一种修正测速雷达误差值的设计方法

为了得到高精度的测速雷达值,以实时修正由于测速雷达设备安装角度原因而产生的误差,提出了一种修正测速雷达误差值的设计方法.通过采用BCD码设定方法将误差夹角α值预设定,将雷达实测速度值v通过RS232接口发送到控制器中,控制器根据系统速度修正值计算公式进行软件编程计算,得到测速雷达的修正值,并将修正后的速度值通过控制器的通讯链路输出.结果表明,经修正系统修正后的测速值在精度上得到了保证,为后续研究奠定了良好的基础.

A design method of correcting error value of velocity radar

In order to obtain the velocity radar value with high precision and thus to realize the real time correction of the error caused by installation angle of velocity radar equipment, a design method of correcting error value of velocity radar was proposed. With the BCD code setting method, the value of error angle α was preset, and the measured radar velocity value v was sent to the controller through RS232 interface. In addition, the software programming calculation was performed by the controller according to the calculation formula for the correcting value of system velocity, and thus the correcting value of velocity radar was obtained. The corrected velocity value was output by the communication link of the controller. The results show that the precision of the measured velocity value modified with the correcting system can be guaranteed, which can provide a good foundation for the follow up studies.