搜索资源列表
syxgjxt
- 基于matlab的最佳基带传输系统仿真(升余弦滚降系统)-the best base-band transmission system simulation (or cosine roll-off system)
8QAM
- 利用Matlab仿真软件,完成如图1所示的一个基本的数字通信系统。信号源产生0、1等概分布的随机信号,映射到16QAM的星座图上,同时一路信号已经被分成了实部和虚部,后边的处理建立在这两路信号的基础上。实部、虚部信号分别经过平方根升余弦滤波器,再加入高斯白噪声,然后通过匹配滤波器(平方根升余弦滤波器)。最后经过采样,判决,得到0、1信号,同原信号进行比较,给出16QAM数字系统的误码。
pppp
- 求平方根升余弦滤波器系数的程序
16qam_channel_encode
- 一、 本程序采用16QAM调制方式,对一串2进制信源进行调制,采用(7,4)循环码对信源做信道编码,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,再对信号进行信道解码,画出采用信道编码技术和不采用信道编码技术的误比特率图。-First, this program uses 16QAM modulation mode, for a string of two binary source is modulated,
BPSK
- 1、对给出的数字0、1序列进行BPSK调制,调制成正负极性,并进行傅里叶变换. 2、滚将升余弦窗设计-1、making BPSK modulation for given 0、1 data serial.And make FFT change. 2、Raised-cosine window
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, this program uses 16QAM modulation mode, for a string of two binary source is modulated with a raised cosine roll-off function for base-ba
ofdmspectrum
- ofdm频谱特性 包括升余弦窗后 和加CP后的三种频谱特性比较-ofdm spectrum features include raised cosine window of post-processing after the three kinds of spectral characteristics of CP compared
fsk
- 在matlab上面对4fsk调制解调进行仿真,中间使用升余弦滤波器作为发送和接收滤波器-In the face of 4fsk modem matlab simulation, the middle raised cosine filter used to send and receive filters as
main
- 绘制升余弦滚降波形的眼图并功率图 xtuanna-Drawing Cosine waveforms and eye diagram xtuanna power
modulation_qpsk
- qpsk调制以及升余弦的理论仿真,采用Matlab实现-qpsk modulation and cosine of the theoretical simulation, using Matlab to achieve
BPSK
- BPSK信号升余弦调制,并进行相关解调,画出误码率曲线-BPSK signal modulation and demodulation
gen_qpsk_data
- 本代码主要用于QPSK数据生成与数据文件写入. 包括随机数据生成, 符号映射,以及发射的升余弦滤波. 最后将生成的文件写入指定的文件里面.-QPSK data generating and data write to file. Random data genrating, symple mapping, trasmitter suqart raise cose filter. At last, data are writen into the file.
qpskshapeing
- QPSK信号的根升余弦成型, 和QPSK信号的矩形成型-QPSK signal root raised cosine shaping And QPSK signal rectangular forming
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
matlab.rcos_dsp
- 基带升余弦matlab代码 有作于学习-MATLAB rcos
baseband-transmission-system
- 利用升余弦滤波器来接收基带信号的系统仿真,还有眼图分析-The use of the raised cosine filter to receive the baseband signal system simulation, and analysis of niose
Matched_Filter
- srrc根升余弦滤波及匹配滤波的仿真程序-srrc filter and matched filter
64QAM_baseband-system-transmitter
- 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
Desktop1
- 用MATLAB画平方根升余弦脉冲波形(滤波器模型与仿真方法)-Using MATLAB painting square root raised cosine pulse waveform (filter model and simulation methods)
bqpsk
- BPSK 与QPSK 调制解调系统的Matlab 仿真程序,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,并与理论曲线进行对比-BPSK and QPSK modulation and demodulation system Matlab simulation program, send and receive filters are root raised cosine filter roll-off fil