一个Levenberg-Marqardt最优迭代算法 matlab开发程序

1、利用simulink中sfunction方法建立航天器姿态动力学模型和运动学模型； 2、利用linmod对非线性模型线性化； 3、姿态模型线性化后，利用极点配置（pole）方法求取控制参数； 4、将控制参数带入非线性模型仿真控制效果。(One using simulink sfunction method to establish the dynamic model and kinematic model of the spacecraft attitude 2, the use of linmod linearization of the nonlinear model Attitude model linearization, the use of pole configuration (pole) is used to obtain the control parameters 4, the control parameters into the nonlinear model simulation control effect.)

合成孔径雷达距离多普勒算法，模式为条带模式，条带模式为最基本的成像模式，有利于初学者掌握(SAR-RD；stripmap；for learning)

说明：  4元系统规则重复累积码的仿真程序，H矩阵构造乃个(4 yuan system rules repeat accumulate code simulation program, H is a matrix structure)

differential evolution

张雪英编著的数字语音处理书中的程序，内容比较全面，程序质量有所保证，对于刚接触语音的新手有所帮助。。。。(ZHANG Xue-ying edited book digital voice processing program. . . For the fourth year voice newbie help. . . .)

说明：  对文档图像进行分割，有效去除文档的边界黑色信息，(right Document Image segmentation, effective removal of a black border documentation information,)

测量6205深沟球轴承的故障振动加速度信号, 对信号进行时频分析, 利用经验模态分解方法将振动信号分解成不同特征时间尺度的固有模态函数,对每个固有模态函数进行Hilbert 变换得到Hilbert 谱,通过谱分析识别轴承的故障部位和类型, 证实Hilbert 谱的有效性(Measuring 6205 deep groove ball bearing fault vibration acceleration signal, the signal frequency analysis, empirical mode decomposition method to decompose the vibration signal into different characteristic time scales of intrinsic mode functions, the Hilbert transform of each intrinsic mode functions Hilbert spectrum, spectral analysis to identify the location and type of bearing failure, confirmed the effectiveness of the Hilbert spectrum)

save out a series of images from a movie in Matlab

eyediagram of qpsk signal

简单的多径信道matlab迫零均衡仿真。信道模型采用ITU标准 Cost207模型，参数可随意设定。适合初学者参考，系统简单，只有时频同步、均衡等内容。