伪码调相线性调频复合引信调制技术研究
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摘要
由于伪码信号的多普勒敏感性,伪码调相连续波体制引信在弹目接近速度较大时定距性能大大降低,减少了伪码调相引信的应用范围。
伪码调相线性调频复合引信是通过对回波信号的延时伪码做相关处理实现对目标的定距,利用回波信号中的差频信号降低多普勒效应的影响,并提取多普勒信号实现对目标的测速。
本文在对伪码调相线性调频复合引信的工作原理详细分析的基础上,讨论了复合引信的性能,确定了复合引信各个参数选取的原则。分析了复合引信回波信号的时频域波形,使用Matlab软件仿真了回波信号的相关接收处理,分析了复合引信信号的抗干扰性能和抗噪声性能。讨论了复合引信调制部分的电路设计,使用XC95144XL型CPLD的产生伪码信号和控制DDS芯片产生锯齿波调频信号,并利用ModelSim软件对DDS与CPLD之间的串口数据传输进行了仿真;仿真设计了DDS输出所需的带通滤波器。使用锁相频率合成芯片ADF4360-1实现频率源,最后利用AD8349完成复合引信调制信号的产生。
Because of the Doppler sensitivity of Pseudo-random code, the ranging ability of Pseudo_random code phase modulation fuse is significantly reduced when the speed between the bomb and the target is high. Therefore, the application of Pseudorandom code phase modulation fuse is limited.
The ranging of Pseudo-random code phase modulation combined with linear frequency modulation fuze is achieved by correlating the echo from the target using the delayed Pseudorandom code, and the velocity is measured using the difference frequency signal which is also can reduce the impact of Doppler effect.
In this paper, the operating principle of the complex modulation fuze using pseudo random code phase modulation and linear frequency modulation is introduced in detail, and then the performance and the principle of parameters selection of the complex modulation fuze are discussed. In addition ,time-frequency domains of target echo signal is analyzed,and then the process of target echo signal is simulated by using the software Matlab. Besides, anti-interference performance and anti-noise performance of the complex modulation fuze is analyzed,and then the modulation circuit of the complex modulation fuze is designed. Moreover,by using the CPLD chip XC95144XL pseudo-code signals and the control signal of DDS chips AD9852 which supply sawtooth FM signal is produced. Furthermore ,by using the software ModelSim serial communication between DDS and CPLD is simulated,and then the bandpass filter for the DDS output is designed. Finally,by using ADF4360-1 chip the carrier wave is produced, and then By using AD8349 the transmitting signal of the complex modulation fuze is realized.
伪码调相线性调频复合引信是通过对回波信号的延时伪码做相关处理实现对目标的定距,利用回波信号中的差频信号降低多普勒效应的影响,并提取多普勒信号实现对目标的测速。
本文在对伪码调相线性调频复合引信的工作原理详细分析的基础上,讨论了复合引信的性能,确定了复合引信各个参数选取的原则。分析了复合引信回波信号的时频域波形,使用Matlab软件仿真了回波信号的相关接收处理,分析了复合引信信号的抗干扰性能和抗噪声性能。讨论了复合引信调制部分的电路设计,使用XC95144XL型CPLD的产生伪码信号和控制DDS芯片产生锯齿波调频信号,并利用ModelSim软件对DDS与CPLD之间的串口数据传输进行了仿真;仿真设计了DDS输出所需的带通滤波器。使用锁相频率合成芯片ADF4360-1实现频率源,最后利用AD8349完成复合引信调制信号的产生。
Because of the Doppler sensitivity of Pseudo-random code, the ranging ability of Pseudo_random code phase modulation fuse is significantly reduced when the speed between the bomb and the target is high. Therefore, the application of Pseudorandom code phase modulation fuse is limited.
The ranging of Pseudo-random code phase modulation combined with linear frequency modulation fuze is achieved by correlating the echo from the target using the delayed Pseudorandom code, and the velocity is measured using the difference frequency signal which is also can reduce the impact of Doppler effect.
In this paper, the operating principle of the complex modulation fuze using pseudo random code phase modulation and linear frequency modulation is introduced in detail, and then the performance and the principle of parameters selection of the complex modulation fuze are discussed. In addition ,time-frequency domains of target echo signal is analyzed,and then the process of target echo signal is simulated by using the software Matlab. Besides, anti-interference performance and anti-noise performance of the complex modulation fuze is analyzed,and then the modulation circuit of the complex modulation fuze is designed. Moreover,by using the CPLD chip XC95144XL pseudo-code signals and the control signal of DDS chips AD9852 which supply sawtooth FM signal is produced. Furthermore ,by using the software ModelSim serial communication between DDS and CPLD is simulated,and then the bandpass filter for the DDS output is designed. Finally,by using ADF4360-1 chip the carrier wave is produced, and then By using AD8349 the transmitting signal of the complex modulation fuze is realized.
引文
[1]余叔涵.无线电引信原理.北京:国防工业出版社,1982.
[2]许建中.无线电近感系统.南京:南京理工大学,2000.
