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Modify the Gray-coded modulation example (COMMDOC_GRAY)
so that it uses a pair of square root raised cosine filters
to perform pulse shaping and matched filtering at the
transmitter and receiver, respectively.-Modify the Gray-coded modulation e
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Computer Simulation Results and Analysis for a Root Raised Cosine
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在matlab环境下实现通信系统中的BPSK，QPSK，16QAM，调制。成型滤波和匹配滤波都采用根升余弦函数。-In the matlab environment to achieve communication system BPSK, QPSK, 16QAM, modulation. Shaping filter and matched filter are used root raised cosine function.
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matlab代码，根升余弦滤波器对数字基带信号进行成型滤波，匹配滤波-Matlab code, the root raised cosine filter on the digital baseband signal shaping filter, matched filter
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通信原理仿真实验：AM、FM调制、单双极性归零码波形及功率谱、根升余弦滚降系统功率谱密度及眼图、信源分布对AMI功率谱的影响。-Communication Theory simulation: AM, FM modulation, single and double polarity zero code waveform and power spectrum, root raised cosine roll-off system power spectral density and eye di
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仿真练习（第六次刘课件中有关于噪声的添加方法）
？ 编写一个含QAM传输的发送和接收模块
？ 分别采用复基带仿真和实带通仿真两种形式
？ 复基带仿真时过采样率为4倍,实带通仿真时过采样率为20倍, 实带通仿真时, 载波频率为符号率的4倍
？ 发端采用滚降系数0.5的根号升余弦滤波器
？ 画出Eb/N0=15dB时的接收波形(收滤波前),取100个采样
？ 画出发端输出的眼图和收端过匹配滤波后的眼图(画眼图时不加噪声)
？ 统计
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Design A Root-Raised Cosine Filter
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Analysis and evaluation of square root raised cosine
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frequency expander. Matlab code for expander.When x is a vector, this function adds L-1 after each element of x.
When x is a matrix, each column of it treated as vector and expanded L
fold.
SQUARE-ROOT RAISED-COSINE PULSE: h=sr_cos_p(N,L
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无线通信系统发射端仿真中，脉冲成型滤波器。是一种根升余弦滤波器。-A pulse shaping filter in the wireless communication system. It is a root raised cosine filter.
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分别编写BPSK与QPSK调制解调系统的Matlab仿真程序，要求：发送滤波器与接收滤波器均为根升余弦滚降滤波器；信道噪声为加性高斯白噪声
绘制BPSK与QPSK调制下的误码率与信噪比曲线图，并与理论曲线比较对比-They were written BPSK and QPSK modulation and demodulation system Matlab simulation program requirements: a transmission filter and a recept
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简单介绍根升余弦滤波器的概念和设计，附有毕业设计。还有一些代码。-Brief root raised cosine filter concept and design, with graduation. There are some code.
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