NDLI: A rapid channel detection system for EW receivers

Content Provider	IEEE Xplore Digital Library
Author	Ranson, R.G. Gibbons, S.G.
Copyright Year	1990
Description	Author affiliation: Watkins-Johnson Co., Palo Alto, CA, USA (Ranson, R.G.; Gibbons, S.G.)
Abstract	Strategies for the rapid, accurate identification of the input signal frequency generally fall into one of two classes. The first uses broadband techniques to simultaneously cover all frequencies, maintaining a high probability of intercept at the expense of possible overload in dense multiple-signal environments. The second class uses narrowband receivers that are swept or clustered in channels in some way to cover a broad range. This compromises probability of intercept for the ability to filter out certain signals in dense environments. A unique RF/digital subsystem that attempts to combine the merits of these two strategies is described. It uses a low-resolution, ultrafast IFM (instantaneous frequency measurement) to provide real-time signal frequency information that can be used to dynamically allocate receiver resources. Incorporating this type of subsystem in the RF or IF section of a receiver opens up new possibilities for system architecture by providing useful signal processing capabilities much earlier in the RF chain than previously possible.
Starting Page	961
Ending Page	963
File Size	188105
Page Count	3
File Format	PDF
DOI	10.1109/MWSYM.1990.99738
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1990-05-08
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Radio frequency Signal processing Signal resolution Delay lines Modems Limiting Broadband amplifiers Radiofrequency amplifiers Dynamic range Detectors
Content Type	Text
Resource Type	Article

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