[3]崔占忠,宋世和.近感引信原理.第一版.北京:北京理工大学出版社,1998.
[4]张清泰.无线电引信总体设计原理.北京:国防工业出版社,1985.
[5]张玉诤.近炸引信设计原理.第一版.北京:北京理工大学出版社,1996.
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[7]赵惠昌.电子对抗理论与方法.南京:南京理工大学,2006.
[8]樊昌信.通信原理.第五版.北京:国防工业出版社,2001.
[9]程佩青 数字信号处理教程.第二版.北京:清华大学出版社,2004.
[10]丁鹭飞,耿富录.雷达原理.第三版.西安:西安电子科技大学出版社,2002.
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[18]徐志军,徐光辉.CPLD/FPGA的开发与应用.电子工业出版社.2002.1.
[19]刘灵,胡永生.数字信号处理的FPGA实现.清华大学出版社,2003.
[20]阎石.数字电子技术基础 第四版 北京:高等教育出版社 2003.
[21]高光天.ADI产品技术指南.北京:科学出版社,1997.
[22]童诗白,华成英.模拟电子技术基础.第三版.北京:高等教育出版社,2001.
[23]丁土圻.模拟滤波器.哈尔滨:哈尔滨工程大学出版社,2004.
[24]黄书伟,卢申林.印制电路板的可靠性设计.北京:国防工业出版社,2004.
[25]郝晓勤,徐益初.线性调频信号的多普勒频移范围研究.测控技术.2005(6):8-9.
[26]白钰鹏,郝新红.无线电引信信号处理电路的抗干扰研究.制导与引信.2002(1):26-29.
[27]张亮,李亚光.基于AD8349的无线直接变频发射机设计与实现.国外电子器件.2005(10):4-7.
[28]衷诚敏.伪码调相引信的伪随机信号源研究.制导与引信.2005(6):14-18.
[29]吴先用,邹学玉.一种m序列发生器的产生办法.测控技术.2003(9):56-59.
[30]张居正.伪随机码调相引信原理与设计.制导与引信.2003(3):1-7.
[31]石小明,申小中.一种简易高精度频率信号发生器的设计与实现.现代电子技术.2006(10):14-16.
[32]马岸英.调频无线电引信回波模拟器.制导与引信.2005(1):16-19.
[33]窦林涛,程健庆.基于Matlab的雷达信号处理系统仿真.指挥控制与仿真.2006(2):78-82.
[34]刘己斌,赵惠昌,路建伟.几种伪码体制引信的抗噪声性能分析.兵工学报,2005,26(1):20-26.
[35]胡泽宾,赵惠昌,孙魏.伪码调相与正弦调幅复合引信.电子与信息学报,2005,27(8).
[36]肖金球,潘敬熙.CPLD在数字频率测量中的应用.微计算机信息.2005(10):111-112.
[37]殷国平,曹旭平,崔占忠.伪码调相与线性调频复合调制信号探测性能研究.弹箭与制导学报.2007 27(2):280-282.
[38]殷国平,曹旭平,崔占忠.伪码调相与线性调频复合引信抗干扰及多普勒容限性能研究.探测与控制学报.2006 28(3):35-38.
[39]孙锦涛,齐连宝,盛卫星.伪随机码连续波雷达的作用距离计算.现代雷达,19963:17-26.
[40]Fishbein,Rittenbach.Continuous wave correlation radar system.USP5646627.1978.
[41]Bruce Wallace.Fuzing perspectives.48th Annual Fuze Conference(USA).2004.
[42]Wilhjelm,J.E.AND Pedersen,P.C.FM Doppler systems-experimental results.Ultrasonics Symposium.1990(3):1553-1556.
[43]Peleg,S.AND Porat,B.Linear FM signal parameter estimation from discrete-time observations.Aerospace and Electronic Systems.1991(4):607-616.
[44]艾娜.干扰波形设计[硕士论文].西安:西安电子科技大学,2005.
[45]王李军.伪码定距及数字相关技术研究[硕士论文].南京:南京理工大学,2002.
[46]Analog Device Integrated Products Quadrature Modulator AD8349 Data Sheet.
[47]Analog Device Inc.AD9852-CMOS,300MHz Complete DDS Synthesizer.Technical Data Sheet.
[48]Xilinx Incorporation.XC95144 In-System Programmable CPLD.2006:1-10.
[49]Xilinx Incorporation.Using the XC9500XL Timing Model.2001:1-8.
[50]Analog Device Integrated Products PLL Frequency Synthesizer ADF4360-1 Data sheet
[2]许建中.无线电近感系统.南京:南京理工大学,2000.
[3]崔占忠,宋世和.近感引信原理.第一版.北京:北京理工大学出版社,1998.
[4]张清泰.无线电引信总体设计原理.北京:国防工业出版社,1985.
[5]张玉诤.近炸引信设计原理.第一版.北京:北京理工大学出版社,1996.
[6]臧立君,李兴国.无线电引信电路设计原理.第一版.北京:兵器工业部教材编审室,1986.
