Title :
Ambiguity function properties of frequency-hopped radar/sonar signals
Author :
Donohoe, J. Patrick ; Ingels, Franklin M.
Author_Institution :
Dept. of Electr. Eng., Mississippi State Univ., MS, USA
Abstract :
Properties of the ambiguity function for frequency-hopped radar/sonar signals with firing orders based on Costas arrays are analyzed. The locations of range-Doppler coincidence values are obtained using ambiguity function plots of long-duration signals containing large numbers of cycles per subpulse. The general shape of the ambiguity function for short-duration signals containing small numbers of cycles per subpulse is deduced from that of the corresponding long-duration signal. Costas sequences with closely spaced coincidence locations are shown to produce slightly higher sidelobe levels than Costas sequences with more widely spaced coincidence distributions
Keywords :
correlation theory; frequency agility; radar theory; sonar; Costas arrays; Costas sequences; ambiguity function; coincidence distributions; correlation function; cycles per subpulse; firing orders; frequency hopped radar signals; frequency hopped sonar signals; long-duration signals; range-Doppler coincidence values; short-duration signals; sidelobe levels; Books; Delay; Frequency; Radar; Shape; Signal analysis; Signal generators; Signal resolution; Sonar; Velocity measurement;
Conference_Titel :
Southeastcon '89. Proceedings. Energy and Information Technologies in the Southeast., IEEE
Conference_Location :
Columbia, SC
DOI :
10.1109/SECON.1989.132326
