chengmi

求三阶传递函数的阶跃响应 其中对象采样时间为1ms。 采用专家PID设计控制器。在仿真过程中， 取0.001，程序中的五条规则与控制算法的五种情况相对应。 (Seeking third-order transfer function of the step response in which the object sampling time 1ms. PID controller is designed by experts. In the simulation process, taking 0.001, five rules and procedures in the control algorithm corresponding to the five conditions.)

MATLAB宝典 配套源文件,有相关书籍的话很适合大家学习(this is matlab .m source)

说明：  无迹卡尔曼滤波在目标跟踪中的应用MATLAB仿真(Application of untracked Calman filter in target tracking)

this is simple programe for mfcc feature extraction developed in matlab.

直接序列扩频系统（DS，Direct Sequence）又称为直接序列调制系统或伪噪声系统（PN 系统），简称为直扩系统，是目前应用较为广泛的一种扩展频谱系统。要传送的信息经伪随机序列编码后对载波进行调制。在发信端越冬用扩频序列去扩展信号的频谱，在收信端，用相同的扩频友序列进行解扩，将展宽的频谱扩展信号还原成原始信号。因为伪随机序列的速率远大于要传送信息的速率，所以受调信号的频谱宽度将远大于要传送信息的频谱宽度，帮称之为扩频(Direct sequence spread spectrum (DS, Direct Sequence) modulation system, also known as direct sequence or pseudo-noise system (PN system), referred to as direct expansion systems, is currently the more widely used as a spread spectrum system. To send the information encoded by the pseudo-random sequence of carrier modulation. End of winter in the letter to extend the signal with the spreading sequence of spectrum, in the end prepared to receive and use the same sequence spread spectrum despreading friends, broadening the spectrum to restore the original signal expansion signals. Because the rate of pseudo-random sequence is much larger than the rate of information to be sent, so the frequency spectrum by adjusting the width of the spectrum is much larger than the width of the information to be sent to help is called spread spectrum)

语音分析程序，包括语音分帧、短时能量计算等，对初学者很有帮助。(procedure for speech analysis,contains frame and energy caculate, it is usful.)

欢迎待下载，很好很轻大，谢谢，好代码,谢谢(a dood program)

基于matlab的小波图像降噪，亲测调试成功，但需使用8位深度图片方能完美(Based on the matlab wavelet image noise reduction, pro-test debugging success, but need to use 8-bit depth images can only perfect)

Gauss-seidel迭代与两种Jacobi迭代的matlab实现(Gauss-seidel iterative realization of the matlab)

Direct Torque Control System！！！Direct Torque Control SystemDirect Torque Control System(Direct Torque Control System! ! ! Direct Torque Control SystemDirect Torque Control System)