本文设计了一套激光多普勒测速系统，并对该系统作了理论分析和计算。
A laser Doppler velocimetry system is designed, and its theoretical analysis and computation are made.
用三维激光多普勒测速系统测量研究了一个离心压气机转子近端壁区三维紊流流场。
Three-dimensional turbulent flow of the endwall region inside a centrifugal compressor impeller was studied using a Laser Doppler Velocimetry.
采用激光多普勒测速系统测试了蜗壳式旋风分离器内的流场，分析了环形空间内的湍流特性。
The turbulence properties of annular space in a cyclone were investigated by using the Laser Doppler Velocimetry.
采用激光多普勒测速系统测试了蜗壳式旋风分离器内的流场，分析了最主要的分离空间内湍流特性。
The turbulence properties of separation space in a cyclone were investigated by using the Laser Doppler Velocimetry.
采用多普勒测速系统对静态水力旋流器及复合式水力旋流器样机的切向速度场和轴向速度场进行了测试和比较。
By utilizing Laser Doppler Anemometer the tangential and axial velocity fields of static hydrocyclones and compound hydrocyclones were measured and analyzed.
析雷达测速系统的多普勒信号，准确地估计了被测目标的加速情况。
Finally, the Doppler signal ofa radar velocity analyzing system is studied by means of the method in this paper and the speed variation of the observed object is clearly described.
为了实现高准确的测量对象的速度，激光多普勒测速雷达系统建立和频率估计算法研究。
In order to achieve high accurate measurement of object's velocity, a laser Doppler velocity radar system is established and the frequency estimation algorithm is investigated.
设计的多普勒雷达目标模拟器用于分析、验证某型号雷达测速系统存在的技术问题。
The doppler radar simulator is used to analyze and validate the problem of one radar velocity measurement system.
初步探讨了旋芯式喷嘴的雾化机理，简述了三维相位多普勒粒子测速仪（PDPA）的系统参数、测量原理和测量过程。
The primitive atomization mechanism was discussed, and the system parameters, measurement principles and measurement process of 3D phase doppler particle anemometer (PDPA) were presented.
初步探讨了旋芯式喷嘴的雾化机理，简述了三维相位多普勒粒子测速仪（PDPA）的系统参数、测量原理和测量过程。
The primitive atomization mechanism was discussed, and the system parameters, measurement principles and measurement process of 3D phase doppler particle anemometer (PDPA) were presented.
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