|Table of Contents|

Calculation of LFM pulse fuze signal’s ambiguity function and its parameters extraction based on DSP

《南京理工大学学报》(自然科学版)[ISSN:1005-9830/CN:32-1397/N]

Issue:
2013年01期
Page:
70-
Research Field:
Publishing date:

Info

Title:
Calculation of LFM pulse fuze signal’s ambiguity function and its parameters extraction based on DSP
Author(s):
Chen SiZhao Huichang
Department of Electronic Engineering and Optoelectronic Technology,NUST,Nanjing 210094,China
Keywords:
fuzeslinear frequency modulation pulse signalsambiguity functiondigital signal processors
PACS:
TJ434.1
DOI:
-
Abstract:
To improve the jamming performance of a fuze jammer,this paper proposes a method of linear frequency modulation pulse fuze signal’s parameters extraction based on ambiguity function and its implementation by digital signal processor.Firstly,twodimensional autocorrelation transformation is done for the received signal,namely calculating the signal’s ambiguity function,then according to the characteristics of signal itself,the modulation parameters are extracted by ambiguity function.The whole system is based on TMS320-C6416 chip produced by Texas Instruments.The simulation results show that the method which needs no prior information can not only extract the parameters effectively and accurately,but also have a good antinoise performance.The test results prove that the system has high reliability and realtime performance.

References:

[1]Stove A G.Liner FMCW radar techniques[J].IEEE Proceedings-F,1992,139(5):343-350.
[2]刘静,赵惠昌,高振儒.基于QMFBT的LFMCW引信信号识别[J].南京理工大学学报,2011,35(1):97-101. Liu Jing,Zhao Huichang,Gao Zhenru.Recognition of LFMCW fuze signal based on QMFBT[J].Journal of Nanjing University of Science and Technology,2011,35(1):97-101.
[3]吴礼,彭树生,肖泽龙,等.对称三角线性调频连续波雷达信号多周期模糊函数分析[J].南京理工大学学报,2009,33(1):74-78. Wu Li,Peng Shusheng,Xiao Zelong,et al.Multiperiod ambiguity function analysis of symmetrical triangle linear frequency modulation continuous wave signals[J].Journal of Nanjing University of Science and Technology,2009,33(1):74-78.
[4]金胜,王峰,邓振淼,等.一种LFM信号相位域快速高精度参数估计算法[J].系统工程与电子技术,2011,33(2):264-267. Jin Sheng,Wang Feng,Deng Zhenmiao,et al.Fast and accurate estimator on parameters of chip signals in phase domain[J].Systems Engineering and Electronics,2011,33(2):264-267.
[5]刘静,赵惠昌,周新刚,等.基于模糊函数的无线电引信信号参数提取[J].探测与控制学报,2009,31(5):42-47. Liu Jing,Zhao Huichang,Zhou Xingang,et al.Parameter extraction of LFMCW fuze signal based on periodic ambiguity function[J].Journal of Detection and Control,2009,31(5):42-47.
[6]Texas Instruments Corporation.TMS320C64X DSP Library Programmer’s Reference[EB/OL].http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=spru565&track=no,2003-10-20.
[7]Texas Instruments Corporation.TMS320C6000 Chip Support Library API Reference Guide[EB/OL].http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=spru401&track=no,2004-8-15.
[8]Mark A G,Li H B.Complex,aperiodic random signal modulation on pulse LFM chirp radar waveform[A].Radar Sensor Technology XIV[C].Orlando,USA:Proceedings of SPIE,2010:1-11.
[9]周新刚,赵惠昌,高振儒.“LFMCW雷达信号多周期模糊函数分析”再研究[J].南京理工大学学报,2010,34(5):624-627. Zhou Xingang,Zhao Huichang,Liu Jing.Comment on “Multiperiod ambiguity function of LFMCW radar signal”[J].Journal of Nanjing University of Science and Technology,2010,34(5):624-627.
[10]丁孝勇,冯克明,黄培康.低杂散复杂线性调频的实现[J].系统工程与电子技术,2006,28(4):501-504. Ding Xiaoyong,Feng Keming,Huang Peikang.Approach to the lower spurs and complex LFM based on FPGA and NCO[J].Systems Engineering and Electronics,2006,28(4):501-504.
[11]李师波,赵建中,吴文.3 mm线性调频源线性度实时数字校正技术研究[J].南京理工大学学报,2005,29(2):166-177. Li Shibo,Zhao Jianzhong,Wu Wen.Digital realtime correction algorithm of linearity for 3 mm linear frequency modulated source[J].Journal of Nanjing University of Science and Technology,2005,29(2):166-177.
[12]杨菲,刘建新,杨陈.基于DDS的一种复合雷达波形的产生及实现方法[J].信息与电子工程,2009,7(6):525-528. Yang Fei,Liu Jianxin,Yang Chen.Generation and realization of a special radar signal based on DDS[J].Information and Electronic Engineering,2009,7(6):525-528.

Memo

Memo:
-
Last Update: 2013-02-15