Title :
Improving Ambiguity Function of Costas signal
Author :
Kasas, Khaola ; Aboulnour, Hassan ; Kawas, Osama
Author_Institution :
Dep. of Electron. & Commun. Eng., Damascus Univ., Damascus, Syria
Abstract :
This paper presents the effects of modifying Costas signal in time and frequency to improve ambiguity function (AF). The effect of adding frequency spacing, linear frequency modulation, constant space time, and variable space time between sub-pulses of Costas signal are presented and compared. It is shown that a considerable reduction of side-lobe and better Doppler resolution is achieved by using variable spacing between sub-pulses of Costas signal.
Keywords :
frequency modulation; signal processing; Costas signal; Doppler resolution; ambiguity function; constant space time; linear frequency modulation; sidelobe reduction; variable space time; Bandwidth; Chirp modulation; Frequency modulation; Matched filters; Pulse measurements; Pulse modulation; Radar detection; Signal resolution; Space technology; Space vector pulse width modulation; Ambiguity Function; Costas signal; Pulse Compression;
Conference_Titel :
Microwave Symposium (MMS), 2009 Mediterrannean
Conference_Location :
Tangiers
Print_ISBN :
978-1-4244-4664-3
Electronic_ISBN :
978-1-4244-4665-0
DOI :
10.1109/MMS.2009.5409830
