这些信号分别为模拟回波信号的生成提供了天线增益大小、时间基准、相位基准和载波频率大小等重要的参考信息。
These signals provide an important reference of the gain of antenna, the time reference, the phase reference and the frequency of carrier wave for generating stimulant echo signal.
相位相干通信系统中，通常采用锁相环路来产生相干参考信号。
In phase-coherent communication system, phase-locked loop is always used to yield coherent reference signal.
鉴别器，鉴频器：一种将输入信号的某一特征，如频率或相位转变为幅度变化装置，其变化大小因信号与标准或参考信号的不同程度而异。
Discriminator: a device that converts a property of an input signal such as frequency or phase into an amplitude variation depending on how the signal differs from a standard or reference signal.
粗频偏估计算法基于DAB信号所特有的相位参考符号（PRS），细频偏估计算法基于OFDM 信号所特有的循环前缀（CP），对其它采用OFDM 技术的系统具有很好的通用性。
The algorithm for coarse estimation is based on the PRS that is only contained in DAB signal, while the algorithm for fine estimation is based on CP, which could also be used in other OFDM systems.
本文阐述了在任意两个复信号谐波相关情况下，通过引入第三个复信号作为参考，使得在计算复信号比值时能保持时不变相位的计算方法。
We present a method for preserving time-invariant phase relationships, through introduce a third signal as a reference, when ratios are taken between two complex signals that are harmonically related.
参考电容器可以在第三时钟相位放电，这样输入信号依赖电压从电容器被释放。
The reference capacitor can charge at a third clock phase, thus the input signal is released from the capacitor dependently from the voltage.
参考电容器可以在第三时钟相位放电，这样输入信号依赖电压从电容器被释放。
The reference capacitor can charge at a third clock phase, thus the input signal is released from the capacitor dependently from the voltage.
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