伪码调相脉冲多普勒复合探测信号处理技术研究
摘要
伪码调相脉冲多普勒复合引信综合了伪码体制和脉冲多普勒体制二者的优点,是一种既能定距,又能测速的引信系统。它利用伪码脉冲复合信号的自相关特性对目标进行定距,同时利用多普勒频率实现对目标的速度识别,从而完成对目标距离速度信息的双重识别,增强引信工作的可靠性。本文的内容主要包括以下几个方面:
1介绍伪码调相脉冲多普勒复合引信的工作原理,然后利用仿真集成环境Simulink搭建了系统仿真框图,对系统的各个部分进行了详细的仿真分析;并编写代码用MATLAB对部分信号进行详细的仿真分析,在此基础上对多普勒频率的提取方法进行研究。
2介绍锁相环频率合成技术,并以ADF4360-0为中心,完成了本系统频率源的设计。
3利用ISE6.2b软件和XILINX公司的XC95144CPLD完成了m序列伪码信号发生器、开关控制程序和m序列伪码数字相关器的设计和调试,并利用Modelsim软件对程序进行了仿真。
4介绍ADI公司生产的调制芯片AD8349,并以AD8349为主要模块完成了调制电路的设计:介绍并利用解调芯片AD8347完成了解调电路的设计。
5最后,根据引信工作的现实环境,对系统进行了抗干扰性能分析。
Pseudo-code phase-modulation pulse Doppler combined fuze integrates the advantages of fuze of pseudo-code system and phase-modulation pulse Doppler system, which is a fuze system that can not only measure the distance, but also measure the speed.It utilizes the autocorrelation function characteristics of the pseudo-code pulse combined signal to measure the distance of the objective, and also utilizes Doppler frequency to realize the speed recognition of the objective, so as to realize the dual recognition for the objective distance and speed and strengthen the reliability of the work. The following contents are mainly included in this text:
1. The operating principle of the pseudo-code pulse combined signal is introduced, and then the simulation integration environment Simulink is used to establish the system simulation block diagram to analyze each part of the system in details; the codes are prepared, and then MATLAB is used to perform the simulation analysis for some signals in details. Extract method for Doppler frequency is researched on such basis.
2. Phase locked loop frequency synthesis technique is introduced. The design of frequency source of this system is completed by taking ADF4360-0 as the center.
3. ISE6.2b software and XC95144CPLD of XILINX Company are used to complete the design and commissioning of m-sequence pseudo-code signal generator, switch control procedure and m-sequence pseudo-code digital correlator. Modelsim software is utilized to emulate the procedure.
4. The modulation chip AD8349 produced by ADI is introduced, which is used as the main module to complete the design of modulation circuit; the demodulation chip AD8347 is introduced and utilized to complete the design of demodulation circuit.
5. At last, anti-interference property of the system has been analyzed according to the actual working conditions of the fuze.
1介绍伪码调相脉冲多普勒复合引信的工作原理,然后利用仿真集成环境Simulink搭建了系统仿真框图,对系统的各个部分进行了详细的仿真分析;并编写代码用MATLAB对部分信号进行详细的仿真分析,在此基础上对多普勒频率的提取方法进行研究。
2介绍锁相环频率合成技术,并以ADF4360-0为中心,完成了本系统频率源的设计。
3利用ISE6.2b软件和XILINX公司的XC95144CPLD完成了m序列伪码信号发生器、开关控制程序和m序列伪码数字相关器的设计和调试,并利用Modelsim软件对程序进行了仿真。
4介绍ADI公司生产的调制芯片AD8349,并以AD8349为主要模块完成了调制电路的设计:介绍并利用解调芯片AD8347完成了解调电路的设计。
5最后,根据引信工作的现实环境,对系统进行了抗干扰性能分析。
Pseudo-code phase-modulation pulse Doppler combined fuze integrates the advantages of fuze of pseudo-code system and phase-modulation pulse Doppler system, which is a fuze system that can not only measure the distance, but also measure the speed.It utilizes the autocorrelation function characteristics of the pseudo-code pulse combined signal to measure the distance of the objective, and also utilizes Doppler frequency to realize the speed recognition of the objective, so as to realize the dual recognition for the objective distance and speed and strengthen the reliability of the work. The following contents are mainly included in this text:
1. The operating principle of the pseudo-code pulse combined signal is introduced, and then the simulation integration environment Simulink is used to establish the system simulation block diagram to analyze each part of the system in details; the codes are prepared, and then MATLAB is used to perform the simulation analysis for some signals in details. Extract method for Doppler frequency is researched on such basis.
