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| 机动目标径向加速度估计方法研究 | |
| 引用本文： | 胡世安,马东柏,王静,王锦章.机动目标径向加速度估计方法研究[J].无线电工程,2009,39(6):23-25. |
| 作者姓名： | 胡世安 马东柏 王静 王锦章 |
| 作者单位： | 1. 中国人民解放军91635部队,北京,102249 2. 海军装备部天津军事代表局,北京,100079 3. 驻北京铁路局军代处,北京,100005 |
| 摘 要： | 对于固定载频发射脉冲,机动目标加速度将引回波信号二次相位变化,此时的回波属于典型的非平稳信号,该信号使用传统的傅里叶变换无法有效进行处理。采用分数傅里叶变换的方法对一个脉冲回波信号进行分析,利用复变数学的相关知识,定量推导了分数变换域峰值和脉冲宽度的正比关系。以此为基础分析了能测得加速度需要的最短脉冲宽度与信噪比的关系,最后对无噪声和有噪声2种情况进行了仿真验证。 |
| 关 键 词： | 径向加速度 分数傅里叶变换 估计 |
Research on Estimation Method of Radial Acceleration of Maneuvering Target |
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| HU Shi-an,MA Dong-bai,WANG Jing,WANG Jin-zhang.Research on Estimation Method of Radial Acceleration of Maneuvering Target[J].Radio Engineering of China,2009,39(6):23-25. | |
| Authors: | HU Shi-an MA Dong-bai WANG Jing WANG Jin-zhang |
| Affiliation: | HU Shi-an, MA Dong-bai, WANG Jing, WANG Jin-zhang(1. The Unit 91635 of PLA, Beijing 102249, China; 2. Naval Representative Office of Naval Equipments in Tianjin, Beijing 100079, China ; 3. Military Representative Office Resident in Beijing Railway Station, Beijing 100005, China ) |
| Abstract: | For fixed carrier frequency transmitting pulse, the acceleration of maneuvering target will cause the change of square phase of echo signal. In this paper, the Shot Time Fractional Fourier Transformation （FRFr） is used to analyze one radar pulse signal. And then the relation between peak of transformation domain and pulse width is deduced quantitatively. In succession, the relation between Signal-Noise Ratio and the shortest pulse width necessary to get acceleration is discussed. Lastly, simulations have been made to verify the theoretical results. |
| Keywords: | radial acceleration fractional fourier transformation estimate |
| 本文献已被 维普 万方数据 等数据库收录！ | |
