codes

对carmaker软件进行了介绍，对汽车仿真有很大的帮助，促进汽车的生产。(Software for the carmaker introduced, car simulation of great help to promote the production of cars.)

参考Matlab提供的模块建立简化的三相锁相环的仿真模型，只保留必要的步骤，如abc-dqz只计算Vq，去除频率反馈模块和自动参数调整模块等。 建立单相锁相环的计算模型  简化单相锁相环的系统结构，保留必要的PI控制器等模块  验证并讨论输入信号频率在45-65Hz变化时设计的锁相环的动静态性能  仿真并分析三相输入信号包含谐波、不平衡和直流偏移时锁相环的锁相结果(Reference Matlab provides three-phase PLL module to establish a simplified simulation model, retaining only the necessary steps, such as abc-dqz counting only Vq, remove frequency feedback module and automatic parameter adjustment module.  simulation and analysis of the three-phase input signal contains harmonics, unbalance and DC offset PLL phase-locked Results)

进退法、0.618法、Powell法、罚函数法的程序设计, 用matlab编写，解优化问题(advancing and regressing method、0.618 method、Powell method、penalty function method, write in matlab, solve optimized problems.)

Reading ECG record from the MITBIH database

kalman filter通熟易懂，可以快速理解卡尔曼滤波器的原理(kalman filter through the familiar and easy to understand, you can quickly understand the principle of the Kalman filter)

雷达信号数字水印技术联合调频率捷变抗干扰(Radar jamming, radar waveform modulation frequency-agile multi-target anti-interference)

low_pass_filter_design_adaptive_modulation and demodulation

这里的东西主要是SHELL的精馏塔的模型，欢迎大家下载使用。(The main thing here is the distillation column model SHELL, welcome to download.)

贝叶斯压缩感知稀疏信号重构方法研究.PDF(Research on methods of signal reconstruction by Bayesian compressive sensing)

Simulation doppler effect in matlab