2. Phase locked loop frequency synthesis technique is introduced. The design of frequency source of this system is completed by taking ADF4360-0 as the center.
3. ISE6.2b software and XC95144CPLD of XILINX Company are used to complete the design and commissioning of m-sequence pseudo-code signal generator, switch control procedure and m-sequence pseudo-code digital correlator. Modelsim software is utilized to emulate the procedure.
4. The modulation chip AD8349 produced by ADI is introduced, which is used as the main module to complete the design of modulation circuit; the demodulation chip AD8347 is introduced and utilized to complete the design of demodulation circuit.
5. At last, anti-interference property of the system has been analyzed according to the actual working conditions of the fuze.
引文
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[2]张玉.无线电引信设计原理.南京:华东工学院,1988
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[10]黄志强.Xilinx可编程逻辑器件的应用于设计.北京:机械工业出版社,2007
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[23]李颖.Simulink动态系统建模与仿真基础.西安:西安科技大学出版社.2004
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[32]段飚.CPLD在雷达测距机中的应用.航空计算技术.No.2;2001;20-23
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[36]甄军红.AD9708及其在数据采集系统中的应用.电子世界.No.11;2004;44-45
[37]任光亮,邹金龙.伪码精确定距技术研究.现代引信.No.4;1998;14-18
[38]Behzad Razavi.Design Considerations for Direct-Conversion Receivers.IEEE Transactions on Circuits and Systems-Ⅱ:Analog and Digital Signal Processing,1997(6):428-435
[39]Analog Device Integrated Products TxDAC D/A Converter AD9708 Data Sheet
[40]Analog Device Integrated Products Quadrature Modulator AD8349 Data Sheet
[41]Analog Device Integrated Products Quadrature Demodulator AD8347 Data Sheet
[42]Analog Device Integrated Products PLL Frequency Synthesizer ADF4360-0 Data sheet
[43]Analog Device INC.ADF4360-0 Integrated Synthesizer and VCO[M].Norwood:Analog Devices,2004
[44]Analog Device Integrated Products RF Gain Block AD8353 Data Sheet
[45]Xilinx公司.XC95144 In-System Programmable CPDL.2003:1-8
[46]Embedded Instrumentation Using XC9500 CPLD.Xilinx Incorporation San Jose USA,2001
[47]Maxim Integrated Products Signal-Supply Op Amps MAX4416 Data Sheet
[48]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
[49]谢武涛.伪码定距信号处理技术研究[硕士论文].南京:南京理工大学,2003
[50]唐永年等.m序列信号0/π调相的分析及应用.电子对抗技术.Vol.16.NO.3.2001
[51]赵惠昌.无线电引信干扰与抗干扰数字仿真技术研究[博士论文].南京:南京理工大学,2000
[52]朱晓华.脉位调制脉冲串雷达信号理论与应用研究[博士论文].南京:南京理工大学,2002
[53]刘芳.干扰与抗干扰技术研究.大众科技.No.6;2008;58-59
[54]胡泽宾,赵惠昌.伪随机码调相引信干扰及硬件实现.兵工学报.No.5:2006:811-816
[55]邓建平,赵惠昌.PRPPM-PRBC复合引信抗线性调频干扰性能分析.宇航学报.No4;2008;1425-1429
[56]杨丽.噪声调频雷达的数字化研究[硕士论文].南京:南京理工大学,2007
[2]张玉.无线电引信设计原理.南京:华东工学院,1988
[3]崔占忠,宋世和.近感引信原理.北京:北京理工大学出版社,1997
[4]臧立君,李兴国.无线电引信电路设计原理.北京:兵器工业部教材编审室,1986
[5]张玉峥.进炸引信设计原理.第一版.北京:北京理工大学出版社,1996
[6]许建中.无线电近感系统.南京理工大学,2000
