| 引用本文: | 李文臣,王雪松,王国玉.机动目标一维距离像RAT法线性化补偿.[J].国防科技大学学报,2008,30(5):38-42.[点击复制] |
| LI Wenchen,WANG Xuesong,WANG Guoyu.Linear Compensation of Range Profile of Maneuvering Target via Radon-ambiguity Transform (RAT)[J].Journal of National University of Defense Technology,2008,30(5):38-42[点击复制] |
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| 机动目标一维距离像RAT法线性化补偿 |
| 李文臣, 王雪松, 王国玉 |
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(国防科技大学 电子科学与工程学院，湖南 长沙 410073)
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| 摘要: |
| 研究了机动目标宽带线性调频脉冲回波全去斜率信号模型，根据速度和加速度的调频频谱展宽特点，提出了机动目标宽带一维距离像线性化调频回波模型，给出了Radon模糊图转换(RAT)法线性参数估计与运动补偿方法，并进一步分析了测速和测距误差。仿真实验验证了RAT法一维距离像线性化参数估计与补偿，表明该方法很好地解决了运动参数未知情况下机动目标的一维距离像频谱展宽问题。 |
| 关键词: 机动目标 一维距离像 线性化补偿 Radon模糊图转换(RAT) |
| DOI： |
| 投稿日期：2008-01-16 |
| 基金项目:国家自然科学基金项目(60672033)；国家部委资助项目(51309060305) |
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| Linear Compensation of Range Profile of Maneuvering Target via Radon-ambiguity Transform (RAT) |
| LI Wenchen, WANG Xuesong, WANG Guoyu |
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(College of Electronic Science and Engineering, National Univ. of Defense Technology， Changsha 410073, China)
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| Abstract: |
| The wide-band LFM pulse de-chirp return signals model of maneuvering target is studied. Based on the spectral expansion characteristics of the velocity and acceleration's frequency modulation, a novel linear frequency modulation(FM) return signals model of wide-band range profile of maneuvering target is proposed. Linear parameter estimation and compensation of range profile via Radon-ambiguity transform (RAT) is presented, and the measurement errors of range and velocity are analyzed. The simulation results validate linear compensation model via RAT, indicating that this method can resolve the range profile spectral expansion of maneuvering target unknown motion parameters. |
| Keywords: maneuvering target range profile linear compensation radon-ambiguity transform (RAT) |
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