2_TDOA

本人用石川法求齿轮的啮合刚度，完整版的程序，里面可以运行啮合刚度图(Meshing Stiffness of Gears Calculated by Ishikawa Method)

说明：  使用改进的遗传算法来优化一维周期稀疏线阵(Using improved genetic algorithm to optimize one-dimensional periodic sparse linear array)

随机调制信号下的模拟ppm，结合PCA的尺度不变特征变换(SIFT)算法，包括主成分分析、因子分析、贝叶斯分析。( Random ppm modulated analog signal under Combined with PCA scale invariant feature transform (SIFT) algorithm, Including principal component analysis, factor analysis, Bayesian analysis.)

PERFORMANCE OF M-QAM OVER GENERALIZED MOBILE FADING CHANNELS USING MRC DIVERSITY

用simulink中s函数实现离散系统传递函数(S function with simulink realization of discrete system transfer function)

说明：  使用MATLAB软件，实现TD-LTE系统Turbo编码器的设计。(Using MATLAB software to designe the turbo encoder of TD-LTE system .)

这是一个完整的OFDM通信系统仿真代码。包括信源编码信源调制，信道编码，信道估计，峰均抑制比等。实际程序可用直接运行。(This is a complete OFDM communication system simulation code. Including the source modulation source coding, channel coding, channel estimation, peak to average ratio suppression. The actual procedure can be run directly.)

ModBus水质分析仪CRC计算的接口STM32F2实现，此应用适用于市面大部分Modbus水质协议的CRC校验(ModBus water quality analyzer CRC calculation of the interface STM32F2 implementation, this application is applicable to most of the market Modbus water quality agreement CRC calibration)

在Matlab环境下用于计算CRC16的代码，本原多项式为X16+X15+X2+1，并提供测试文件。(In the Matlab environment for the calculation of CRC16 code, the primitive polynomial is X16+X15+X2+1, and provide the test file.)

QPSK开环载波同步技术研究 频偏估计算法(Open-loop carrier synchronization QPSK Research Frequency Offset Estimation Algorithm)