相位锁定 meaning in Chinese

pl phase lock

Pl phase lock
相位锁定
It has been an important component of communication , radar , instrument , high - speed computer and navigation equipment . fractional - n phase locked loop ( fnpll ) frequency synthesis has been appeared in recent years
频率合成器是一种相位锁定装置，是通讯、雷达、仪器仪表、高速计算机和导航设备中的一个重要组成部分。
In the system , control unit accomplishes back - emf zero - crossing information reading and closed loop commutation . the system eliminates the pwm interferences and the commutating interferences by filtering with software algorithm . in order to make the bldc commutate exactly , the method of three - point estimation is used for phase locking in the system . the system also accomplishes several important objects , such as tmppt of photovoltaic arrays , unmanned supervision of the system , fault detection etc . the results of the experiment show that the device , which is made on the base of the principle above , can control the motor to complete the exact commutation
系统以motorola单片机jl3为核心，完成了系统外围硬件电路和控制软件设计，实现了直流无刷电机反电势过零检测，利用软件滤波的方式消除了pwm波干扰及换相干扰；采用三点预估算法，进行相位锁定，以完成直流无刷电机准确换相；同时实现了光伏阵列工作点的tmppt跟踪、系统无人监控和故障检测等功能。