The performance of a channelized radiometer in detecting a frequency-hopping signal is analyzed for a variable number of parallel radiometers not necessarily covering the entire hopping band. The full band may not be covered because of an attempt to avoid interfering signals, limited radiometer resources, lack of knowledge of the band frequency location, or combinations of these factors. The analysis provides for calculation of the value of the signal-to-noise ratio (SNR) required to achieve a given probability of detection for a specified false-alarm rate, assuming an observation interval equivalent to N hops using either a fixed or a moving observation window. The dependence of the probability of detection on a misalignment of the detector observation intervals with the hop transitions is also analyzed. Numerical results are presented and discussed. Applied to a typical slow-hopping VHF radio, the results imply that a 150-hop transmission can be detected by a channelized radiometer covering half the hopping band when the SNR is about 2 dB.<>
Frequency-hopping signal detection using partial band coverage
IEEE Transactions on Aerospace and Electronic Systems ; 29 , 2 ; 540-553
1993-04-01
1211935 byte
Article (Journal)
Electronic Resource
English
Frequency-Hopping Signal Detection Using Partial Band Coverage
Online Contents | 1993
|Design of 3 mm Band Hopping Frequency Synthesizer
British Library Online Contents | 2008
|Multi-Access Signal Detection for Frequency Hopping Based on Interference Subspace Estimation
British Library Online Contents | 2004
|Optimum Detection of Slow-Frequency-Hopping Signals
Online Contents | 1994