通过使用一个周期的正弦波曲线模型的滑动拟合法，实现了正弦载波相位调制信号波形的精确解调。
By using moving one period sine wave model, the precise demodulation of PM signal wave is achieved.
在典型的通信系统中，调制过程是数字信号加载在载波的幅度值、载波的频率或者载波的相位上。
In the model communications system, the modulation process also is loaded the digital signal in the carrier scope value, the carrier frequency or on the carrier phase.
载波相位噪声对QPS K调制解调的影响是不可忽略的，也是难以分析的。
The effect on modulation and demodulation of QPSK via carrier phase noise can not be ignored, and it is difficult to analyze.
无载波振幅和相位调制正在成为事实上的标准，迄今已占了这个新生市场的大部分。
Carrierless Amplitude and Phase Modulation has emerged as the DE facto standard, having captured most of the nascent market to date.
本章首先分析了各种数字载波调制方法，从调制信号信噪比的角度分析说明基于相位调制的方法适合作为双绞线载波调制的方法。
From signal to noise ratio analysis of the modulation signal, we choose the phase modulation method as the suitable carrier modulation for the twisted-pair.
实测结果表明，这种无变压器环形相位调制器能较好地抑制载波。
The test result indicates that the phase modulator without transformer can suppress the carrier wave.
提供了一种实现改进残留频率误差和相位噪声估算的、适合于在高频通信系统中使用的单载波调制方案。
A single carrier modulation scheme suitable for use in high frequency communication systems is provided that achieves improved residual frequency error and phase noise estimation.
借助所选择的离散的载波相位变化来传输数字信息的调制技术。
Modulation techniques for transmitting digital information in which that information conveyed by selecting discrete phase changes of the carrier.
相位调制，调相：一种电子调幅，为了传递包含在信号中的信息，而使载波的相位改变。
A type of electronic modulation in which the phase of a carrier wave is varied in order to transmit the information contained in the signal.
正如这种新操作模式的名字所指的，PSK(相移键控)调制载波的相位。
As the name of the new mode says, PSK (phase shift keying) modulates the carrier phase.
尤其对用数字方法恢复单一载波调制格式中的光相位和偏振的接收机端的先进算法进行了详细的讨论和分析。
The principle of several digital phase and polarization tracking algorithms recently proposed and demonstrated for future spectrally-efficient optical transmission system are discussed in detail.
四相相移调制是利用载波的四种不同相位差来表征输入的数字信息，是四进制移相键控。
Quadrature phase shift carrier modulation is used to represent the four different phase inputs of digital information, is quaternary phase shift keying.
对适用于干涉型光纤水声传感器阵列的PGC（相位载波）调制—解调单元光纤水声传感器进行了研究，分析得出了光纤水声传感器PGC检测新的带宽要求；
This paper presents the research on the interferometric fiber-optic sensor's PGC scheme which is suitable for the construction of the acoustic sensor array.
对适用于干涉型光纤水声传感器阵列的PGC（相位载波）调制—解调单元光纤水声传感器进行了研究，分析得出了光纤水声传感器PGC检测新的带宽要求；
This paper presents the research on the interferometric fiber-optic sensor's PGC scheme which is suitable for the construction of the acoustic sensor array.
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