[7]赵惠昌.电子对抗理论与方法.南京:南京理工大学,2006.
[8]樊昌信.通信原理.第五版.北京:国防工业出版社,2001.
[9]程佩青 数字信号处理教程.第二版.北京:清华大学出版社,2004.
[10]丁鹭飞,耿富录.雷达原理.第三版.西安:西安电子科技大学出版社,2002.
[11]贾鸿志.雷达信号分析.第二版.南京:南京理工大学,1995.
[12]谢光军.MATLAB 7辅助信号处理技术与应用.北京:电子工业出版社,2005.
[13]聂祥飞,王海宝,谭泽富.Matlab程序设计及其在信号处理中的应用.西南交通大学出版社,2005.
[14]候伯亨,顾新.VHDL硬件描述语言与数字逻辑电路设计.第二版.西安:西安电子科技大学出版社,1997.
[15]王诚,薛小刚.FPGA/CPLD设计工具--Xilinx ISE使用详解.北京:人民邮电出版社,2005.
[16]泽普尼克(Zepernick)(瑞典)(甘良才译),伪随机信号处理--理论与应用.北京:电子工业出版社.2007.
[17]许树声.信号检测与估计.北京:国防工业出版社,1985.
[18]徐志军,徐光辉.CPLD/FPGA的开发与应用.电子工业出版社.2002.1.
[19]刘灵,胡永生.数字信号处理的FPGA实现.清华大学出版社,2003.
[20]阎石.数字电子技术基础 第四版 北京:高等教育出版社 2003.
[21]高光天.ADI产品技术指南.北京:科学出版社,1997.
[22]童诗白,华成英.模拟电子技术基础.第三版.北京:高等教育出版社,2001.
[23]丁土圻.模拟滤波器.哈尔滨:哈尔滨工程大学出版社,2004.
[24]黄书伟,卢申林.印制电路板的可靠性设计.北京:国防工业出版社,2004.
[25]郝晓勤,徐益初.线性调频信号的多普勒频移范围研究.测控技术.2005(6):8-9.
[26]白钰鹏,郝新红.无线电引信信号处理电路的抗干扰研究.制导与引信.2002(1):26-29.
[27]张亮,李亚光.基于AD8349的无线直接变频发射机设计与实现.国外电子器件.2005(10):4-7.
[28]衷诚敏.伪码调相引信的伪随机信号源研究.制导与引信.2005(6):14-18.
[29]吴先用,邹学玉.一种m序列发生器的产生办法.测控技术.2003(9):56-59.
[30]张居正.伪随机码调相引信原理与设计.制导与引信.2003(3):1-7.
[31]石小明,申小中.一种简易高精度频率信号发生器的设计与实现.现代电子技术.2006(10):14-16.
[32]马岸英.调频无线电引信回波模拟器.制导与引信.2005(1):16-19.
[33]窦林涛,程健庆.基于Matlab的雷达信号处理系统仿真.指挥控制与仿真.2006(2):78-82.
[34]刘己斌,赵惠昌,路建伟.几种伪码体制引信的抗噪声性能分析.兵工学报,2005,26(1):20-26.
[35]胡泽宾,赵惠昌,孙魏.伪码调相与正弦调幅复合引信.电子与信息学报,2005,27(8).
[36]肖金球,潘敬熙.CPLD在数字频率测量中的应用.微计算机信息.2005(10):111-112.
[37]殷国平,曹旭平,崔占忠.伪码调相与线性调频复合调制信号探测性能研究.弹箭与制导学报.2007 27(2):280-282.
[38]殷国平,曹旭平,崔占忠.伪码调相与线性调频复合引信抗干扰及多普勒容限性能研究.探测与控制学报.2006 28(3):35-38.
[39]孙锦涛,齐连宝,盛卫星.伪随机码连续波雷达的作用距离计算.现代雷达,19963:17-26.
[40]Fishbein,Rittenbach.Continuous wave correlation radar system.USP5646627.1978.
[41]Bruce Wallace.Fuzing perspectives.48th Annual Fuze Conference(USA).2004.
[42]Wilhjelm,J.E.AND Pedersen,P.C.FM Doppler systems-experimental results.Ultrasonics Symposium.1990(3):1553-1556.
[43]Peleg,S.AND Porat,B.Linear FM signal parameter estimation from discrete-time observations.Aerospace and Electronic Systems.1991(4):607-616.
[44]艾娜.干扰波形设计[硕士论文].西安:西安电子科技大学,2005.
[45]王李军.伪码定距及数字相关技术研究[硕士论文].南京:南京理工大学,2002.
[46]Analog Device Integrated Products Quadrature Modulator AD8349 Data Sheet.
[47]Analog Device Inc.AD9852-CMOS,300MHz Complete DDS Synthesizer.Technical Data Sheet.
[48]Xilinx Incorporation.XC95144 In-System Programmable CPLD.2006:1-10.
[49]Xilinx Incorporation.Using the XC9500XL Timing Model.2001:1-8.
[50]Analog Device Integrated Products PLL Frequency Synthesizer ADF4360-1 Data sheet