IbrahimTimeDomainMethod

intel 88E1111的数据手册，好不容易得到的，贴在这希望对大家有用(intel 88E1111 data sheet, finally get, posted in the hope that it would be useful)

DQ TRANSFORMATION OF IM MOTOR

Digital filter design

直接序列扩频，在matlab上的程序，及其仿真图，希望可以为matlab入门的人有所启发。(Direct Sequence Spread Spectrum on matlab program, and simulation map, hoping to inspire people to matlab entry.)

The code that will make your windows support automatic repositioning of their child controls

利用WNN对人脸进行模式识别的一些源程序，已经经过验证(WNN using pattern recognition of human faces for some source code, has been proven)

在运载体运动情况下,提出了一种适用于捷联惯导系统(SINS)初始对准的新算法,该算法以惯性空 间为过渡参考基准,即建立了初始时刻惯性坐标系(i0系)和初始时刻捷联惯组惯性坐标系(ib0系)两个惯性坐标 系。将捷联惯组坐标系(b系)与导航坐标系(n系)之间的初始对准姿态矩阵的实现分解为三步骤:(1)通过地理 位置和初始对准时间求解i0系至n系的变换矩阵 (2)通过惯导比力方程变形,引入测速仪速度辅助,求解从ib0 系至i0系的常值变换矩阵 (3)使用姿态更新算法实时计算b相对于ib0系的变换矩阵。最后,载车运动环境下的 初始对准试验结果表明航向角对准精度达到了0.1b(1R)。 (On the moving base, a new initial alignment algorithm for strapdown inertial navigation system (SINS) is proposed. In this algorithm, two special inertial frames, the initia-l time inertial frame (i0frame) and the initia-l time SINS body inertial frame (ib0frame), are defined and are selected as transition reference frames. The calculation of initial alignment direction cosine matrix (DCM) between SINS body frame (bframe) and nav- igation reference frame (nframe) is expanded into three parts: (1) the DCM betweeni0frame andnframe is easily obtained via local geographical coordinates and initial alignment time (2) by expressing SINS specific force equation inbframe and by the aid of external velocity log, the constant DCM fromib0frame toi0frame is achieved (3) attitude updating using gyro samples gets the DCM betweenbframe andib0frame. In the end, some vehicular tests are carried out on the moving base and the accuracy of azimuth reaches about 0.1b(1R). )

本程序采用三步法实现了连续两帧图像的运动估计(The program uses three steps to achieve the two consecutive frames of the motion estimation)

孙志忠书：偏微分方程数值解，第三章第三节，抛物方程的外推算法(extrapolation for parabolic patial differential equation)

利用matlab软件对.wav音频文件进行降采样的m文件(Down sampling .wav audio file )