| 一种目标速度精确测量的新方法 |
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| 引用本文： | 冯维婷,张宝军. 一种目标速度精确测量的新方法[J]. 计算机工程与应用, 2011, 47(31): 119-121. DOI: 10.3778/j.issn.1002-8331.2011.31.033 |
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| 作者姓名： | 冯维婷 张宝军 |
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| 作者单位： | 西安邮电学院电子工程学院,西安,710121 |
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| 基金项目： | 陕西省自然科学基金(No.2009JM8015); 陕西省教育厅专项科研项目(No.2010JK815)~~ |
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| 摘 要： | 提出了一种CW雷达目标速度测量的新方法，该方法运用离散多项相位变换法先获得目标加速度，然后利用该值对雷达回波进行加速度补偿并基于FFT和插值FFT获得速度值。又考虑到经过雷达信号处理机后得到的速度值存在波动和野值，运用自适应卡尔曼滤波进行处理，剔除野值。相比于传统的测速方法，该方法提高了测量精度，同时也较好地消除了雷达系统噪声，提高了测速系统的稳定性。计算机仿真和外场实测数据处理结果表明了该方法的有效性。
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| 关 键 词： | 速度测量 多项相位变换 快速傅里叶变换（FFT） 卡尔曼滤波 |
| 修稿时间： | |
New method for target's velocity measurement |
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| FENG Weiting,ZHANG Baojun. New method for target's velocity measurement[J]. Computer Engineering and Applications, 2011, 47(31): 119-121. DOI: 10.3778/j.issn.1002-8331.2011.31.033 |
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| Authors: | FENG Weiting ZHANG Baojun |
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| Affiliation: | FENG Weiting,ZHANG Baojun School of Electronic and Engineering,Xi'an University of Post and Telecommunications,Xi'an 71012 1,China |
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| Abstract: | A new method for measurement of target's velocity in CW radar is proposed in this paper.The radar echo is separated into two sine signals by the polynomial phase transform,and the frequency of sine signal is due to the velocity of target.Moreover,this method takes advantage of the frequency estimation algorithm based on FFT and interpolated FFT.Considered the velocity received from radar signal processor has fluctuating and have some unusual value,a method based on adaptive Kalman filter technique is put fo... |
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| Keywords: | velocity measuring polynomial phase transform Fast Fourier Transform(FFT) Kalman filtering |
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