| 高分辨一维多普勒像 |
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| 引用本文： | 祝依龙,范红旗,卢再奇.高分辨一维多普勒像[J].雷达科学与技术,2010,8(1):32-36. |
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| 作者姓名： | 祝依龙 范红旗 卢再奇 |
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| 作者单位： | 国防科技大学ATR重点实验室,湖南长沙,410073 |
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| 基金项目： | 国防科技预研跨行业综合技术项目(No.51301050102) |
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| 摘 要： | 雷达可发射频域高分辨信号,如单频连续波信号,从回波信号中估计目标各散射中心的多普勒频移,从频域分辨各散射中心。引入了高分辨一维多普勒像的概念,介绍了高分辨一维多普勒像成像基本原理,理论推导说明高分辨一维多普勒像为目标散射强度分布的横向投影。基于成像公式得到了目标多普勒像分辨率大小,以及不进行非线性相位补偿条件下,成像积累时间内目标转角或积累时间的约束条件,推导了高分辨一维多普勒像不模糊条件对数字采样率的约束,仿真试验验证了理论推导的正确性。
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| 关 键 词： | 雷达成像 高分辨一维多普勒像 多普勒分辨 散射中心 |
One Dimensional High Resolution Doppler Profile |
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| ZHU Yi-long,FAN Hong-qi,LU Zai-qi.One Dimensional High Resolution Doppler Profile[J].Radar Science and Technology,2010,8(1):32-36. |
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| Authors: | ZHU Yi-long FAN Hong-qi LU Zai-qi |
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| Affiliation: | ATR Key Lab/a>;National University of Defense Technology/a>;Changsha 410073/a>;China |
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| Abstract: | High Doppler resolution waveforms can be transmitted by radar systems,e.g.,single frequency continuous wave,and the relative velocities of target scatterers are estimated from the Doppler frequency shift of the return.These scatterers become distinguishable in frequency domain.The concept of one dimensional high resolution Doppler profile(HRDP) is introduced.The principle of HRDP is presented,and it is shown that the HRDP is the projection of target scattering distribution along the cross range orientation.... |
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| Keywords: | radar imaging one dimensional high resolution Doppler profile Doppler resolution scatterer |
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