The latter estimates the vehicle position by synchronizing the speed vector and the position vector measured by Beidou system.
后者首先同步车速矢量与北斗卫星测量得到的车辆位置矢量，再根据融合结果估算车辆定位信息。
The present invention has image pick-up to obtain image in sequence, and takes sample frame and current frame to estimate moving speed vector and calculate image displacement.
本发明提供的方法与装置，利用影像撷取装置以循序方式撷取数字影像，取出样本帧与当前帧，估计移动速度向量，并计算影像的位移量。
Theoretical derivation is done to the analyzing method of synchronous blade vibration by using speed-vector-end-tracking method, and so is the computer simulation to measurement process.
基于叶尖定时测振原理，对利用速矢端迹法分析叶片同步共振幅值的方法做理论推导，建立叶片同步共振的分析模型并进行仿真。
Theoretical derivation is done to the analyzing method of synchronous blade vibration by using speed-vector-end-tracking method, and so is the computer simulation to measurement process.
基于叶尖定时测振原理，对利用速矢端迹法分析叶片同步共振幅值的方法做理论推导，建立叶片同步共振的分析模型并进行仿真。
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