Title :
A Parameter Estimation Method for Moving Target in Stepped Frequency Radar
Author :
Liu Lin ; Tian Jin-jun ; Liu Zhao-hui
Author_Institution :
Sch. of Electron. & Inf. Eng., Beihang Univ., Beijing, China
Abstract :
The impact of moving target on the one-dimensional coherent imaging in stepped radar is analyzed in this paper. A cross-correlation-based estimation method of radial velocity is proposed. It is proven by analytical derivation that the cross-correlation analysis on adjacent pulses yields the quantity related to the radial acceleration and velocity of moving target, based on which the radial motion parameters of targets can be precisely estimated. The simulation results demonstrate that this approach can estimate the radial acceleration and velocity with high precision at high signal-to-noise ratio, and compensate for the raw data effectively. As a result, good high-resolution one-dimensional image could be gotten.
Keywords :
image motion analysis; image resolution; parameter estimation; radar imaging; radar resolution; cross-correlation-based estimation method; high-resolution image; one-dimensional coherent imaging; parameter estimation method; radial motion parameters; radial velocity; signal-to-noise ratio; stepped frequency radar; Acceleration; Automation; Doppler radar; Frequency estimation; Image analysis; Motion analysis; Motion estimation; Parameter estimation; Radar imaging; Sampling methods; acceleration; cross-relation; motion parameters; one-dimensional image; stepped-frequency; velocity;
Conference_Titel :
Intelligent Computation Technology and Automation (ICICTA), 2010 International Conference on
Conference_Location :
Changsha
Print_ISBN :
978-1-4244-7279-6
Electronic_ISBN :
978-1-4244-7280-2
DOI :
10.1109/ICICTA.2010.170
