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psf_3gpp
- 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
FPGA-basedimplementationoftherootraisedcosine
- 基于FPGA实现根升余弦滤波器的研究（在MATLAB环境中）-FPGA-based implementation of the root raised cosine filter (in the MATLAB environment)
raisecosine
- 基于matlab的子程序，可以进行任意通信信号的升余弦滤波-Subroutine based on matlab, any communication signals can be raised cosine filter
sqrc.m
- 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.
qam
- 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
RC_FILTE
- Raised Cosine Filter
FPGASquare-RootRaised-CosineFilter
- 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
OFDM_DETECTION
- OFDM检测的仿真，通过计算OFDM的归一化4阶累积量，实现OFDM信号的判决，内含升余弦滚降滤波或内插滤波的频谱图-OFDM simulation test, by calculating the normalized OFDM 4th order cumulant, to achieve decision OFDM signal, containing Raised Cosine filter or interpolation filter of the spectrum
k2
- 6QAM通过带限信道，设码元速率为1000波特，传输信道特性为滚降系数为0.75的滚升余弦频谱的滤波器，试建立测试模型并观察接收信号（等效基带信号）的眼图、星座图和相位转移轨迹图。simulink模型-6QAM through the band-limited channel, located at 1000 baud symbol rate, the transmission channel characteristics for the roll-off factor of 0.75 of
BPSK
- 用于BPSK调制的自行设计，说明如下： 1.matlab.txt中的程序是matlab平台下的.mat格式。目的是输出一个64*4的矩阵，矩阵的每个元素都为0~255间的整数。矩阵每行的四个数是一个码元的四个抽样点的量化值。但由于当前码元通过升余弦滤波系统时，受到前后共6个码元的共同影响，所以是由6个码元共同决定。这6个码元是随机的，可能是0也可能是1（双极性时可能是-1也可能是+1），故6个码元共2^6=64种情况，所以产生的矩阵是64*4。最后逐行输出这256个数。 2.
raised_cosine_filter
- Root raised cosine filter implementation in matlab, with graphs of impulse and frequency response.
risecos_qpsk
- qpsk的升余弦滤波，matlab编写M文件，调试成功，显示滤波图形。-the qpsk raised cosine filter, Matlab prepared M-file debugging success, showing the filter graphics.
cosine_filter
- 一组取值为+/-1的随机序列，每两个数据之间插入3个0，然后将序列通过一个设计好的根升余弦滤波器，并用周期图法和Welch法分别绘制信号的功率谱。再次通过根升余弦滤波器后用stem函数绘图。-A set of values is+ /-1 random sequence inserted between every two data 3 0, then the sequence through a root raised cosine filter designed,
cosfilter
- 升余弦滤波器的matlab仿真程序，使用matlab2008编写-Raised cosine filter matlab simulation program, using matlab2008 write
QAM
- 编写一个含QAM传输的发送和接收模块 1)分别采用复基带仿真和实带通仿真两种形式 a) 实带通仿真时, 载波频率为符号率的4倍 b)发端采用滚降系数0.5的根号升余弦滤波器 2)画出Eb/N0=15dB时的接收波形(收滤波前),取100个采样 3)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) 统计误符号率和误比特率与Eb/N0的关系,画出曲线, 与理论计算的曲线相对比 -Prepare to send of one with QAM transmis
16QAm
- 采用MATLAB编程，产生一个16QAM基带信号，并进行实数倍插值计算。要求符号率为1 MSymbol/s，采用均方根升余弦滤波成形，滚降系数=0.5。产生{…1，0，1，1，…}的伪随机序列，经过映射、4倍成形滤波、FIR半带滤波、实数倍内插滤波，最后输出4.315倍时域/频域响应。给出信号序列经过各级滤波的时域、频域结果-Using MATLAB programming, resulting in a 16QAM baseband signal, and the real multiples
raisedcosinefilter
- Program for raised cosine filter
root_raise_cos
- 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
comm_eg_const
- Plotting Gray-coded Signal Constellations and Pulse Shaping Using a Raised Cosine Filter-Plotting Gray-coded Signal Constellations and Pulse Shaping Using a Raised Cosine Filter
filttre_rcosine
- raised cosine matching filter