摘要
文章对操纵稳定性角脉冲试验数据处理中的傅里叶变换进行了理论推导,将傅里叶变换转化为浅显易懂的求和表达式,分析了傅里叶变换结果在低频区产生误差的原因,低频区幅值误差主要取决于横摆角速度和方向盘转角围成的面积之比。
In this paper, the theory of the Fourier transform in the data processing of the control stability angle pulse test is derived. Transforming the Fourier transformation into a simple, understandable expression,The cause of the error in the low frequency region of Fourier transformation is analyzed.The amplitude error of the low frequency region is mainly determined by the ratio of the angular velocity and the angle of the steering wheel.
作者
张朝雷
李仕途
Zhang Zhaolei;Li Shitu(Great Wall motor co., LTD. Technology center, automotive engineering technology research center in Hebei province, Hebei Baoding 071000)
出处
《汽车实用技术》
2017年第2期185-186,共2页
Automobile Applied Technology
关键词
角脉冲
数据处理
傅里叶变换
频域特性
Angle pulse
data processing
Fourier transform
frequency domain characteristics