[7]王广君等.EDA技术及应用.武汉:华中科技大学出版社,2008
[8]张健等.EDA技术与应用.北京:科学出版社,2008
[9]包明.EDA技术与可编程器件的应用.北京:北京航空航天大学出版社,2007
[10]黄志强.Xilinx可编程逻辑器件的应用于设计.北京:机械工业出版社,2007
[11]姜雪松等.可编程逻辑器件和EDA技术.北京:机械工业出版社,2006
[12]赵惠昌,张淑宁.电子对抗理论与方法.南京:南京理工大学,2006
[13]朱世鸿.可编程逻辑器件PLD实用设计技术.北京:电子工业出版社,1994
[14]李冬梅.PLD器件与EDA技术.北京:北京广播学院出版社,2000
[15]罗朝霞.CPLD/FPGA设计及应用.北京:人民邮电出版社,2007
[16]罗苑棠.CPLD/FPGA常用模块与综合系统设计实例精讲.北京:电子工业出版社,2007
[17]夏官云.伪码调相定距系统应用技术研究[硕士论文].2007
[18]袁志.伪码调相测距技术[硕士论文].2007
[19]Damian F.Albanese;Albert M.Klein;Pseudorandom Code Waveform Design for CW Radar.IEEE Transactions on Aerospace and Electronic Systems.15(1),1979:67-75
[20]Lin,C.T.On the Ambiguity Function of Random Binary-Phase-Coded Waveforms.IEEE Transaction on Aerospace and Electronic Systems,21(3),1985:432-436
[21]姚俊.Simulink建模与仿真.西安:西安电子科技大学出版社.2002
[22]李贺冰.Simulink通信仿真教程.北京:国防工业出版社.2006
[23]李颖.Simulink动态系统建模与仿真基础.西安:西安科技大学出版社.2004
[24]高光天.ADI产品技术指南.北京:科学出版社.1997
[25]Dean Banerjee.Loop Filter Optimization.National emiconductor,2003
[26]Dean Banerjee.PLL Performance,Simulation and Design.National Semiconductor,2003
[27]陈世伟.锁相环路原理及应用.北京:兵器工业出版社,1990
[28]张冠白.锁相与频率合成.北京:电子工业出版社,1995
[29]赵彦芬.频率合成器环路滤波器的设计.无线电工程.No.4,2006,39-41
[30]恽小华.现代频率合成技术综述.电子学报.No.10,1995,148-151
[32]段飚.CPLD在雷达测距机中的应用.航空计算技术.No.2;2001;20-23
[33]吴先用,邹学玉.一种m序列发生器的产生办法.测控技术.No.9;2003;56-59
[34]衷诚敏.伪码调相引信的伪随机信号源研究.制导与引信.No.5:2006;14-18
[35]张欣盛,曹丽娜.锁相与频率合成技术.成都:电子科技大学出版社,1995
[36]甄军红.AD9708及其在数据采集系统中的应用.电子世界.No.11;2004;44-45
[37]任光亮,邹金龙.伪码精确定距技术研究.现代引信.No.4;1998;14-18
[38]Behzad Razavi.Design Considerations for Direct-Conversion Receivers.IEEE Transactions on Circuits and Systems-Ⅱ:Analog and Digital Signal Processing,1997(6):428-435
[39]Analog Device Integrated Products TxDAC D/A Converter AD9708 Data Sheet
[40]Analog Device Integrated Products Quadrature Modulator AD8349 Data Sheet
[41]Analog Device Integrated Products Quadrature Demodulator AD8347 Data Sheet
[42]Analog Device Integrated Products PLL Frequency Synthesizer ADF4360-0 Data sheet
[43]Analog Device INC.ADF4360-0 Integrated Synthesizer and VCO[M].Norwood:Analog Devices,2004
[44]Analog Device Integrated Products RF Gain Block AD8353 Data Sheet
[45]Xilinx公司.XC95144 In-System Programmable CPDL.2003:1-8
[46]Embedded Instrumentation Using XC9500 CPLD.Xilinx Incorporation San Jose USA,2001
[47]Maxim Integrated Products Signal-Supply Op Amps MAX4416 Data Sheet
[48]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
[49]谢武涛.伪码定距信号处理技术研究[硕士论文].南京:南京理工大学,2003
[50]唐永年等.m序列信号0/π调相的分析及应用.电子对抗技术.Vol.16.NO.3.2001
[51]赵惠昌.无线电引信干扰与抗干扰数字仿真技术研究[博士论文].南京:南京理工大学,2000
[52]朱晓华.脉位调制脉冲串雷达信号理论与应用研究[博士论文].南京:南京理工大学,2002
[53]刘芳.干扰与抗干扰技术研究.大众科技.No.6;2008;58-59
[54]胡泽宾,赵惠昌.伪随机码调相引信干扰及硬件实现.兵工学报.No.5:2006:811-816
[55]邓建平,赵惠昌.PRPPM-PRBC复合引信抗线性调频干扰性能分析.宇航学报.No4;2008;1425-1429
[56]杨丽.噪声调频雷达的数字化研究[硕士论文].南京:南京理工大学,2007