NDLI: Suppression of FM adjacent channel interference

Content Provider	IEEE Xplore Digital Library
Author	Larimore, M. Treichler, J.
Copyright Year	1984
Description	Author affiliation: ARGO Systems, Inc., Sunnyvale, CA (Larimore, M.)
Abstract	Within current RF allocations, increases in communication traffic have resulted in a trend toward spectral crowding. Effects of adjacent channel interference have traditionally been minimized by geographically isolating channel assignments, or by over-spacing channel centers, inefficiencies which will be unacceptable for future needs. As a result of increased density of communication signals, future receiver hardware will require digital signal processing techniques for suppressing adjacent channel interference. Over the last few years, there have been research efforts aimed at solutions for this type of interference, especially in FM communications Of specific interest here is a mathematical structure developed in [7] addressing suppression of such interfering components after discrimination, where bandwidth reduction results in savings in computation requirements. Initial attempts to apply adaptive filtering techniques to this structure indicated that fundamental problems existed with the formulation. In this paper, this technique is closely scrutinized, and we demonstrate that significant baseband improvements are unlikely for general modulating signals, contrary to published claims.
Starting Page	211
Ending Page	214
File Size	94645
Page Count	4
File Format	PDF
DOI	10.1109/ICASSP.1984.1172531
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1984-03-19
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Interchannel interference Signal processing Interference suppression Phase locked loops Sensor arrays Hardware Digital signal processing Telephony Radiofrequency interference Phase estimation
Content Type	Text
Resource Type	Article

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