Title :
Analytical expression of GSM signal ambiguity function
Author :
Xinghao, Zhao ; Ran, Tao ; Yue, Wang
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing
Abstract :
GSM based passive radar utilizes the GSM signal transmitted by GSM base station as an illuminator of opportunity. In this paper, GMSK modulation adopted by GSM signal is analyzed, and analytical expression of GSM signal time-delay and Doppler-shifted ambiguity function are obtained by approximating GMSK to MSK modulation and regarding the symbol sequence as pseudo-random sequence. Finally, the rationality of the approximate method is also verified by the simulations.
Keywords :
Doppler shift; cellular radio; minimum shift keying; passive radar; random sequences; Doppler-shifted ambiguity function; GMSK modulation; GSM base station; GSM signal ambiguity function; passive radar; pseudo-random sequence; symbol sequence; Base stations; Chirp modulation; Digital modulation; Frequency; GSM; Passive radar; Radar detection; Signal analysis; Spaceborne radar; Time division multiple access;
Conference_Titel :
Signal Processing, 2008. ICSP 2008. 9th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-2178-7
Electronic_ISBN :
978-1-4244-2179-4
DOI :
10.1109/ICOSP.2008.4697604
