Title :
Modified stepped-frequency train of LFM pulses
Author :
Liu, Zhen ; Deng, Bin ; Wei, Xizhang
Author_Institution :
Sch. of Electron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha
Abstract :
A new modified signal - the stepped-frequency train of LFM pulses with modulation of MPS (minimum peak sidelobe) biphasic coding and Costas frequency coding is proposed, whose spectrum function and ambiguity function are deduced respectively. Then the processing measure of the ranging system is illustrated in detail and the principle of the measure is analyzed. Range and velocity estimation of the target are resolved and how to form HRRP (high-resolution range profile) is exhibited. Finally, the resolution and ambiguity characteristics are studied. Research shows that the new modified ranging system is feasible and has advantageous performance.
Keywords :
encoding; radar signal processing; Costas frequency coding; LFM pulses; ambiguity function; high-resolution range profile; minimum peak sidelobe biphasic coding; modified stepped-frequency train; pseudorandom code; range estimation; spectrum function; velocity estimation; Automation; Bandwidth; Chirp modulation; Doppler radar; Fourier transforms; Frequency; Gratings; Modulation coding; Pulse modulation; Signal resolution; Ambiguity Function (AF); Costas; LFM; Pseudo-random Code; Step-Frequency;
Conference_Titel :
Information and Automation, 2008. ICIA 2008. International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-2183-1
Electronic_ISBN :
978-1-4244-2184-8
DOI :
10.1109/ICINFA.2008.4608170
