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In this file we implemented a dwt watermarking method in matlab

用Matlab仿真OFDM系统时所需的载波映射及逆映射程序(Matlab simulation with the desired carrier OFDM system mapping and inverse mapping program)

turbo编码，可以根据不同应用产生1/2或者1/3码率的turbo码(the turbo program of matlab, can be used to prodece the turbo code with code rate of 1/2 and 1/3)

改进蚁群路径规划，主方向因子,在二维空间搜索路径(mproved ant colony path planning)

对一种电极控制对象的最基本pid控制程序，仅供参考。(Electrode control object of a basic pid control procedures for reference purposes only.)

为提高常规MUSIC算法的分辨率，仿真了求根MUSIC算法。注释详细，适合初学者(In order to improve the resolution of conventional MUSIC algorithm, simulated Root MUSIC algorithm. Detailed notes, suitable for beginners)

蚁群算法MATLAB代码实现，请注意修改变量，仅供参考。(Ant colony algorithm MATLAB code, please note that the modified variable, for reference only)

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). )

用于光学设计分析软件的计算各视场慧差的宏(The optical design and analysis software is used to calculate the field of view of each macro coma)

经典的猜数字游戏在matlab中的一种实现方法(The classic guessing game in matlab an implementation methodWith this program no longer have to worry about paper illustrations look good.)