wiener

利用matlab的m文件，仿真DPSK的差分相干解调法，从发送数据到接收数据，比较完整(Use matlab m files, simulation DPSK differential coherent demodulation method to send data to receive data from a relatively complete)

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). )

一个关于matlab实现的定点仿真程序，FPGA之前的浮点转定点内容(On a fixed-point simulation program matlab implementation, FPGA floating-point turn before the designated content)

对matlab有详细讲解，知识点全面，特别是例程特别多。相信大家都知道学这个主要就是看程序，别的都是浮云。(Right matlab detailed explanations, a comprehensive knowledge points, especially the routine is particularly high. I believe we all know that learning is to see this major program, other are floating clouds.)

递推极大似然法求解模型参数,matlab例程 (maximum likehood estimation for the parameter of the modal)

说明：  本程序适用于解决优化问题，达到某些问题的优化目标。(This procedure applies to solve the optimization problem, the optimization problem to achieve certain goals.)

simulate cellular automata

minimum spanning tree

是一个小波降噪的程序，里边包括了小波降噪的实例，有三种方法：默认阈值去噪；软硬阈值的去噪；强制性去噪。(Is a wavelet noise reduction program, including the inside of the Wavelet Transform instance, there are three ways: the default threshold denoising hard and soft threshold de-noising mandatory de-noising.)

2014年全国研究生数学建模竞赛D题第一问：重要果蔬筛选-规划问题。(2014 national study mathematical modeling contest D first asked: an important fruit and vegetable screening- Programming problem.)