| 无人机动态RCS测量及数据统计分析 |
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| 引用本文： | 黄勇,孙嗣良,张鑫鹏.无人机动态RCS测量及数据统计分析[J].飞行器测控学报,2011(1):35-37. |
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| 作者姓名： | 黄勇 孙嗣良 张鑫鹏 |
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| 作者单位： | 西北工业大学航天学院; |
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| 基金项目： | 航天支撑基金资助项目(N9XW0004) |
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| 摘 要： | 以某无人机的动态RCS特性作为研究对象，设计了无人机的测试飞行航路，应用非线性最小二乘估计方法，对采集到的无人机动态RCS试验数据进行X^2分布和对数正态分布模型的参数估计，降低了测量噪声对统计模型参数估计的影响，较为理想地解决了数学统计模型参数估计中试验数据测量噪声的影响，并对某无人机的动态RCS统计分布特点做了分析。
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| 关 键 词： | RCS 对数正态分布 X^2分布 非线性最小二乘 |
Measurement and Statistical Analysis of the Dynamic RCS Measurement Data of an UAV |
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| HUANG Yong,SUN Siliang,ZHANG Xinpeng.Measurement and Statistical Analysis of the Dynamic RCS Measurement Data of an UAV[J].Journal of Spacecraft TT&C Technology,2011(1):35-37. |
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| Authors: | HUANG Yong SUN Siliang ZHANG Xinpeng |
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| Institution: | HUANG Yong,SUN Siliang,ZHANG Xinpeng(College of Astronautics,Northwestern Polytechnical University,Xi'an,Shaanxi Province 710072) |
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| Abstract: | The test flight route of an UAV is designed to study its dynamic RCS characteristics.Then,the flight experiment data of the UAV dynamic RCS is modeled as the Chi-Square model and the logarithm normal statistical model,and model parameters are respectively estimated using nonlinear least squares estimation optimization method.The problem that the noise in the test data may degrade the accuracy of the RCS statistical model parameter estimation is solved well with this algorithm.The statistical distribution ch... |
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| Keywords: | RCS Logarithm Normal Distribution Chi-Square Distribution Nonlinear Least Square Estimation |
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