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FSK/PSK调制顶层文件
,正弦波模块
,正弦波模块初始化文件
,振幅调整及波形选择模块
,频率显示值地址产生模块
,频率步进键核心模块
,弹跳消除电路-FSK/PSK modulation top-level documents, sine-wave modules, module initialization file sine wave, amplitude adjustment and waveform selection module, the freque
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扩频通信系统,包括直接序列扩频,PN序列产生,以及调频扩频-Spread spectrum communication system, including direct sequence spread spectrum, PN sequence generation, as well as spread spectrum frequency modulation
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多进制数字频率调制(MFSK)系统VHDL程序-Multi-band digital frequency modulation (MFSK) system VHDL procedures
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多用户多载波时频域cdma扩频的仿真,使用类编程。包含发送,信道,接收3个类。有选择用户数,联合扩频,调制,FFT变换,高斯信道和瑞利,解调,解扩,统计误码率等功能,减小仿真点数可使程序运行更快。-Multi-user multi-carrier spread spectrum cdma time-frequency domain of the simulation, the use of programming. Send contain, channel, receiving three c
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以转差频率矢量控制的基本原理和概念为基础,利用matlab simulink构建仿真模型并进行仿真。仿真的结果表明采用转差频率控制的矢量控制系统具有良好的控制性能。-To slip frequency vector control of the basic principles and concepts based on the use of matlab simulink simulation model and to build a simulation. Simulation result
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设计卫星信道条件下,用于调制方式识别的载频和带宽识别算法。-Satellite channels under the conditions of the design for the identification of modulation carrier frequency and bandwidth of the recognition algorithm.
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通信信号相干调制解调源码 Fc=10 %载频
Fs=40 %系统采样频率
Fd=1 %码速率
N=Fs/Fd
df=10
numSymb=25 %进行仿真的信息代码个数
M=2 %进制数-Coherent modulation and demodulation of communication signal source Fc = 10 carrier frequency Fs = 40 systematic sampling frequency Fd = 1 co
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正交频分复用的调制解调:实现了mb-ofdm的基带超宽带信号调制解调-Orthogonal frequency division multiplexing of the modulation and demodulation: the mb-ofdm of base-band ultra-wideband signal modulation and demodulation
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简单实用的扩频系统MATLAB源程序,包括直接序列,调频和CDMA-Spread-spectrum systems simple and practical MATLAB source, including direct sequence, frequency modulation and CDMA
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采样法生成三相SPWM波的开环调速控制程序载波频率为20KHz,或载波周期为50μs。DSP晶振10MHz,内部4倍频,时钟频率为40MHz,计数周期为25ns。假设调制波频率由外部输入(1~50Hz),并转换成合适的格式-Sampling method to generate three-phase SPWM wave open-loop speed control procedures for the carrier frequency 20KHz, or carrier period is
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频率调制,属于角度调制中主要一种,相位调制可以通过对信号先微分再调频获得-Frequency modulation, angle modulation in the main belong to a kind of phase modulation of the signal can be differential access to re-FM
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DMT调制,就是把整个通信信道在频域上划分很多子信道,在每个子信道上仍然采用QAM或类似的带通信号进行传输。其中QAM的通带中心频率应该与相应的子信道的中心频率一致。-DMT modulation, that is, the entire communication channel in the frequency domain divided on a lot of channel in each channel is still used on QAM or similar bandpass
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这是我们现代通信原理课程设计时所写的一个关于模拟信号的调频(FM)、双边带调幅(DSB)程序,里面还有详细的报告。-This is our modern communication principles course design of a written about analog signals (FM), the frequency modulation (DSB) with bilateral program, with detailed report.
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用matlab绘制线性调频信号的时域波形,同时对信号进行频谱分析,并考察采样频率以及信噪比对频谱分析的影响。-Matlab drawing with linear frequency modulation signal time-domain waveform, and spectral analysis of signals and the sampling frequency and signal to noise ratio study of the impact of spectrum
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ex9_1 脉冲信号调制
ex9_2 载波10MHz,带宽2MHz的线性调频信号及其频谱图
ex9_3 产生7位巴克码编码的二相码
ex9_4 产生7位巴克码和线性调频的混合调制信号
ex9_5 瑞利分布实现程序
ex9_6 瑞利分布+杂波
ex9_7 相关对数正态分布杂波
ex9_8 相关weibull分布杂波
ex9_9 相干相关K分布杂波
ex9_10 线性调频信号的数字化正交解调
ex9_11 雷达脉冲压缩处理
ex9_12 二相编码信号的脉压
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DIGITAL MODULATION TECHNIQUES
the material describes digital modulation techniques such as BINARY PHASE SHIFT KEYING (BPSK), DIFFERENTIAL PSK (DPSK), DIFFERENTIALLY-ENCODED PSK (DEPSK), QUADRATURE PSK (QPSK), QUADRATURE AMPLITUDE SHIFT KEYING (Q-AS
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模拟信号的数字化传输---增量调制系统
用SIMULINK建立简单增量调制系统的模型并进行
(3) 正弦信号
(4) 语音信号
的传输。
改变抽样频率和量化台阶大小,观察重建信号以及量化噪声信号的波形;对于语音信号主观评价声音质量的变化。
-Digitized analog signal transmission systems--- delta modulation delta modulation SIMULINK easy set up of the model s
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OFDM是一种新型的调制方式,称为正交频分复用。阐述了OFDM的原理、系统组成和
优良性质及其在数字电视传输和混合光纤电缆网(HF,C)中的应用。
-OFDM is a new type of modulation is called orthogonal frequency division multiplexing. OFDM on the principles of good composition and the nature of the system and its appl
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振幅调制,角度调制,频率调制等几个源程序,模拟通信系统-Amplitude modulation, angle modulation, frequency modulation, such as source code, analog communication systems
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