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MATLAB-OFDM.rar
- 根据OFDM的基本原理, 利用MATLAB编写 OFDM系统仿真的程序,通过分步执行,能够比较清 楚地了解OFDM实现的整个过程,熟悉每一步变化 的数据特征。对掌握OFDM的原理和熟悉MATLAB 仿真都是非常重要的,仿真的最后给出了该OFDM 系统仿真的误码率。其中qpskmod.m 为QPSK调制 的函数 qpskdemod.m 为QPSK解调的函数 comb.m 为产生加性高斯白噪声的函数 giins.m 为往信号中 插入保护间隔的函数 girem.m 为从接收信号中去除
Demodulation
- 数字信号解调(接收端),包括:“删除干扰噪声信号”,“从载波信号中提取原始信号”,“滤波器滤波”,“用PSK解码,把图形变成数字信号”。-Digital signal demodulator (receiver), including: " to remove interference noise signal," " carrier signal extracted from the original signal," " filter" ,
16qam
- 16-QAM基带传输系统的Matlab仿真 实现了主要模块二进制信息源输入,16QAM调制,发射滤波器,接收滤波器,采样,均衡,信号检测,16QAM解调,信息还原输出,产生BER曲线图。-16-QAM base-band transmission system Matlab simulation to achieve the main source of information input module binary, 16QAM modulation, fired filter, receiv
bpsk
- 上传一个bpsk信号matlab源代码,主要就是bpsk通信信号的发送,传输以及接收-From a BPSK signal matlab source code, which is BPSK communication signals to send, transmit and receive
OFDM_R_matlab
- 使用matlab模拟OFDM信号接收全过程。-OFDM signal using matlab simulation of the entire process of receiving.
source_and_receive_simulation
- 信号源仿真,信号成型,4QMA调制,QPSK,阵列信号接收-source simulation,Signal shaping ,4QAM,QPSK,array signal receive
UWB_PPM_RECEIVER
- 这是一个超宽带PPM接收机的程序,用于接收超宽带信号,是用MATLAB编程的-This is an ultra-wideband PPM receiver procedures for receiving ultra-wideband signals,and it is programmed MATLAB
cic
- 在信号处理中,信号发射时,信号通过载波,调制,以电磁波的形式发射出来 在接收端,射频信号通过天线接收,超外差式等方式进行处理,变频到中频 然后通过数字技术对中频信号进行处理,此时的中频信号采样率很高,多达几十兆赫 而要解调出来的信号很小,此时就要经过滤波来得到我们需要的信号 如果直接设计滤波器,阶数会非常庞大,软件,硬件设备都承受不了 因此,一般常用的技术是进行下变频处理,其主要技术就是通过抽取滤波进行下变频 常用的滤波器就是CIC抽取, 希望可以帮助一些坛友解决基本的问
07950213
- 扩频通信系统仿真 ——系统将基带信号(即信息)的频谱扩展至很宽的频带上,然后再进行传输,即将欲传输的信息数据用伪随机序列编码调制,实现频谱扩展,然后通过信道编码发送出去;接收端采用与发送端完全相同的伪随机序列作为本地解扩信号进行相关处理,以恢复信息,最后进行解调,完成整个系统的接收。-Simulation of spread spectrum communication system- the system baseband signal (ie, information) be extende
bimodal-noise
- 在复杂的电子系统中,影响信号接收的很多噪声为非高斯噪声,这些噪声是没有预料到的,以致破坏了接收机的功能,研究表明:这些噪声可以看成双模噪声,双模噪声从整体上讲属于非高斯噪声。-In complex electronic systems, many of the signal received by a non-Gaussian noise, the noise is not anticipated, resulting in damage to the receiver function, re
LFM
- LFM的信号的产生,性能分析和模糊函数,LFM信号接收的匹配滤波器输出-LFM signal generation, performance analysis and fuzzy functions, LFM matched filter output of the received signal
Blueteeth-Frequecy-Hoping
- 蓝牙跳频系统用simulink的仿真.系统主要包含信号传输,信号接收,谱分析以及无码分析部分-The system of Blueteeth Frequency hoping worked under simulink
ssbxinhao5102
- 一个简单的单边带调制水下语音通信过程的实现,包括信号仿真和信道仿真已经信号接收处理-A simple single-sideband modulation underwater voice communication process, including the signal simulation and channel simulation signal receiving and processing
easy
- GPS接收机的模拟接收程序,基于Matlab开发,对GPS信号接收结算的理解有很大帮助-Simulation of GPS receiver program, based on Matlab development, are of great help to the GPS signal receiving Settlement Understanding
code
- 使用MATLAB实现跳频通信系统的仿真,构建蓝牙跳频通信系统的各组成模块,包括信号传输,信号接收,谱分析和误码分析部。 -Using MATLAB to achieve frequency hopping communication system simulation, the Bluetooth frequency hopping communication system to build the constituent modules, including signal transmis
OFDM-BER-computation
- ofd估计信道性能,计算误比特率,包含信号发射,信道估计,信号接收。在高斯信道,采用qdpsk调制解调。-ofd channel estimation performance, bit error rate calculation, comprising a signal transmitter, channel estimation, signal reception. In the Gaussian channel, using qdpsk modem.
SNR
- AWGN信道下,QPSK的数字调制与解调包括误码率、误比特率和星座图及信号接收端分布图。-AWGN channel, QPSK digital modulation and demodulation include bit error rate, bit error rate and constellation and signal receiving terminal distribution.
OFDM_rece_matlab
- 接收端采用的算法和程序流程与发送端发送的OFDM符号的帧结构有关系。具体的帧结构,以及定时估计,频偏估计,剩余误差跟踪的算法可参考算法说明文档。这里对程序的流程进行说明。 首先根据短训练字的特性进行相关运算,进行信号到达检测,当检测到相关值大于门限一定次数后,认为有信号到达。然后根据长训练字的特性,进行相关运算,进行OFDM符号FFT窗口起始位置的估计。估计出FFT窗口的位置后,先在时域进行小频偏的估计,将两个长训练字进行小频偏补偿后,进行FFT运算,根据FFT运算的结果进行整数倍频偏的估计
雷达系统
- 雷达系统信号流程仿真,从信号产生直到信号接收的整个过程(Radar system signal flow simulation, from the signal generation until the whole process of signal reception.)
BDhuang
- 多通道和单通道接收到的北斗信号数据,利用接收到的北斗数据(.dat .txt文件),进行解析,得到初始伪距,平滑伪距,载波相位,并计算其标准差,并画图。(The Beidou signal data received by multi-channel and single channel are analyzed by using the Beidou data (. Dat. TXT file). The initial pseudo range, smooth pseudo range an