parzen

由磁悬浮小球的状态空间模型计算出其鲁棒控制器，并在simulink模型中对鲁棒控制器的性能进行了验证。(Magnetic levitation ball from the state-space model to calculate the robust controller and in simulink model for robust controller performance is verified.)

MATLAB经典教程—从入门到精通的pdf，很好的一本书(MATLAB classic guide- from entry to the proficient pdf good a book)

求解无约束最优化问题的方法之一：levenberg_marquardt方法(levenberg_marquardt method)

说明：  BPSK调制解调过程，利用映射完成BPSK调制(BPSK modulation and demodulation process, using BPSK modulation mapping completed)

posicast control within .

录制一段个人自己的语音信号，并对录制的信号进行采样；画出采样后语音信号的时域波形和频谱图；给定滤波器的性能指标，采用窗函数法和双线性变换设计滤波器，并画出滤波器的频率响应；然后用自己设计的滤波器对采集的信号进行滤波，画出滤波后信号的时域波形和频谱，并对滤波前后的信号进行对比，分析信号的变化；回放语音信号；最后，设计一个信号处理系统界面。(Record a person s own voice signal, and recording the signal sampling draw sample after the speech signal time-domain waveform and frequency spectrum given filter performance indicators, using a window function method and the bilinear transform filter design and draw the frequency response filter then use the filter of their own design for the signal acquisition filtering, after filtering the signal to draw the time-domain waveform and spectrum, and filtering of signals before and after contrast, analysis of signal changes playback of voice signal Finally, the design of a signal processing system interface.)

this code will convert gray to rgb

sepia filter on image sepia.m

说明：  实现两电平she控制，并通过算法得到其调制角(The two-level she control is realized and the modulation angle is obtained by algorithm)

something about phisics