THE PERFORMANCE OF A MULTI-CHANNEL N:M DETECTOR USING CFAR AGAINST WHITE NOISE JAMMING

Authors
  1. Herring, R.W.
  2. Turner, R.M.
  3. Hung, E.K.L.
Corporate Authors
Communications Research Centre, Ottawa ONT (CAN);Defence Research Establishment Ottawa, Ottawa ONT (CAN)
Abstract
The detection performance of an N:M (N out of M) detector radiating on M independent channels and using CFAR in the individual channels is analyzed in the presence of white noise jamming with Rayleigh amplitude statistics. The particular case examined is for an M=10 channel system with from zero to 10 channels equally jammed, detecting a target having Rayleigh channel-to-channel amplitude statistics and equal average powers in all channels. The design P sub D is 90% and the design P sub FA is 10E-6. It is shown that under these conditions the optimum choice for N is always less than or equal to 3, with small values being most appropriate for situations with many channels being heavily jammed.
Report Number
CRC-TN-719 — Technical Note
Date of publication
15 Jan 1984
Number of Pages
21
DSTKIM No
86-04196
CANDIS No
98827
Format(s):
Hardcopy;Originator's fiche received by DSIS

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