数字相关分析法在测量车辆线速度中的研究与应用

通过使用VISUAL DESIGNERTM软件对由数据采集仪UDAS-1001E-2采集而来的数据进行处理,从而实现非接触式转速的测量,验证了利用互相关原理进行非接触式速度测量的可能性.对所搭建的实验台如何移植并应用于测量车辆线速度进行了研究.与历来采用五轮仪测量相比,这种方法具有测量误差较小,结构简单,稳定性高,抗干扰性强,测速范围较宽的优点.

Study and Application of the Digital Correlative Analysis Method in the Measurement of Vehicle Linear Velocity

This thesis begins with the knowledge on the signal and the signal processing, it introduces how to process the data eollecled from the UDAS by using the VISUAL DESIGNERTM to achieve the non-contact velocity measurement, it also verifies the possibility that the non-contact velocity measurement can be realized by using the cross-correlation theory. This thesis sets up an experiment platform which can be transplanted and applied on the study of the measurement of vehicle linear velocity ,Compared with the traditionally used Five Wheel Meter in the Measurement. This Method has some advantages, such as smaller measurement error, the simple architecture, high stability, strong anti-interferenee ability, wide speed measuring range.