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1·This paper deal with the DPSK demodulation method based on the adaptive algorithm.

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。

2·With the LFM pulse frame synchronization method, the performance of UWA communication system based on DPSK is apparently improved.

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。

3·The technology of virtual radio is developing rapidly, a new DPSK signal software demodulation algorithm is proposed based on virtual radio.

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。

4·By optimizing the power of the ASK channel, formats combination of ASK and DPSK to DPASK signal is successfully demonstrated by computational simulation.

通过优化ask信道的功率，我们使用计算机仿真成功展示了ASK和DPSK信号到DPASK信号的码型组合。

5·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.

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。

6·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).

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。

7·Besides, the limitation of RZ-DPSK regeneration utilizing self-phase modulation is discussed. The initial conditions using four-wave mixing to achieve regeneration is given.

同时对于RZ - DPSK信号，研究了利用自相位调制实现再生的局限性，给出了利用四波混频实现再生的初始条件。

8·Firstly, this thesis analyzes the transmission characteristics of HF channel, and fixes on the system modulation scheme 2dpsk, according to the comparison of ASK, FSK and PSK (DPSK).

首先，本文分析了短波信道的传输特性，并通过比较A SK、FSK和PS K (DPSK)几种调制方式的特点，确定了2dpsk为系统的调制方案。

9·A simple digital demodulation method is proposed for the DPSK-PM modulated signals, which are commonly used in the satellite USB (Unified S-band) tracking telemetry and command system.

针对卫星usb测控系统中常用的DPSK - PM调制技术，设计了一种简单的数字解调方法。

10·By optimizing the pump phase modulation configuration, the converted DPSK idler's degradation can be dramatically decreased through balancing SBS suppression and pump phase modulation degradation.

通过优化泵浦相位调制的配置，平衡受激布里渊散射抑制和泵浦相位调制造成的转换闲频光信号劣化，可以使转换闲频光信号的劣化得到有效的抑制。