Signal-data-preprocessor

有两个代码文件，是分别计算微带贴片天线设计时背馈和侧馈两种情况下的天线尺寸的，很全很精确！(There are two code files, which separately calculate design of microstrip patch antenna fed back and the side-fed both cases, the antenna size, it is all very precise!)

用欧拉角表示的飞行器姿态运动学方程在大角度时会出现奇异现象,而采用四元数来 表示,则可以避免这个问题。因此,飞行器运动学方程都采用四元数来表示。而飞行器的控 制规律都采用欧拉角来表示,且欧拉角表示姿态角比起四元数更加形象,更易于被人理解, 所以,在飞行器控制系统仿真设计的时候,需要四元数与欧拉角之间的转换。给定1 个欧拉 角,对应1 个四元数,因而欧拉角到四元数之间这种一一对应的关系使得欧拉角到四元数的 转换比较容易。但是,1 个四元数通常有1 个或者2 个欧拉角与之对应,它们之间不是一一 的对应关系,因而,四元数到欧拉角之间的转换比较困难。一般文献或者参考资料上的转换 仅仅适于欧拉角在- 90°～ + 90°之间的情况[1 ] 。文献[ 2 ,3 ]中给出了滚动轴在- 90°～ + 90° 之间变化,俯仰轴、偏航轴在- 180°～ + 180°之间变化的四元数到欧拉角的转换公式。本文 提出了滚动、俯仰和偏航3 个轴的欧拉角均在- 180°～ + 180°之间取值的全角度转换算法, 经过数字仿真证实,这个算法是完全正确的、而且很实用。(Euler angles of the spacecraft attitude kinematics equation at large angles appear strange phenomenon, and quaternion , You can avoid this problem. Therefore, the aircraft kinematic equations using quaternion to represent. Aircraft control The system of law Euler angles and Euler angles attitude angle than the the quaternion more image easier to be understood, Therefore, in the design of aircraft control system simulation, you need to convert between quaternions and Euler angles. Given an Euler Angle corresponding to a quaternion, which this one-to-one relationship between the Euler angles to quaternion makes Euler angles to quaternion Conversion is relatively easy. However, a quaternion usually have one or two corresponding Euler angles between them than eleven The correspondence relationship, therefore, the quaternion to convert between the Euler angle is relatively difficult. General literature or reference conversion Only suitable for Euler angles- 90 ° to+ 90 ° betwe)

粗糙集工具箱 可以进行粗糙集上下近似集的计算，重要度等等 属性约简 决策分类等等(Toolbox rough sets rough sets can calculate the upper and lower approximations, importance, etc., etc. Classification Decision Attribute Reduction)

说明：  通过循环谱分析信号的方式达到对各种数字通信信号的调治识别,这是一种很好的方式,具体实现算法有FAM,SSCA,SCOUT等，(Through the cycle of signal spectral analysis approach to achieve the various digital communication signal modulating recognition, this is a good way to achieve a specific algorithm FAM, SSCA, SCOUT, etc.)

利用matlab仿真产生混沌序列的程序，长度维数都可选(Chaotic sequence generated by matlab simulation program, the length dimensions are optional)

这个是对16QAM各种界的一个整理，给出了仿真程序，对于初学者来说具有重要的意义。(This is a finishing 16QAM various circles, the simulation program, for beginners is of great significance.)

unified model of bss

ofdm 的仿真与实现，可以直接运行的，run为运行文件(ofdm fangzhenyushixian)

卷积码编译码matlab实现，译码采用viterbi译码，并且右边验证误码率的程序，本人毕业论文，高分通过，因为网上不少程序有误，特此上传，供大家参考学习。(Convolutional code encoding and decoding matlab implementation, decoding using viterbi decoding and bit error rate of the right of verification procedures, I thesis, score by as many online programs are wrong, hereby uploaded for your reference study. )

全相位FFT的matlab的程序实现，大致可一明白怎么实现APFFT(All Phase FFT of the matlab program, roughly one to understand how to achieve APFFT)