modem_16QAM

这是周建兴的《matlab从入门到精通》第6章的所有源代码，都可以运行的出来，和课本上的一样，(This is Zhoujian Xing' s " matlab from entry to the proficient," Chapter 6, all the source code, you can run out, and textbooks on the same)

说明：  基于超外差的瞬时测频方法的研究。请多多指教(superheterodyne based on the instantaneous frequency measurement methods. Please exhibitions)

Linear dynamical system. This set of functions performs inference and learning of a linear Kalman filter model. Inference is carried out via forward-backward smoothing, and learning is accomplished via the expectation maximization algorithm.

利用svm进行分类器 很方便实用 强大 简介(Use svm classifier 13# highest feature index 3# kernel parameter-d 1# kernel parameter-g 1# kernel parameter-s 1# kernel parameter-r 270# number of training documents 117# number of support vectors plus 1 )

InFace Tool box for matlab

介绍matlab各种常用命令，让初学者轻松从入门到精通的电子书。(Matlab introduce a variety of commonly used commands, so that easy for beginners from entry to master e-book.)

用于求一个信号的斜率，通过构造一个滤波器来实现的，绝对正确。(For seeking the slope of a signal, to be achieved by constructing a filter, absolutely correct.)

吉布斯定轨法。 输入：轨道上任意三个点的位矢(R1,R2,R3)； 输出：质点在R2端点时的速度V2；ierr是个判断符号，返回的ierr是零的话，就说明‘R1,R2,R3’共面，如果ierr是1的话说明‘R1,R2,R3’不共面(正常情 况下，要构成轨道的话，‘R1,R2,R3’一定共面 ，即ierr是零，如果ierr是1的话说明输入的‘R1,R2,R3’不共面不能构成轨道。 此函数用于：任意给定三个空间共面的向量，可以确定质点在R2处的速度V2，也就得到了轨道上的一个状态向量(R2,V2),调用前面的函数就可以确定其轨道，及任意时刻的状态。(Gibbs set the track method. Input: track any three points of the bit vector (R1, R2, R3) output: particle at R2 endpoint speed V2, ierr is a judgment symbol, The ierr that is returned is zero, then, it means' of R1, R2,, R3, ' coplanar, if ierr is 1, then description' of R1, R2,, R3, ' not a total surface (under normal circumstances, you want to constitute a track, then,' of R1, R2, R3, ' a certain total surface, ierr is zero, if ierr is an instructions to enter the words ' of R1, R2, R3' coplanarity can not constitute a track. This function is used: for any given three space vector of the surface, can determine the particle at the speed V2, R2 also track a state vector (R2, V2), call the previous function can determine its orbit, and at any time of the state.)

A MATLAB based iterative threshold selection algorithm for cooperative sensing in a cognitive radio network.

关于惯性导航技术中的一个小的利用四元数算法求解姿态的程序，简单实用(Inertial navigation technology on a small initial alignment procedures to achieve a calculated INS s initial posture)