-
1.发明授权Phase demodulator utilizing a frequency divider, synchronous filter, and phase comparator 失效相位解调器利用分频器，同步滤波器和相位比较器
公开(公告)号：US4419630A
公开(公告)日：1983-12-06
申请号：US260629
申请日：1981-05-05
申请人： Paul H. Gilbert
发明人： Paul H. Gilbert
CPC分类号： H03K9/06
摘要： A phase demodulator for recovering the modulating wave from a phase-moduld wave. A frequency divider is provided to divide the phase-modulated wave in frequency to produce a phase-modulated subharmonic wave which is compared in a phase comparator with a signal produced by passing the phase-modulated subharmonic wave through a syncrhonous filter set at its carrier frequency. The filtered output of the phase comparator is proportional to the amplitude of the modulating wave.
摘要翻译： 相位解调器，用于从相位调制波恢复调制波。 提供了一个分频器来分频频率的相位调制波，以产生相位调制次谐波，在相位比较器中与通过相位调制次谐波通过其载波频率组合的同步滤波器产生的信号进行比较 。 相位比较器的滤波输出与调制波的幅度成正比。
-
2.发明授权Discrete automatic gain control with high stability, high speed and low distortion 失效离散自动增益控制具有高稳定性，高速度和低失真
公开(公告)号：US5161170A
公开(公告)日：1992-11-03
申请号：US465284
申请日：1990-01-16
IPC分类号： H03G3/20
CPC分类号： H03G3/3073
摘要： High speed automatic gain control (AGC) circuitry, capable of use in pulse or CW systems, incorporates hysteresis for improving the stability and distortion characteristics of the AGC. After a gain setting is selected, the built-in hysteresis feature prevents an adjustment in that gain setting until the amplitude of the input signal varies more than a predetermined amount. Sampling of the amplitude of the input signal and gain adjustments are accomplished by digital circuitry. In one embodiment, AGC is on a pulse-to-pulse basis.
摘要翻译： 能够在脉冲或CW系统中使用的高速自动增益控制（AGC）电路包含用于提高AGC稳定性和失真特性的滞后。 在选择增益设置之后，内置滞后功能可防止在该增益设置中的调整，直到输入信号的幅度变化超过预定量。 输入信号的幅度采样和增益调节由数字电路实现。 在一个实施例中，AGC基于脉冲对脉冲。
-
搜索结果
2 条记录 (耗时 0.011 秒)
