计算机工程与应用2011，Vol.47Issue(31)：119-121,3.DOI:10.3778/j.issn.1002-8331.2011.31.033
一种目标速度精确测量的新方法
New method for target's velocity measurement
摘要
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.Con-sidered the velocity received from radar signal processor has fluctuating and have some unusual value,a method based on adaptive Kalman filter technique is put forward to improve the accuracy of velocity measurement.Compared with traditional methods, the proposed method improves measurement precision, reduces noise influence, and improves the system stability. The simulation by combining of theoretical data and actual data shows the validity of the method.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Key words
velocity measuring/polynomial phase transform/Fast Fourier Transform(FFT)/Kalman filtering分类
信息技术与安全科学引用本文复制引用
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):119-121,3.基金项目
陕西省自然科学基金(the Natural Science Foundation of Shaanxi Province of China under Grant No.2009JMS015) （the Natural Science Foundation of Shaanxi Province of China under Grant No.2009JMS015）
陕西省教育厅专项科研项目(No.2010JK815). （No.2010JK815）
