Comments on "Discrete Chirp-Fourier transform and its application to chirp rate estimation"

被引:52
作者
Guo, X [1 ]
Sun, HB
Wang, SL
Liu, GS
机构
[1] Nanjing Univ Sci & Technol, Res Ctr Elect Engn Technol, Nanjing, Peoples R China
[2] Nanyang Technol Univ, Sch Elect & Elect Engn, Singapore 2263, Singapore
[3] Nanjing Res Inst Elect Technol, Nanjing, Peoples R China
关键词
Chirp-Fourier transform; chirp rate estimation; picket-fence effect;
D O I
10.1109/TSP.2002.805492
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
This comment points out that the sample rate of the discrete chirp-Fourier transform (DCFT) proposed by Xia is not sufficient to avoid severe "picket-fence" effect and causes some restrictions for its practical applications. By increasing the sample rate and modifying the DCFT definition, a new robust DCFT is proposed.
引用
收藏
页码:3115 / 3115
页数:1
相关论文
共 1 条
[1]   Discrete chirp-Fourier transform and its application to chirp rate estimation [J].
Xia, XG .
IEEE TRANSACTIONS ON SIGNAL PROCESSING, 2000, 48 (11) :3122-3133