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数字基带传输的全部matlab仿真文件，测试无误，升余弦滚降滤波器-Digital baseband transmission matlab simulation of all documents, test passed, raised cosine roll-off filter
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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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my_2bpsk.rar文件包含了一个m文件和一个低通滤波器数据文件，实现的数字通信系统的升余弦基带成型，bpsk数字调制，以及高斯白噪声、接收端相干解调系统处理的各个阶段，并用plot语句画出了相关波形,对于理解数字通信系统有很大的好处。-my_2bpsk.rar file contains an m file and a low-pass filter data file, to achieve the digital communication system raised cosine b
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Pulse shaping filters are used at the heart of many modern data transmission systems (e.g. mobile phones, HDTV) to keep a signal in an allotted bandwidth, maximize its data transmission rate and minimize transmission errors. Raised cosine filters for
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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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一、 本程序采用16QAM调制方式，对一串2进制信源进行调制，用升余弦滚降函数进行基带调制，再调到高频信道；在信道上加入高斯白噪声，运用匹配滤波器解调，画出解调星座图，运用最小欧氏距离译码判决，计算误比特率。-First, the program uses 16QAM modulation, the source of a string of two binary modulation, with the Raised Cosine modulated baseband functions, a
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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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raised cosine matching filter
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基于FPGA开发的11阶半带升余弦FIR滤波器，用在阅读器基带滤波时的抽取滤波器使用，采用verilog语言实现。-Raised cosine FIR filter based FPGA development 11 order of half-band decimation filter used in reader baseband filtering, using verilog language implementation.
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对码元序列进行基带成型滤波，来减少码间串扰，采用的是升余弦滚降滤波器，可以通过更改参数的方式来更改成根升余弦滚降滤波器-Symbol sequence baseband shaping filter to reduce inter-symbol interference, raised cosine roll-off filter, you can change the parameters to change into a root raised cosine roll-off filter
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对原始码元序列进行基带成型，采用的是根升余弦滚降滤波器，可以更改参数变成升余弦滚降滤波器-Baseband shaping the source sequence, using root raised cosine roll-off filter, you can change the parameters into a raised cosine roll-off filter
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数字信号的基带传输 PAM的功率谱密度 数字基带的接收 匹配滤波器 升余弦滚降系统 基带信号眼图-Digital baseband digital signal baseband transmission power spectral density of the PAM receiver matched filter raised cosine the system baseband signal eye diagram
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BPSK匹配滤波器的误码率统计。1.二进制PSK信号进过波形生成器，生成根升余弦信号 2.对信号加噪声 3.接受加噪信号后，匹配滤波 4.统计误码率-BPSK matched filter error rate statistics. 1 signal into a binary PSK waveform generator had to generate root raised cosine signal (2) of the signal plus noise 3. Accept the a
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4FSK正交调制解调 其中有升余弦成型滤波，梳形内插。画出误码率曲线-4FSK modulation and demodulation with raised cosine shaping filter, comb shape interpolation. Draw the curve of error rate
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产生64QAM基带通信系统发射机：基带成型滤波采用3种方式（1）采用每个符号调制一个成型滤波函数，然后将各个函数进行时域叠加的方法；
（2）采用信号与低通滤波器响应函数卷积的方法；（3） matlab自带的升余弦函数-Produce 64QAM baseband communication system transmitter: baseband shaping filter uses three ways (1) the use of a molding each symbol modul
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采用窗函数法设计一个可实现FIR升余弦脉冲成形滤波器-Using a window function design enables FIR raised cosine pulse shaping filter
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基于最大平均功率算法的符号定时恢复算法。输入参数：RtfSig过采样的待恢复信号，信号中的N符号总数，dS升采样率，N_T升余弦滚降滤波器系数-Symbol timing recovery algorithm based on maximum average power algorithm. Input parameters: RtfSig be over-sampled signal recovery, the total number of N-symbol signal, the samp
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Function bpsk_mod (x, L, SNR, pulse, theta, phi)
Function that implements a bandpass signal generator in
Phase and quadrature.
Input Parameters:
1.- X = bit sequence
2.- L = oversampling factor
3.- SNR = signal-to-noise ratio at
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产生16QAM信号，用平方根升余弦滤波器进行脉冲整形，平方根升余弦滤波器产生16-QAM波形波形，画出眼图(16QAM signal of pulse shaping by square root raised cosine filter, the square root raised cosine filter to generate 16-QAM waveform waveform, draw the eye)
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主要包括升余弦脉冲滤波器、平方根升余弦滤波器、 高斯滤波器(It mainly consists of raised cosine pulse filter, square root raised cosine filter and Gauss filter)
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