计数式频率计的选通门一般与被测信号是不相关的。
The strobe signal is not commonly associated with the signal tested.
当被测信号频率较低时，需要很宽的选通门才能得到较高的测量精度。
If the signal frequency to be measured is low, wide strobe gate is required for high measurement precision.
本文给出了距离选通光子计数系统的信噪比模型并讨论了激光回波与探测器选通门之间的同步问题。
This article provides the signal-to-noise ratio module of the range-gating photon counting system and discusses the synchronization between the laser echo wave and the detector gate.
该数据选通器主要由CMOS传输门和CMOS移位寄存器构成，能同时适用于数字信号与模拟信号。
This device is constituted by CMOS transmission and CMOS shift register and is able to apply to the digital signal and analog signal at the same time.
提出了一种基于多帧相关技术与波门选通技术相结合的快速目标识别与跟踪方法。
A novel method to detect and track small moving point target in image sequence is proposed in this paper, based on combination of the correlation of multi-frames and wave gate techniques.
提出了一种基于多帧相关技术与波门选通技术相结合的快速目标识别与跟踪方法。
A novel method to detect and track small moving point target in image sequence is proposed in this paper, based on combination of the correlation of multi-frames and wave gate techniques.
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