| 低速目标运动无补偿频率步进信号参数设计 |
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| 引用本文： | 杨彦利,邓甲昊,吴彩鹏.低速目标运动无补偿频率步进信号参数设计[J].兵工学报,2010,31(6):692-696. |
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| 作者姓名： | 杨彦利 邓甲昊 吴彩鹏 |
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| 作者单位： | 北京理工大学,机电工程与控制国家级重点实验室,北京,100081;北京理工大学,机电工程与控制国家级重点实验室,北京,100081;北京理工大学,机电工程与控制国家级重点实验室,北京,100081 |
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| 摘 要： | 利用频率步进信号可实现距离高分辨,但存在运动补偿问题。考察了速度和加速度共同作用对一维距离像的影响,详细分析了逆离散傅里叶变换(IDFT)引起的离散峰值误差,得到了影响最大无补偿速度和加速度的主要因素。在分析距离分辨率、带宽与最大无补偿速度这一对矛盾的基础上,通过适当的参数设计来提高最大无补偿速度,实现对低速目标的无速度补偿测距。仿真验证了对低速、近距离目标运动无补偿测距的可行性。
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| 关 键 词： | 雷达工程 频率步进 距离徙动 运动补偿 参数设计 |
Design of Stepped Frequency Signal Without Motion Compensation for Low Velocity Targets |
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| YANG Yan-li,DENG Jia-hao,WU Cai-peng.Design of Stepped Frequency Signal Without Motion Compensation for Low Velocity Targets[J].Acta Armamentarii,2010,31(6):692-696. |
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| Authors: | YANG Yan-li DENG Jia-hao WU Cai-peng |
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| Affiliation: | (National Key Laboratory of Mechatronic Engineering & Control, Beijing Institute of Technology, Beijing 100081, China) |
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| Abstract: | Frequency stepping waveforms can be used to obtain high range resolution.However,it needs to perform motion compensation.The influence of velocity and acceleration on one-dimension range profiles was analyzed.And the discrete peak error caused by inverse discrete Fourier transform(IDFT) was discussed in detail.Then,the factors that influence on velocity and acceleration without compensation were obtained.Based on analysis of the contradictions among high range resolution,bandwidth and maximal velocity witho... |
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| Keywords: | radar engineering stepped frequency range walk motion compensation parameter design |
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