Title :
Doppler frequency extraction and estimation of range and speed of moving target
Author_Institution :
Dept. of Electron. Eng., Beijing Inst. of Technol., Beijing
Abstract :
This paper presents a novel Doppler frequency extraction method based on radar signal and a range and speed estimation method of moving target based on the extracted Doppler frequency. The Doppler frequency of a moving target represents the moving characteristics of the target, the dechirp technique and FFT is combined to estimate the Doppler frequency from the non-stationary radar signal, then non-linear least square optimization method is used to estimate the range and speed of the target. The experimental results show the efficiency of the proposed method.
Keywords :
fast Fourier transforms; feature extraction; least squares approximations; nonlinear equations; optimisation; radar signal processing; Doppler frequency extraction; FFT; dechirp technique; moving target method; nonlinear least square optimization method; nonstationary radar signal; speed estimation method; Chirp; Data mining; Doppler radar; Frequency domain analysis; Frequency estimation; Frequency measurement; Image processing; Least squares approximation; Optimization methods; Parameter estimation;
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.2008.4697690
