Title :
Robust feature detection for signal interception
Author :
Spooner, Chad M. ; Gardner, William A.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA
fDate :
5/1/1994 12:00:00 AM
Abstract :
The problem of detecting the presence of direct sequence spread-spectrum signals in noise is considered, and the detector consisting of a filter followed by a delay-and-multiply device is optimized with respect to the filter bandwidth and the delay to maximize robustness to errors in assumed values of pulse rate and carrier frequency. Output SNR is used for performance optimization, and the results are corroborated by evaluating receiver operating characteristics
Keywords :
feature extraction; filtering and prediction theory; pulse amplitude modulation; radio receivers; signal detection; spread spectrum communication; bandwidth; carrier frequency; delay-and-multiply device; detector; direct sequence spread-spectrum signals; errors; filter; noise; output SNR; performance optimization; pulse rate; receiver operating characteristics; robust feature detection; signal interception; Bandwidth; Computer vision; Delay; Detectors; Filters; Frequency; Noise robustness; Signal detection; Signal to noise ratio; Spread spectrum communication;
Journal_Title :
Communications, IEEE Transactions on
