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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
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1 采用正弦波,方波进行同步调制,实现调制信号、已调信号、解调信号的波形、频谱以及解调器输入输出信噪比的关系。
2 采用Verilog语言编写有符号的五位乘法器
3 实现数字与模拟调制-A sine wave, square wave synchronous modulation to achieve the modulation signal, the modulated signal, the demodulated signal waveform, spectrum and sig
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用matlab实现数字频率调制解调方案,包括滤波,噪声-Digital frequency modulation and demodulation using matlab program, including filtering, noise
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The method of cumulative contribution rate Using MATLAB dynamic clustering or iterative self-organizing data analysis, The commonly used digital signal modulation based on artificial neural network.
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HARQ throughput analysis of the system, The commonly used digital signal modulation based on artificial neural network, Using matlab to calculate the Mahalanobis distance for the image.
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Using high-order cumulants of MPSK signal modulation recognition, The received signal is given eye and BER simulation systems, Based on wavelet transform digital watermarking algorithm matlab code.
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