analemma

Bayesian Compressed Sensing

二级倒立摆采用线性二次型控制程序，单位阶跃响应(Using double inverted pendulum linear quadratic control program, unit step response)

交流位置伺服系统因其存在参数时变、负载扰动以及电机的非线性等缺点， 很难为其建立准确的模型. 模糊（ fuzzy）控制具有无需建立被控对象的数学模型、鲁棒性好等 优点，但稳态精度差. 将模糊控制和PID 控制相结合，设计了Fuzzy-PID 双模控制器. 在论域内 用不同的控制方式分段实现控制，这样就综合了模糊控制和PID 控制的优点，克服了各自的缺 点. 该控制器结构简单、易于实现. 在半闭环交流位置伺服系统上所做的实验表明，采用Fuzzy- PID 双模控制器与采用经典PID 控制器相比，阶跃响应的调整时间减少了33. 7 ，并且无超 调，轨迹跟踪误差减小了47. 2 .(AC servo system because of the presence of parameter variations, load disturbances and non-linear motors and other shortcomings, it is difficult to establish accurate models for fuzzy (fuzzy) control without having to build a mathematical model of controlled object, robustness and good However, steady-state accuracy is poor. fuzzy control and PID control are combined to design a dual-mode Fuzzy-PID controller in the sub-region to achieve control on the different control methods, so that a combination of fuzzy control and PID control advantages to overcome their disadvantages. simply the controller structure, easy to implement. experiments on semi-closed loop AC servo system did show that the Fuzzy-PID controller is compared with the classic dual-mode PID controller, step response The adjustment time is reduced by 33.7 , and no overshoot, tracking error is reduced 47.2 .)

说明：  这个是LFM线性调频信号的模糊函数,一个是用公式来仿真，一个是定义来仿真，另外还有OFDM信号的模糊函数(the linear frequency mulptive)

i write code for image watermarking in matlab

说明：  提供坐标轴缩放、转换、设置的matlab环境模版。(Provide axes scaling, conversion, set the template of the matlab environment.)

说明：  COFDM的simulink仿真（QPSK）(The simulink simulation of COFDM (QPSK))

Speech Noise estimate

卡尔曼滤波基础和实践一书的matlab源码(Fundamentals of Kalman Filtering—A Practical Approach)

说明：  这是国外一个PLS工具箱，还有GUI，非常方便，包括了iPLS、biPLS、MWPLS等常用PLS方法(This is a PLS Toolbox abroad, as well as GUI, very convenient, including the iPLS, biPLS, MWPLS and other commonly used methods PLS)