Title :
A modified discrete chirp-Fourier transform scheme
Author :
Fan, Pingyi ; Xia, Xiang-Gen
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing, China
Abstract :
The discrete chirp-Fourier transform (DCFT) proposed in Xia, can be used to detect both the linear frequencies and the frequency varying rate (chirp rate) at the same time. In this paper, we present a modified DCFT (MDCFT) scheme; some properties similar to DCFT in Xia are also studied. Compared to the DCFT in Xia, theoretical and simulation results have shown that the MDCFT can further improve the resolution of chirp rate of the detected signals. The study is of particular use in radar signal processing
Keywords :
chirp modulation; discrete Fourier transforms; radar resolution; radar signal processing; signal detection; DCFT; MDCFT; chirp rate; detected signals; frequency varying rate; linear frequencies; modified DCFT; modified discrete chirp-Fourier transform scheme; radar signal processing; resolution; Chirp; Digital communication; Discrete Fourier transforms; Discrete transforms; Fourier transforms; Frequency; Radar detection; Signal detection; Signal processing; Signal resolution;
Conference_Titel :
Signal Processing Proceedings, 2000. WCCC-ICSP 2000. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
0-7803-5747-7
DOI :
10.1109/ICOSP.2000.894443
