| 基于CDMA导频信号的动目标探测方法 |
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| 引用本文： | 龚巧,朱润. 基于CDMA导频信号的动目标探测方法[J]. 数字通信, 2010, 37(1): 61-65 |
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| 作者姓名： | 龚巧 朱润 |
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| 作者单位： | 1. 重庆大学,通信工程学院,重庆,400044;重庆星熠导航设备有限公司,重庆,400015
2. 重庆邮电大学,通信与信息工程学院,重庆,400065;重庆星熠导航设备有限公司,重庆,400015 |
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| 摘 要： | 论述了一种利用CDMA下行导频信号进行动目标探测的方法。根据CDMA导频信号良好的无源探测性能，通过在时频域内对实时数据进行长时间相干已积累来提取目标信息，给出了一个基于单接收机的实验系统，并通过该系统完成了动目标的多普勒频率和距离检测。实验结果证明了CDMA信号用作无源探测是可行的。
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| 关 键 词： | CDMA下行 导频信号 无源探测 多普勒频 外辐射源 长时间相干积累 |
A moving target detection scheme based on CDMA pilot signals |
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| GONG Qiao,ZHU Run. A moving target detection scheme based on CDMA pilot signals[J]. Digital Communication, 2010, 37(1): 61-65 |
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| Authors: | GONG Qiao ZHU Run |
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| Affiliation: | GONG Qiao1,3,ZHU Run2,3(1.College of Communication Engineering,Chongqing University,Chongqing 400044,P.R.China,2.College of Communication , Information Engineering,Chongqing University of Posts , Telecommunications,Chongqing 400065,3.Chongqing Startnav Systems Corporation Limited,Chongqing 400015,P.R.China) |
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| Abstract: | This paper discusses a moving targets detection method by utilizing CDMA pilot signals.According to the good detection performance of pilot signals,the scheme abstracting information about the appearing objects by long-time accumulation of coherent processing the real-time data in time-frequency domain was adopted.An experimental system based on a single receiver was proposed,and the Doppler frequency and distance detection of moving targets were accomplished by this system.The experimental results demonstr... |
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| Keywords: | CDMA downlink pilot signal passive detection Doppler frequency opportunity transmitter long-time coherent accumulation |
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