pulse-width modulation-frequency modulation

Second, the paper analyzes the single-pulse modulation which includes pulse amplitude modulation, on-off keying modulation, pulse position modulation and two-phase modulation.

其次分析了单脉冲调制中的脉冲幅度调制、开关键控调制、脉冲位置调制和二相调制。

We analyzed the LED modulation and coding, the pulse position modulation ( PPM) and the multiple pulse position modulation ( MPPM) were compared in their reliability and validity.

分析了LED调制编码，并将单脉冲位置调制与多脉冲位置调制的可靠性和有效性进行了对比。

In this pager, the self-phase modulation effect in gain saturated semiconductor optical amplifier and its affect on the shape, phase and spectrum of transmission pulse are analyzed.

本文分析了半导体激光放大器处于增益饱和状态下的自相位调制（SPM）效应，以及SPM效应对传输脉冲波形、相位及频谱的影响。

The category and scheme of pulse time modulation are presented.

文章给出了脉冲时间调制的分类方法及实现方案。

The method comes from the mechanism of reciprocal shift modulation, which transforms the measuring of eigenfrequency into measuring the spike pulse responding to ineffective-modulation optic power.

从互易性偏置调制的机理出发，将对本征频率的测量转化为对无效调制光功率响应的尖峰脉冲的测量；

This paper develops a voice compress algorithm-SB-ADPCM ( Sub Band-adaptive Differential Pulse Code Modulation ).

论述了计算机数字录音技术中的语音压缩算法 — SB-ADPCM ( Sub Band -AdaptiveDifferentialPulseCodeModulation ) 方法.

Taking the μ law Pulse Code Modulation for example, the principles of communication through M-LINK were studied, and the joint simulation flow was proposed.

以μ律PCM编码为例提出了一种以M-LINK接口为桥梁的联合仿真方法，给出了联合仿真的流程。

Pulse-phase modulation qualifying symbol. Modulation type can be specified.

脉冲 - 相位调制限定符号. 可指定调制类型.

TACAN beacon transmits pulse amplitude modulation signals in all direction, including bearing and distance information relative to the beacon.

塔康信标台全向发射脉冲幅度调制信号，隐含空中目标相对于信标台的方位和距离信息。

Design and Temperature Drift Test of Pulse Modulation Constant Temperature Difference ( CTD) Control Circuit of Thermal Flow Sensor

脉冲调制型恒温差风速计控制电路的设计及其温漂特性测试