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卡尔曼滤波器的简单实现，预测航迹、观测航迹与滤波航迹(Simple Implementation of Kalman Filter)

调试ok，sht30温湿度传感器，基于stm32平台(Debugging OK, sht30 temperature and humidity sensor, based on STM32 platform)

基于光混频器和锁相环的零差相干通信仿真模块，可观察锁相动态过程(Simulation of Homodyne Coherent Communication Based on Optical Mixer and PLL)

Q变换有关的一些matlab程序，实现时频域的地震数据重建(Some matlab programs related to Q transformation)

1、目标速度引起的失真，时间膨胀因子10%、chirp中心频率偏移5%。 2、超高速运动对脉冲压缩的影响，多普勒频移补偿(Distortion caused by target speed, time dilation factor 10%, and chirp center frequency offset 5%. Effects of ultra high speed motion on pulse compression and Doppler frequency shift compensation)

这是用MATLAB编写的tank模型代码，可以供水文相关专业学生做论文使用(This is written in MATLAB tank model code, you can water related papers for students to use)

说明：  整车三自由度汽车模型，在传统二自由度操纵稳定性模型的基础上考虑了纵向力的影响，车速不再为定值。(Based on the traditional two degree of freedom handling and stability model, the three degree of freedom vehicle model considers the influence of longitudinal force, and the vehicle speed is no longer a fixed value.)

复杂曲面，可用于超精密车床铣床测试精度标准件(Complex surface, which can be used to test precision standard parts of ultra-precision lathe milling machine)

说明：  Multi-channel revolutions counter based on Tiva Launchpad

基于Weber公式的齿轮啮合刚度计算公式(calculation of gear mesh stiffness based on Weber)