the implementation of heterodyne filters using Xilinx Virtex field programable gate arrays (FPGAs).
- Subjects
FIELD programmable gate arrays; GATE array circuits; PROGRAMMABLE logic devices; HETERODYNE reception; BROADBAND amplifiers; ELECTRONIC amplifiers
- Publication
Journal of Circuits, Systems & Computers, 2004, Vol 13, Issue 5, p981
- ISSN
0218-1266
- Publication type
Article
- DOI
10.1142/S0218126604001805