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Study_on_Key_Technologies_of_n4-DQPSK_Modulation_a
- 本文首先研究可4一DQPsK调制解调系统中调制部分的基本原理和各个模块的设计方案，重点研究成形滤波器和直接数字频率合成器 (DireetoigitalFrequeneySynihesis，简称DDS)，并针对各个关键模块算法进行matlab设计仿真，展示仿真结果。其次，研究调制解调系统解调部分的基本原理和各个模块的设计方案，重点研究差分解调，数字下变频和位同步算法，也针对其各个关键模块进行算法的Matlab设计仿真。然后用Matlab对整个系统进行理论仿真，得出结论。在此基础 上，采用超高速
dddd
- 通信仿真学习必备，基于MATLAB的数字调制信号仿真系统设计-Learn essential communication simulation, MATLAB-based Simulation System for digital modulation signals
signal_processing
- 用matlab编写的信号处理之QPSK调制与解调程序,均衡,OFDM仿真,小波变换,卡尔曼滤波等等14个程序源代码-Written by matlab signal processing of the QPSK modulation and demodulation process, a balanced, OFDM simulation, wavelet transform, Kalman filtering, etc. 14 source code
source_and_receive_simulation
- 信号源仿真，信号成型，4QMA调制，QPSK，阵列信号接收-source simulation，Signal shaping ，4QAM,QPSK，array signal receive
test
- 电力线载波通信的matlba模型，可以进行信号的调制和解调。-Power line carrier communication matlba model, can signal modulation and demodulation.
Basebandsignaldesignandverificationofdigitalmodula
- 基带信号数字调制的设计与验证，全面分析ask\fsk\psk三种情况-Digital modulation baseband signal design and verification, a comprehensive analysis of ask \ fsk \ psk three cases
tiaozhi
- AM,BPSK,FSK信号的产生程序，附有详细说明调制信号的产生原理。-AM,BPSK,FSK
LFMquar
- 脉冲信号调制解决了线性调频信号的调制特性-LFM
DESIGNOFVOICEENCRYPTIONCOMMUNICATIONSYSTEMBASEDONC
- 鉴于语音信号的“即时性 ”特点 ,在分析了混沌掩盖、混沌调制进行加密利弊的基上 ,构造了一种混沌切换加密方案 ,对语音进行了更安全有效地加密.-DESIGNOFVOICEENCRYPTIONCOMMUNICATIONSYSTEMBASEDONCOMPUTERNETWORK
OFDM
- 实现OFDM基本调制，QPSK调制。通过高斯信道，最后恢复原信号-To achieve the basic OFDM modulation, QPSK modulation. Through the Gaussian channel, and finally restore the original signal
signal_source
- 数字通信调制信号模拟系统中常见通信信号的信号源-Digital communication modulation signal simulation system common source of communication signals
bpskev
- BPSK信号调制解调，在AWGN与RAYLEIGH信道下的无码性能！-BPSK signal modulation and demodulation in AWGN channel with RAYLEIGH-free code performance!
ds_1
- DS的信号调制解调，是基于matlab的的M文件。-DS signal modulation and demodulation, is based on the M-file matlab.
Mod
- 程序包里面包含了，NFSK，NPSK，16QAM调制信号的产生函数，以后大家编程时也能用到 后面还有调制识别的程序，相当完整。 -Package which includes, NFSK, NPSK, 16QAM modulation signal generation function, after all programming can be used to back when there is modulation recognition procedure, quite c
moulation_classification
- 主要是实现调制识别，区分几种常用的数字调制信号，包括ASK,FSK,PSK,QAM。含有两个文件夹 其一为特征参数的仿真；其二为正确识别率的仿真。 文件夹key feature simulink中： 运行程序会得到各特征参数之间区分图 从图中可看到特征参数的有效性。 文件夹classification rate simulink中： 运行main.m文件 可以得到正确识别率 -Mainly to achieve modulation recog
ppm
- 经PPM调制的超宽带信号经高斯白噪声信道的系统仿真,给出了时域和频域图-Modulated by the PPM UWB signal by Gaussian white noise channel of system simulation, given the time and frequency domain map
fsk
- 什么是信号调制？在测控系统中为什么要采用信号调制？什么是解调？在测控系统中常用的调制方法有哪几种？ -Coherent detection of fsk Fsk modulation is characterized by the information being contained in the frequency of the carrier. What is the signal modulation? Has to use the signal modulation why i
bpsk
- BPSK基带传输系统的MATLAB仿真 实现了主要模块二进制信息源输入，BPSK调制，发射滤波器，接收滤波器，采样，均衡，信号检测，BPSK解调，信息还原输出，产生BER曲线图。 -failed to translate
4PSK
- 基于Matlab模拟实现，是基于Matlab的仿真，对软件的要求很高，要求用Matlab实现对信号的调制解调和对信道的模拟。-Matlab-based simulation implementation is based on the Matlab simulation, the software requirements, demanding to achieve with Matlab signal modulation and demodulation and analog channel
AM
- 该段程序是AM调制，其中包括调制信号，载波和已调信号的时频分析-The section of program is AM modulation, including modulation, carrier and modulated signals time-frequency analysis