biyunshuanjiance

说明：  可以很好的结合现有的信号数据进行分析和处理，得到一定优化效果(Can be a good combination of existing data analysis and signal processing, to a certain optimal results)

时频分析方法提供了时间域与频率域的联合分布信息，清楚地描述了信号频率随时间变化的关系。(Time-frequency analysis method provides a time-domain and frequency domain, the joint distribution of information that clearly describes the signal frequency versus time relationships.)

关于铁路轨道激光平顺度检查仪的使用说明，对仪器功能、使用范围和注意事项进行了详细说明。(On the railway track laser smoothness tester instructions, the instrument features, application scope and matters needing attention are discussed in detail.)

基于Matlab平台将LDPC码与64QAM结合进行仿真，得出误码率曲线图。(LDPC codes based on Matlab platform will combine with 64QAM simulation results BER curve.)

SSB vs DSB-SC Modulation Matlab code

一个用于离散信号时间自动回归预测的matlab程序(A discrete signal time automatically regression prediction matlab program)

使用BEM方法迭代轴向切向诱导因子a和b(compute a and b of wind blade with BEM method)

using graphics in matlab 02 b

FDTD.m 程序包括程序相关变量的定义，网格的尺寸的划分，激励源的设置及基于FDTD的圆柱谐振腔迭代分析。其中通过改变空间离散度dr和采样点个数nmax，进行分析得出结论；且空间步长dt与dr有关，可得出空间步长对结果影响。(FDTD.m program includes the definition of program-related variables, set the meshing of size, the excitation source and the FDTD-based iterative analysis of cylindrical cavity. By changing the space in which the number of discrete sampling points of the dr and nmax, the conclusions drawn the analysis and space step dt and dr related space step can be drawn the impact on the results.)

说明：  基于matlab中的simulink，进行16QAM的仿真搭建。包括了基带信号发生器，串/并模块，模块1，载波调制模块，高斯白噪声信道，模块2，误码率计算器等，能够较好地实现16QAM的调制解调。(Based on the Simulink of MATLAB, the simulation of 16QAM is built. It includes baseband signal generator, serial / parallel module, module 1, carrier modulation module, Gaussian white noise channel, module 2, bit error rate calculator and so on. It can achieve 16QAM modulation and demodulation well.)