What-is-VQ

非线性曲线拟合是已知输入向量xdata和输出向量ydata，并且知道输入与输出的函数关系为ydata=F(x, xdata)，但不知道系数向量x。今进行曲线拟合，求x使得输出的如下最小二乘表达式成立： min Σ(F(x,xdatai)-ydatai)^2(Nonlinear curve fitting is a known input and output vectors xdata vector ydata, and know the relationship between the input and output functions for ydata = F (x, xdata), but do not know the coefficient vector x. As least-squares curve fitting expression today, find x such that the output of the establishment: min Σ (F (x, xdatai)-ydatai) ^ 2)

主要讲解雷达的工作原理以及matlab仿真过程(This an paper about radar how to work.)

IMU的惯性导航算法实现机制，通过引入非线性卡尔曼滤波算法提高定位的精度。(Implementation of inertial navigation algorithm based on IMU.The nonlinear Calman filtering algorithm is introduced to improve the positioning accuracy.)

Sylvester equations solving via the characteristic polynomial approach- using Sylvester operator s characteristic polynomial L

说明：  图像稀疏表示的MATLAB编程代码，有图(MATLAB sparse representation of the image programming code, a map)

The zip file contains 3 matlab files for solving ODE s and 3 other pdf files

介绍了其中处理EMD端点效应的方法，还有其中两种改进算法的程序，适合EMD的学者。(Introduces seven kinds of processing methods of endpoint effect the EMD, and one of the two kinds of improved algorithm procedures, suitable for scholars of the EMD.)

超声IUVS图像需要画边缘，手工画点，自动平滑(Need to draw the ultrasound IUVS image edge, hand-painted point, automatic smooth)

matlab编程中常用的一些程序，如一维单尺度及多尺度小波分解与重构。(matlab programming of commonly used procedures, such as a single-scale and multi-dimensional scale wavelet decomposition and reconstruction.)

代码实现了BPSK调制解调功能，包含成型滤波和硬判决模块。通过仿真出误码率曲线，并且画出理论曲线，验证了代码的正确性。(This code achieves the modulation and demodulation of BPSK.It includes the shaped filter and hard decision module.I plot the BER curve of BPSK and compared with the theoretical curve, I verify the correctness of the code.)