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研究用于自适应均衡器的LMS算法的性能，数据源产生有零平均和单位方差的由符号+1和-1组成的Bernoulli的序列{I(n)}.数据源之后的信道可以用升余弦脉冲响应来模拟。
-study for the adaptive equalizer LMS algorithm performance, Data Sources have zero mean and unit variance from the -1 and a symbol of the Bernoulli sequenc
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本程序用于完成BPSK、QPSK、pi/4QPSK、OQPSK、8PSK、16QAM、32QAM、64QAM和128QAM的调制仿真。并可任意扩展到MPSK和MQAM。程序分成四个部分，fir.m对基带码元序列进行脉冲成型，可选矩形脉冲，升余弦脉冲和平方根升余弦脉冲； modal.m 为主程序，完成岁各种信号的基带星座图映射、脉冲成型和调制；pi4QPSK.m 为pi/4QPSK信号的星座图映射程序；test1.m给出一个简单的频谱显示测试。,This procedure for the com
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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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有关MPSK调制，传输模型。成型脉冲分为矩形，升余弦脉冲，平方根升余弦脉冲。M的值为2，4和8.所加噪声是高斯白噪声。-Of the MPSK modulation, transmission model. Pulse shape is divided into rectangular, raised cosine pulse, the square root raised cosine pulse. The value of M for 2,4 and 8. The increase in n
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本程序用于完成BPSK、QPSK、8PSK的调制仿真。并可任意扩展到MPSK和MQAM。程序分成三个部分：phase.m对基带码元序列进行脉冲成型，可选矩形脉冲，升余弦脉冲和平方根升余弦脉冲； model.m 为主程序，完成各种信号的基带星座图映射、脉冲成型和调制； command.m给出一个简单的频谱显示测试。-This procedure for the completion of BPSK, QPSK, 8PSK modulation simulation. Arbitrary and m
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平方根升余弦脉冲 平方根升余弦脉冲 平方根升余弦脉冲 平方根升余弦脉冲-Square Root Raised Cosine Square Root Raised Cosine pulse Pulse Pulse square root raised cosine square root raised cosine square root raised cosine pulse Pulse Pulse square root raised cosine square root raised cos
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This is a Simulink Model I created for a Digital Communication Systems class. It demonstrates Carrierless Amplidute Phase(CAP) Modulation and uses a raised cosine pulse to implement a 16-QAM modem.
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脉冲成形中的升余弦脉冲响应，具有零ISI胡脉冲波形。-The raised cosine pulse shaping impulse response, with zero ISI Hu pulse.
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In this simulink model , 16-QAM modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is m
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In this simulink model , QPSK modulation and demodulation is simulated .A square root raised cosine pulse shaped signal is modulated and given as input to the demodulator.The received signal
is demodulated and given to the detector where it is mat
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采用窗函数法设计一个可实现的数字FIR升余弦脉冲成形滤波器xtuanna-Use of window functions can be implemented to design a digital FIR raised cosine pulse shaping filter .xtuanna
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星形16QAM过基带信号产生。经过升余弦成型滤波和高斯信道-Star 16QAM baseband signal generator over. Been raised cosine pulse shaping filter and Gaussian channel
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matlab实现矩形脉冲和根升余弦脉冲的QPSK调制功率谱密度及不同信噪比信道下的星座图，直接运行main函数即可-Plot the power density spectrum of the transmitted signal (e.g., with the matlab function psd) with different pulse shapes. How is it affected if a root raised cosine pulse is chosen instead o
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升余弦滚降脉冲二进制脉冲信号在数字基带传输系统中分析-Raised Cosine pulse binary pulse signal in the digital base-band transmission system analysis
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对输入信息符号串进行矩形或升余弦脉冲成型，程序实现简单高效-Enter the information symbol strings of rectangular or raised cosine pulse shaping, simple and efficient procedure
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升余弦脉冲的设计实例，升余弦脉冲是一种具有零ISI的脉冲波形，此程序用来产生升余弦脉冲。-Raised cosine pulse design example, raised cosine pulse is a pulse waveform with zero ISI, the program used to generate raised cosine pulses.
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平方根升余弦脉冲实例。两个SQRC滤波器的级联组合就成为一个零ISI的滤波器。此程序用于获得平方根升余弦脉冲。-Square root raised cosine pulse instance. Cascade combination of the two SQRC filters to filter a zero ISI. This procedure used to obtain the square root raised cosine pulse.
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数字通信系统中, 基带信号的频谱一般较宽, 因此
传递前需对信号进行成形处理, 以改善其频谱特性,使
得在消除码间干扰与达到最佳检测接收的前提下,提高信道的频带利用率。目前,数字系统中常使用的波形成形滤波器有平方根升余弦滤波器、 高斯滤波器等。设计方法有卷积法或查表法, 其中: 卷积法的实现,需要消耗大量的乘法器与加法器,以构成具有一定延时的流水线结构。为降低硬件消耗,文献提出了一种分-FPGA Implementation of Square Root Raised Cosine Pu
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Pulse Based Raised Shape FIR Filter in Matlab
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Role of Pulse Shaping in Communication Systems:
The duals – Sinc and Rectangular Functions
In communication systems, data is transmitted as binary bits ( ones and zeros). It is easier to implement a binary system using switches, where turning on
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