Title :
Cyclostationarity-based signal separation in interceptors based on a single sensor
Author :
Ojeda, Omar A Yeste ; Grajal, ÙJess
Author_Institution :
Dept. of Signals, Univ. Politec. de Madrid, Madrid
Abstract :
This work explores the capabilities of cyclostationarity for interference rejection when only one sensor is available. The aim is to detect an unknown signal when it overlaps simultaneously in time and frequency with an interference whose cyclic spectrum is known. The approach is to split separation and detection problems: Firstly, the interference is separated by means of a blind adaptive frequency shift (FRESH) filter. Then, detection is made on the residual, which is assumed to consist of noise and the signal of interest. Simulation results prove a sensitivity improvement in practical situations.
Keywords :
adaptive filters; adaptive signal processing; blind source separation; interference suppression; signal detection; spectral analysis; blind adaptive frequency shift filter; cyclic spectrum; cyclostationarity-based signal separation; interference rejection; signal detection; single sensor; split separation; Adaptive filters; Electronic warfare; Frequency; Interference; Radio spectrum management; Sensor arrays; Sensor systems; Signal detection; Source separation; Statistics;
Conference_Titel :
Radar Conference, 2008. RADAR '08. IEEE
Conference_Location :
Rome
Print_ISBN :
978-1-4244-1538-0
Electronic_ISBN :
1097-5659
DOI :
10.1109/RADAR.2008.4720750
