Title :
A New Approach for Simultaneous Range Measurement and Doppler Estimation
Author :
Duan, Jun-Qi ; He, Zi-Shu ; Qin, Ling
Author_Institution :
Dept. of Electron. Eng., Univ. of Electron. Sci. & Technol. of China, Chengdu
fDate :
7/1/2008 12:00:00 AM
Abstract :
To circumvent the dilemma of range and Doppler ambiguity in the conventional pulsed Doppler radars, a stepped time interval pulse train (STIPT) scheme is proposed in this letter. The STIPT approach eliminates range and Doppler ambiguities by setting the pulse interval difference appropriately. The range sidelobes are removed through a modified aperiodic correlation algorithm. Furthermore, the fast Fourier transform can be used in the Doppler processing. Consequently, the newly proposed approach can be applied to the conventional pulsed radar systems.
Keywords :
Doppler radar; fast Fourier transforms; geophysical signal processing; geophysical techniques; radar signal processing; remote sensing by radar; Doppler ambiguity; Doppler estimation; Doppler processing; STIPT; fast Fourier transform; modified aperiodic correlation algorithm; pulse interval difference; pulsed Doppler radar; range ambiguity; range sidelobe removal; simultaneous range measurement; stepped time interval pulse train; Pulsed Doppler (PD) radar; radar distance measurement; radar resolution; radar velocity measurement;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2008.923210
