说明：Optical communication is a branch of telecommunication in which light is used as signal. Traditionally, the signals through the circuits used to be electrical signals. The need of faster data transfer and large bandwidth became the mother of invention of optical communication, which provides efficient transmission of data over long distances. In this program DPSK of signal has been simulated.

说明：假设载波频率为1Hz,画出4-DPSK调制的信号波形

说明：DPSK数字psk设计，matlab仿真设计，fpga实现

说明：2DPSK调制与解调仿真，包括相干解调与非相干几条，以及误码率分析

说明：基于FPGA的dpsk解调程序，包括载波的生成，nco的设置

说明：基于FPGA的dpsk调制程序，包括载波的生成，nco的设置

说明：基于FPGA的dpsk 调制解调仿真程序

说明：dpsk调制与解调的源码，可以使用天线接收

说明：各种数字调制解调方法的MATLAB实现，输出为信噪比图像。包括BPSK,DPSK,QAM,QPSK(包括有无格雷编码的对比)

说明：FSO Free Space Optical DPSK modulation simulation in matlab

说明：FSO Free Space Optical DP DPSK simulation

说明：二相BPSK(DPSK)调制解调实验基于simulink的仿真及原理说明

说明：ISE编程仿真DPSK中相对码和绝对码的转换

说明：verilog实现DPSK的调制是基于DDS直接频率生成

说明：无限接收算法 DPSK 相干接收机 FIR 滤波器

说明：dpsk在Matlab下的仿真，需要的朋友快来下载吧

说明：This is the source code for various digital modulation schemes(QAM,MSK,DPSK,MFSK,QPSK)

说明：2DPSK的链路仿真，信号源的产生，PCM编码，调制解调以及加燥

说明：本代码实现的是在实际情况下仿真DPSK调制信号在莱斯衰落信道下的各项性能分析

说明：用MATLAB来仿真FSK、PSK、DPSK的调制、解调过程，并通过实验来比较它们的误码率和信噪比的关系。内附有matlab源代码

说明：DPSK调制信号的生成，通过MATLAB生成测试数据，用quartusII软件编译并仿真

说明：dpsk modulator digtal system radio

说明：基于数字接收机，DSPK解调技术的FPGA实现，是一个完整的工程，非常有利于学习。

说明：Hamming code BER with DPSK

说明：BCH coded m-DPSK BER with AWGN

说明：Differential PSK (DPSK) 􀂄 Inexpensive 􀂄 Quadrature Phase Shift Keying (QPSK) 􀂄 Twice as spectrally efficient than BPSK 􀂄 Offset QPSK (OQPSK) 􀂄 reduce envelope variation 􀂄 π/4 QPSK 􀂄 reduces envelope variations to a lesser extent than OQPSK can be noncoherently detected

说明：This Paper is concerned with the study of the performance of DPSK (differential phase shift keying) Modulation Technique using AWGN(Additive white gaussian noise) channel. The DPSK has remarkable features such as limited bandwidth and constant envelope, which are of importance for mobile communication systems for providing the output according to our needs and requirement. In this study we evaluated the Bit error rate performance of the CDMA system by designing the CDMA system using SIMULINK Tool of the MATLAB software and study the performance characteristics of DPSK modulated CDMA system which are helpful for raising the level of present day communication systems, In order to design our DPSK modulated CDMA system we varied only modulation blocks of simple CDMA transmitter and receiver sections.

说明：完成M=4的DPSK通信系统仿真，并求出其相应的误码率、误比特率

说明：用MATLAB实现DPSK编码器功能，该程序对M=8情况的DPSK实现了差分编码

说明：采用costas环进行DPSK解调的程序。输入数据速率2.4Kbps，载波频率12KHz，采样率1.6MHz， 输入数据位宽12位，快捕带为799.617Hz