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a method to calculaate the bicubic spline fr nrecipes

ovsf码的编程算法， matlab实现， 可以直接使用(ovsf matlab)

数字锁相环，采用costas环的数字形式，实现跟踪载波相位，(Digital phase-locked loop, using the digital form costas loop to achieve carrier phase tracking,)

说明：  东华大学机器学习核密度估计大作业 第一部分是一个三维的彩色KDE估计图（最好用MATLAB画）；第二部分是测试图片的运动目标二值图像检测结果（运动员用白色像素，背景用黑色）(Big assignment of kernel density estimation for machine learning in Donghua University The first part is a three-dimensional color KDE estimation map (preferably drawn with Matlab); the second part is the detection result of the moving target binary image of the test image (athletes use white pixels, background use black))

这份资料比较详尽的介绍了matlab工具箱函数，里面有常用的函数一目了然，希望对大家有用：）(This information describes a more detailed matlab toolbox functions, there are commonly used functions at a glance, in the hope that useful:))

脉冲在光纤中的传输，包括色散效应，非线性效应损耗等(pulse in fiber)

ofdm frequency diversity.........

This file is about vertical handover

kalman滤波器的Matlab验证，以及迭代算法的实现(kalman filter Matlab validation, and iterative algorithm)

SIFT算法Matlab源码，用于图像匹配(SIFT algorithm Matlab source code for the image matching)