DocumentCode :
2342944
Title :
Limitations on the detectability of spread-spectrum signals
Author :
Sonnenschein, Alexander ; Fishman, Philip M.
Author_Institution :
MITRE Corp., Bedford, MA, USA
fYear :
1989
fDate :
15-18 Oct 1989
Firstpage :
364
Abstract :
The standard analysis of the radiometric detectability of a spread-spectrum signal assumes a background of stationary white Gaussian noise whose power spectral density can be measured very accurately. This assumption yields a fairly high probability of interception, even for signals of short duration. Using a generalization of the detection scenario, the authors demonstrate that realistic detection of these signals by a wideband radiometer can be considerably more difficult than is indicated by the standard result. The generalized result is then used to consider the realistic effectiveness of optimal detection of low-SNR direct-sequence pseudonoise waveforms
Keywords :
interference (signal); radiometers; signal detection; spread spectrum communication; white noise; direct-sequence pseudonoise waveforms; interception probability; low SNR waveforms; optimal detection; power spectral density; signal detection; spread-spectrum signals; stationary white Gaussian noise; wideband radiometer; Density measurement; Gaussian noise; Measurement standards; Noise measurement; Power measurement; Radiometry; Signal analysis; Signal detection; Spread spectrum communication; Wideband;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Military Communications Conference, 1989. MILCOM '89. Conference Record. Bridging the Gap. Interoperability, Survivability, Security., 1989 IEEE
Conference_Location :
Boston, MA
Type :
conf
DOI :
10.1109/MILCOM.1989.103955
Filename :
103955
Link To Document :
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