TFM是一种相关相移键控信号。
偏移量正交相移键控oqps K ？
相对相移键控 RPSK?。
偏移量四象制相移键控oqps K ？
如果“0”和“1”来改变载波的相位，则称为相移键控。
If the "0" and "1" to change the carrier phase, called phase shift keying.
本文讨论了弱光反馈对相干光差分相移键控系统误码率的影响。
The effects of weak optical feedback (WOF) on the bit error rate (BER) of coherent optical differential phase shift key-controll (DPSK) systems are presented.
传输信号采用正交相移键控调制方式，以有效利用有限通信带宽。
Quadrature phase shift keying(QPSK) signaling is employed to make efficient use of the available bandwidth.
提出了一种实现MPSK(多进制相移键控)调制系统的新方法。
A novel design and implementation approach to the modulation system of MPSK has been proposed in this paper.
针对二进制相移键控调制的二维扩频系统，分析了其抗单音干扰的性能。
The current analysis focuses on the performance of BPSK modulation on 2-dimensional spread spectrum system with single-tone jamming.
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.
本文研究了一种基于自适应算法的解调差分相移键控（DPSK）信号的方法。
This paper deal with the DPSK demodulation method based on the adaptive algorithm.
介绍了一种适用于二相相移键控(BPSK)扩频调制信号的数字式处理方法。
This paper proposes a novel digital IF processing method of BPSK signal.
与当前通过编码的相移键控(PSK)调制相对，还存在另外的通过子载波的调制。
Compared to current phase shift keying (PSK) modulation by a code, there is a further modulation by a sub-carrier.
TPS数据块的第一段310（比特S0）为差分二进制相移键控调变的初始比特。
The first segment 310 of the TPS data block (bit so) is an initialization bit for a differential binary phase shift keying (2-PSK) modulation.
同时运用线性调频脉冲帧同步法，改善了基于差分相移键控的水声数字通信系统的性能。
With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved.
本文提出了一种新的差分调制方式，我们称之为相干幅度差分相移键控(CADPSK)。
The thesis presents a new differential modulation, Coherent Amplitude and differential Phase Shift Key (CADPSK).
针对微弱二进制相移键控(BPSK)信号的解调问题，对基于混沌系统的解调方法进行了研究。
Concerning the problem of demodulating the weak Binary Phase Shift Keying (BPSK) signal, the demodulation method based on chaotic system was researched.
偏移四相相移键控（OQPSK）是一种适用于在限带非线性信道中使用的高效恒包络数字调制技术。
The offset quadrature phase-shift-keyed(OQPSK) is an effective digital constant envelope modulation for band-limited nonlinear channel.
为了克服由多径传播造成的相移失真难题(特别是在HF链路里)，调制采用差分相移键控(DPSK)来完成。
To cope with the problem of phase shifts caused by different propagation paths (especially in HF links), the modulation is done in differential phase shift keying (DPSK).
虚拟无线电技术正在不断的蓬勃发展，该文提出了一种基于虚拟无线电思想的二进制差分相移键控信号软件解调算法。
The technology of virtual radio is developing rapidly, a new DPSK signal software demodulation algorithm is proposed based on virtual radio.
第三，对采用不同调制格式（包括幅移键控和二进制相移键控）的光副载波复用（OSCM）系统中，PMD引起的功率代价进行了量化。
Thirdly, we quantify the power penalty caused by the PMD in optical subcarrier multiplexing (OSCM) system with amplitude shift keying (ASK) and binary phase shift keying (BPSK).
通信仿真平台的任务是对调幅、调频、单边带、二进制振幅键控、二进制频移键控、二进制相移键控、正交相移键控等七种通信信号的调制和解调进行建模和计算。
The target of the communication system flat is modeling and calculating to modulation and demodulation of seven kinds of signals:AM, FM, SSB, 2ASK, 2FSK, 2PSK, 2QPSK.
设计出了二次调制系统：采用连续可变斜率增量调制（CV SD）实现模拟话音信号与数字编码的转换，采用二进制相对相移键控（2DPSK）作为数字调制方式。
A twice modulation is designed:, CVSD was adopted to realize conversion between analog and digital voice signals, 2DPSK was used as the digital modulation mode.
目标应用场合包括：每秒100吉比特的长距离极化多路（pol-mux）（差分）正交相移键控（QPSK），40吉比特每秒的长距离（差分）正交相移键控和40G/100G并行网络。
The target applications include 100-gigabit-per-second long-haul pol-mux (D)QPSK, 40-gigabit-per-second long-haul (D)QPSK, and 40G/100G parallel networking.
目标应用场合包括：每秒100吉比特的长距离极化多路（pol-mux）（差分）正交相移键控（QPSK），40吉比特每秒的长距离（差分）正交相移键控和40G/100G并行网络。
The target applications include 100-gigabit-per-second long-haul pol-mux (D)QPSK, 40-gigabit-per-second long-haul (D)QPSK, and 40G/100G parallel networking.
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