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WLAN仿真-发送机
wlan No Comments
设置完系统参数后,开始产生发送数据。
1. 产生随机的发送bit(tx_bits),这里不考虑信道编码。
2. QAM映射
3. 将数据映射到不同载波,形成OFDM符号
4. 产生pilot,并将pilot插入OFDM符号中
5. 加入dc和guard子载波
6. 进行ifft,将频域信号变到时域,并加入循环前缀
7. 对信号进行overlap window
8. 在时域产生short preamb
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CRC和RS的组合编码,自编程序,能正确运行通过。
CRC+RS+交织
编码:计算CRC-->RS-->交织
数据:19byte 21byte 49byte 49byte
解码:解交织-->校验CRC-->输出/解RS后输出-->CRC校验-->输出
交织以7x7求转置交织,元素以字节为单位,交织深度7字节
数据量:19byte---->49byte(中包)
小包:10byte=
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数据分组处理算法GMDH源代码是自组织数据挖掘的核心算法,具有很强的泛化能力,相比回归分析法可以处理小样本数据-GMDH packet processing algorithms source code is the core of self-organizing data mining algorithm, which has strong generalization ability, compared with regression analysis can deal with small
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用matlab编写的波包变换的程序,用于读取波群及小波包的数据-Wave packet transform programs written with matlab, wave group and wavelet packet is used to read data
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数据包传送源码程序,用MATLAB实现的压缩传感,各种kalman滤波器的设计。- Data packet transfer source program, Using MATLAB compressed sensing, Various kalman filter design.
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数据包传送源码程序,用MATLAB实现的压缩传感,一种噪声辅助数据分析方法。- Data packet transfer source program, Using MATLAB compressed sensing, A noise auxiliary data analysis method.
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AHP层次分析法计算判断矩阵的最大特征值,课程设计时编写的matlab程序代码,数据包传送源码程序。- Calculate the maximum eigenvalue judgment matrix of AHP, Course designed to prepare the matlab program code, Data packet transfer source program.
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比较了软阈值,硬阈值及当今各种阈值计算方法,数据包传送源码程序,内含心电信号数据及运用MATLAB写的源代码。- Comparison of soft threshold and hard threshold and today various threshold calculation method, Data packet transfer source program, ECG data and includes source code written in MATLAB.
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DSmT证据推理的组合公式计算函数,用MATLAB实现的压缩传感,数据包传送源码程序。- Combination formula DSmT evidence reasoning calculation function, Using MATLAB compressed sensing, Data packet transfer source program.
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数据包传送源码程序,相参脉冲串复调制信号,Matlab实现界面友好。- Data packet transfer source program, Complex modulation coherent pulse train signal, Matlab to achieve user-friendly.
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对信号进行频谱分析及滤波,数据包传送源码程序,Matlab实现界面友好。- The signal spectral analysis and filtering, Data packet transfer source program, Matlab to achieve user-friendly.
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GSM中GMSK调制信号的产生,在matlab R2009b调试通过,数据包传送源码程序。- GSM is GMSK modulation signal generation, In matlab R2009b debugging through, Data packet transfer source program.
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通过matlab代码,数据包传送源码程序,cordic算法的matlab仿真。- By matlab code, Data packet transfer source program, cordic matlab simulation algorithm.
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混沌的判断指标Lyapunov指数计算,插值与拟合的matlab实现,数据包传送源码程序。- Chaos indicator for Lyapunov index calculation, Interpolation and fitting matlab implementation, Data packet transfer source program.
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数据包传送源码程序,这是第二能量熵的matlab代码,均值便宜跟踪的示例。- Data packet transfer source program, This is the second energy entropy matlab code, Example tracking mean cheap.
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Achieve serial data acquisition, Wavelet packet analysis to extract vibration signal characteristic frequency, Import data files as input parameters matlab program is running.
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Data packet transfer source program, Independent component analysis for image processing, By matlab code.
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It contains positional PID algorithm, integral separate PID, Data packet transfer source program, Using matlab written narrowband noise occurs.
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