Like C++, only one member of the union is active at a time and that member can be determined from the discriminator. 像C++一样,一次只能有一个联合成员是活动的,并且可以从其识别名称来确定该成员。
The stability condition for the system is obtained when the time constant in the pulse operated phase discriminator can not be neglected and with an additional simple RC network. 当脉冲式鉴相器中的时间常数不能忽略并具有附加简单RC网络时,得到了系统稳定的条件。
At the same time, Recuring to the programed phase discriminator and frequency divider, the value of work frequency was scaled with digit accurately. 同时,借助于可编程鉴相器和分频器电路将信号频率点数字化、精确化。
The high-energy physics experiments need to determine a signal generation time, this work is mainly done by the timing discriminator. 高能物理实验中需要确定一个信号的产生时间,这个工作主要由定时甄别器来完成。
Digital frequency detector can be very precise and achieve a most high resolution, however, at the cost of more time. Analog frequency discriminator has much faster response, but lower resolution and stability. 目前,采用数字方法研制的鉴频能达到较高的分辨力和稳定性,但频响往往较低,而用模拟方法制作的鉴频器虽频响较高,但稳定性和分辨力指标下降了。