DocumentCode :
2654209
Title :
Detection of frequency hopping signals with a sweeping channelized radiometer
Author :
Lehtomäki, Janne J. ; Juntti, Markku ; SAARNISAARI, Harri
Author_Institution :
Centre for Wireless Commun., Oulu Univ., Finland
Volume :
2
fYear :
2004
fDate :
7-10 Nov. 2004
Firstpage :
2178
Abstract :
The paper presents new performance analysis of a frequency sweeping channelized radiometer when the signal to be detected is a frequency hopping signal. Often technology limits the instantaneous bandwidth that can be used. When frequency sweeping (search strategy) is used, the center (carrier) frequency of the receiver is changed rapidly to increase probability of intercept (POI). Conventional logical OR, sum and maximum based methods are used to combine the channelized radiometer outputs. Exact results are derived for the sum based channelized radiometer. An accurate approximation of the performance of the sweeping maximum based channelized radiometer is presented. Numerical results show that although sweeping increases POI, the final probability of detection is not increased if the number of hops observed is large.
Keywords :
frequency hop communication; probability; radiometers; signal detection; frequency hopping signals; frequency sweeping; instantaneous bandwidth; probability of intercept; signal detection; sweeping channelized radiometer; Bandwidth; Detectors; Frequency; Performance analysis; RF signals; Radiometry; Receiving antennas; Signal detection; Spread spectrum communication; Wireless communication;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signals, Systems and Computers, 2004. Conference Record of the Thirty-Eighth Asilomar Conference on
Print_ISBN :
0-7803-8622-1
Type :
conf
DOI :
10.1109/ACSSC.2004.1399553
Filename :
1399553
Link To Document :
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