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DSSS
- 设计一个有干扰的直接序列扩频通信系统， PN码由m序列产生器产生，经过高斯白噪声信道。在接收端接收到的信号包括“有用信号+高斯白噪声+干扰”，将接收信号进行解扩，判决，得到用户的信号检测结果，绘制不同的扩频增益（增益值为10，30，50）下，误比特率随信噪比Eb/N0的变化曲线。-Design of a direct sequence spread spectrum interference system, PN code generated by the m sequence generato
Periodogram-powe
- 平均周期图法和平滑平均周期图法估计功率谱 从经典功率谱估计周期图法原理入手，从理论上分析了其存在的局限性，借助Welch算法对其进行修正。依靠Matlab强大的数值分析和信号处理能力进行实验!! 用周期图法和welch法分别估计了一下信号的功率谱密度。采样频率200Hz，时间序列长度2048，FFT数据点数2048。其中welch法使用hanning窗，窗口长度600．-Average periodogram and periodogram smoothing method to est
ofdmsystemmatlab
- 基于能量检测和周期循环检测的认知无线电频谱检测matlab代码 用周期循环检测算法检测： 首先运行a.m程序，通过此程序运算得出循环频率a值； 再运行zhouqi.m程序，对a值进行确定，通过周期循环算法对信号进行检测； 用能量检测算法检测： 运行nengliang.m检测程序，使用能量检测对信号进行检测。 检测完毕，对检测性能进行分析。 -Cognitive radio based on energy detection spectrum detecti
OFDM
- Matlab入门级OFDM仿真，包括每个步骤的波形，星座图，频谱等 含循环前后缀，时域加窗等，适合刚接触OFDM的学习 -Matlab entry-level OFDM simulation, including each step of the waveform, constellation diagram, spectrum including cycles before the suffix, such as time-domain windowing for OFDM new t
dsss
- 直接序列扩频通信系统，实现PN码同步，采用串行滑动相关捕获相关峰-Direct sequence spread spectrum communication system, and PN code synchronization, sliding-related capture serial correlation peak
test0_fix_interfence
- 认知无线电中基于干扰图模型的动态频谱分配。此程序是基于固定干扰图模型的分析代码-Cognitive radio interference graph model based on the dynamic spectrum allocation. This procedure is based on the analysis of the fixed interference graph model code
new
- 钢琴声音频谱分析，电子音乐合成的源程序 以及合成声音wav文件。 huxuec@yahoo.com.cn-Piano sound spectrum analysis, the synthesis of electronic music synthesis of the sound source, as well as wav files. huxuec@yahoo.com.cn
Periodogram
- 利用周期图法对序列进行功率谱估计，数据窗采用汉明窗-Sequences using periodogram method for power spectrum estimation, the data window with Hamming window
minfft
- 细化频谱，比FFT程序更能精确的描述信号特征，程序完整，希望能给大家带来帮助-Detailed spectrum, more accurate than the FFT procedure described in the signal characteristics, procedural integrity, and hope we can help
Estimation
- 利用直接法和间接法、Welch法求功率谱估计，参数自设，有注释 -Using the direct method and indirect method, Welch France seeking power spectrum estimation, parameter from the set, there are comments
HHT-transform
- 本程序主要通过EMD和hilbert求IMF，作出HHT归一化能量谱图（三维图），边际谱图和瞬时能量图，并做完备性验证-The program primarily through EMD and hilbert seek IMF, to HHT normalized energy spectrum (three-dimensional map), the marginal spectrum and the instantaneous energy map, and do a complete v
auto_correlation
- 用Blackman-Tukey方法（自相关法）实现对任意输入的实序列函数x(n)作功率谱估计。-Using Blackman-Tukey method (autocorrelation method) to achieve the actual sequence of arbitrary input function x (n) for power spectrum estimation.
mpsound
- 录制一段个人自己的语音信号。对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；对语音信号进行加噪和去噪处理，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号；实现快录慢放、慢录快放等功能。-Record a person' s own voice signal. Of the recorded signal sampling draw sample after the speech signal time-domain waveform
MATLAB
- 基于能量检测的双门限频谱检测性能仿真研究-Detection based on energy detection performance dual threshold Simulation of the spectrum
mfnew
- 认知无线电频谱感知匹配滤波器检测仿真，选用FM信号，分析了虚警概率-Matched filter spectrum sensing cognitive radio simulation testing, the choice of FM signals, analysis of the probability of false alarm
Matlab_spectrum_analysis
- 基于matlab的信号FFT频谱分析与显示，含matlab代码-matlab spectrum analysis
music
- 《空间谱估计原理与算法》多重信号分类法估计matlab源代码-" Space Spectrum Estimation Principle and Algorithm" multiple signal classification method estimates matlab source code
BOC_BPSK
- GPS信号的BPSK调制以及BOC信号的功率谱的ｍａｔｌａｂ仿真程序，可以将两者结合起来比较学习-GPS signals BPSK and BOC modulation signal of the power spectrum matlab simulation program, you can compare the two to combine learning
EnergeDetection
- 关于认知无线电频谱感知的能量检测程序。希望大家互相交流！-On the energy spectrum sensing cognitive radio test procedures. Hope we can exchange ideas!
rect
- 矩形波函数，计算其频谱，幅度谱和相位谱，与理论值比较。-Rectangular wave function to calculate the frequency spectrum, amplitude spectrum and phase spectrum, compared with the theoretical value.