wave2gray

说明：  原代码包括捷联惯导初始对准程序,实用性强,便于学习(chushiduizhun)

用matlab画出齿轮啮合面的三维模型，用于研究齿轮的啮合特性(Matlab to draw three dimensional models of gear meshing, used to study the gear meshing characteristics )

为了实现DOA和时延的联合估计,提出了一个无线通信中高分辨率的联合角度和时延估计方法,该方法不需要对参数进行搜索,利用空时矩阵的特征向量和特征值分别估计DOA和时延,通过特征值和特征向量的对应关系,估计的参数可以自动实现配对, 只要各路径信号的DOA和时延不同时接近此方法都可以适用,与JADE-MUSIC,JADE-ESPRIT和SI-JADE算法相比,该算法具有较好的鲁棒性和较小的估计误差。仿真结果证明了该算法的有效性。 (In order to achieve the joint estimation of DOA and delay, proposed a wireless communications joint angle and high resolution delay estimation method, the method does not require parameters to search using the space-time matrix eigenvectors and eigenvalues​ ​ , respectively, and the estimated DOA delay, by the correspondence between eigenvalues ​ ​ and eigenvectors, the estimated parameters can be automatically paired DOA and delay of each path as long as the signal is not close to this same method can be applied, with the JADE-MUSIC, JADE-ESPRIT and SI-JADE algorithm, the algorithm has better robustness and smaller estimation error. The simulation results show the effectiveness of the algorithm.)

it music on e dimentional doa estimation

本代码实现的是在实际情况下仿真DPSK调制信号在莱斯衰落信道下的各项性能分析(the code just for the DPSK signal of laisi)

说明：  利用prony算法提取信号的幅值、频率和衰减因子，删除了mathworks工具包中的bug(The Prony algorithm is used to extract the amplitude, frequency and attenuation factor of the signal, and the bugs in the MathWorks toolkit are deleted.)

协作分集通信中的一些子模块，包括CRC校验程序，卷积码编解码程序，QPSK调制解调程序(Diversity collaboration of a number of communication modules, including CRC checksum procedure, convolutional codes codec procedures, QPSK modulation and demodulation procedures)

for finding Induction machine model...

说明：  脉冲不变法变换巴特沃思低通滤波器设计 基于matlab仿真编程(pulse unchanged France transform Butterworth low-pass filter design based on Matlab simulation programming)

cs的omp恢复算法,使用恢复矩阵，观测矩阵(The physics of compressive sensing (CS) and the gradient-based recovery algorithms are presented. First, the di® erent forms for CS are summarized. Second, the physical meanings of coherence and measurement are given. Third, the gradient-based recovery algorithms and their geometry explanations are provided. Finally, we conclude the report and give some suggestion for future work.)