A New LFM-Signal Detector Based on Fractional Fourier Transform

被引：15

作者：

Yin, Zhiping ^{[1
]}

Chen, Weidong ^{[1
]}

机构：

[1] Univ Sci & Technol China, Dept Elect Engn & Informat Sci, Hefei 230027, Anhui, Peoples R China

来源：

EURASIP JOURNAL ON ADVANCES IN SIGNAL PROCESSING | 2010年

基金：

中国博士后科学基金;

关键词：

WIGNER DISTRIBUTION; COMPUTATION;

D O I：

10.1155/2010/876282

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

A new LFM-signal detector formulated by the integration of the 4th-power modulus of the fractional Fourier transform is proposed. It has similar performance to the modulus square detector of Radon-ambiguity transform because of the equivalence relationship between them. But the new detector has much lower computational complexity in the case that the number of the searching angles is far less than the length of the signal. Moreover, it is proved that the new detector can be generalized to the integration of the nth-power (2 < n) modulus of the fractional Fourier transform via mathematical derivation. Computer simulation results have confirmed the effectiveness of the proposed detector in LFM-signal detection.

引用

页数：7

共 19 条

[1]

Fractional convolution and correlation via operator methods and an application to detection of linear FM signals [J].