摘要
分析了超声波对动态目标定位时产生的频移现象,并将其应用于目标测速.利用多普勒效应测速,对传统的定位方法加上速度修正,解决了传统定位对于较高速物体定位时产生的滞后现象.利用3个不在同一直线上的波源,将多普勒效应的动态定位推广到二维平面和三维空间的运动情形中,并给出了解析表达式,还探讨了目标物体运动加速度对定位结果的影响.
The frequency shift phenomenon of the ultrasonic target is analyzed and applied to the target velocity measurement.Using the Doppler effect velocity measurement,the traditional positioning method is added to the speed correction,which solves the hysteresis caused by the traditional positioning of the higher speed object.The dynamic positioning of the Doppler effect is extended to the motion of the two-dimensional plane and the three-dimensional space through three wave sources which are not on the same straight line,and the analytic expression is given.The possible effect of the acceleration of the target object on the positioning results is also discussed.
出处
《延边大学学报（自然科学版）》
CAS
2017年第3期216-219,共4页
Journal of Yanbian University（Natural Science Edition）
基金
国家自然科学基金资助项目(10864008)
吉林省高等教育学会重点课题(JGJX2015B7)
关键词
超声波
多普勒效应
目标测速
目标定位
ultrasonic wavel the Doppler effect
target velocity measurement
dynamic positioning
