▍1. 2345535436雷达系统建模与仿真
说明: 雷达系统仿真,雷达SAR成像,信号处理,模糊函数,波形发生,回波模拟,信道模拟,点迹航迹跟踪等等(Radar system simulation, radar SAR imaging, signal processing, ambiguity function, waveform generation, echo simulation, channel simulation, point track tracking, etc.)
说明: 雷达系统仿真,雷达SAR成像,信号处理,模糊函数,波形发生,回波模拟,信道模拟,点迹航迹跟踪等等(Radar system simulation, radar SAR imaging, signal processing, ambiguity function, waveform generation, echo simulation, channel simulation, point track tracking, etc.)
说明: 这是关于多输入多输出正交频分复用索引的代码(Multiple input multiple output orthogonal frequency division multiplexing index modulation simulation code)
说明: 5G NR 的全链路仿真C代码,对学习5G算法和做5G研发的有很大的参考价值。(5g NR full link simulation C code has great reference value for learning 5g algorithm and doing 5g research and development.)
说明: 基于music算法的均匀线阵的标量阵与矢量阵的方位估计(DOA estimation of scalar array and vector array based on music algorithm)
说明: 如题,产生线性调频信号及通过匹配滤波处理(The linear frequency modulation signal is generated and processed by matched filtering)
线性调频脉冲信号(Chirp信号)脉冲压缩实验,40MHz和400MHz时的chirp信号仿真以及STFT(短时傅里叶变换)。(Linear frequency modulated pulse compression experiment (Chirp signal), Chirp signal simulation at 40MHz and 400MHz, and STFT (short-time Fourier transform).)
wimax802.16e中的BTC编码仿真程序(WiMAX 802.16e in the BTC coding simulation program)
OSPA 距离计算 用于多目标检测使用的方法。 一键计算OSPA距离。使用前请仔细阅读readme 文件。严格按照步骤操作。(OSPA distance calculation. Perfect solution for OSPA calculation. Make sure you go through the read me file before using it.)
CA 码的产生,以及自相关,互相关函数,画出自相关互相关图(MATLAB语句简单易懂,适合新手)(CA code generation, as well as autocorrelation, cross-correlation function, drawn from the correlation cross correlation diagram (MATLAB statement, easy to understand, suitable for novices))
多径时变(多普勒效应)信道的文献讲解和相关仿真程序。(Multipath literature to explain the change (Doppler effect) channel and related simulation program.)
最大比合并功能实现,简单代码,容易看懂,MATLAB源代码(Functions to achieve the maximum ratio combining, simple code, easy to understand)
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。这些参数估计完成后,就可以进行数据解调了。先对数据部分进行完整的频偏补偿,然后根据估计的FFT窗口位置进行FFT运算得到频域的数据,进行解调。然后在对应于导频的子载波位置上提取出导频信息,根据导频信息估计出剩余定时误差以及剩余的信道响应误差,将误差量送入环路进行跟踪。当收到所有数据后,重新回到信号到达检测状态,进行下一次信号到达的检测和信号接收。 (good)
PCM文件采样率转换,其中可以自己定义采样率。作为WAV文件进行存储。效果较好。注意使用时确定源文件采样率。(PCM file sample rate conversion, which could define their own sampling rate. As a WAV file is stored. Effective. Note that when used to determine the source file sample rate.)
说明: 信号样本自相关分析,IQ两路绘制波形,频偏估计(Signal sample autocorrelation analysis, IQ two-way waveform drawing, frequency offset estimation)
基于matlab平台的LDPC编码译码仿真,很实用(LDPC coding and decoding simulation based on MATLAB platform which is really usefull.)
DXF轨迹图转G代码,有 直线,圆,圆弧,样条曲线,优化多段线,多段线。与下位机串口通讯!无法编译,是因为要先注册mscomm控件(DXF trajectories turn the G-code, line, circle, arc, spline curves to optimize the polyline, polyline. With lower serial communications! Not compile because the first registered mscomm controls)
产生相关MIMO衰落信道,输入发射、接收天线数,发射、接收相关矩阵,输出相关信道矩阵(Generation of related MIMO fading channels)