contours_demo

详细讲述了直接序列扩频差分锁相环的文章，包含具体的算法结构，并附有仿真结果。(A novel differentially coherent delay-locked loop(DCDLL) for accurate code tracking is proposed for direct sequence spread spectrum systems. Due to the use of the differential decoder and exactly one correlator, the proposed scheme avoids the problems of gain imbalance. The tracking error variance is derived by linear analysis. When the proposed DCDLL scheme is applied in ranging with additive white Gaussian noise (AWGN) channel, the performance of the proposed DCDLL scheme is about 1.4 dB better than that of one-correlator tau–dither loop (TDL), and near that of noncoherent DLL.)

IIR数字滤波器的模拟，与一些计算过程的计算机化，是标准课本的一个计算过程的程序化(IIR digital filter simulation, and the computerization of some computational process, is the standard textbook procedure for the calculation of a)

微穿孔板是声学领域重要的研究分支。基于此的得到的噪音吸收有重要的应用前景。这是基于matlab实现的共振吸声程序(microperforatedpanel acoustic field is important research branch. For this to be the noise absorption has an important application. This is based on Matlab achieve the resonance absorption process)

说明：  象棋MTALAB 程序，还不错的，希望对喜欢象棋，并对MATLAB 感兴趣的同志有用。(MTALAB chess program, but also good, hope to enjoy chess, and of interest to gay MATLAB useful.)

matlab图像处理实例详解chap13——小波在图像处理中的应用(matlab image processing examples explain chap13- Wavelet in Image Processing)

说明：  非线性最小二乘优化问题以误差的平方和最小为准则来估计非线性静态模型参数的一种参数估计方法。设非线性系统的模型为y=f(x，θ)，常用于传感器参数设定。(64/5000 A parameter estimation method based on the minimum sum of squares of errors. Suppose that the model of the nonlinear system is y=f(x,), which is commonly used for sensor parameter setting.)

The Spacecraft Control Toolbox is composed of MATLAB m-fi les and mat-fi les, organized into a set of modules by subject. It is essentially a library of functions for analyzing spacecraft and missions. There is a substantial set of software which the Spacecraft Control Toolbox shares with the Aircraft Control Toolbox, and this software is in a module called Common. The core spacecraft fi les are in SC and SCPro along with special plotting tools in Plotting. The new CubeSat module demonstrates mission planning and simulation for nanosatellites. These fi ve modules are referred to together as the Core toolbox. Functions for estimation, orbit analysis, subsystem analysis, and detailed attitude control system examples are grouped in separate modules. All of the modules are described in the following table, including the add-on modules which are purchased separately.

自适应陷波器理论经典论文，喜欢的同学可以下(Theory of classical adaptive notch filter paper, students can enjoy under the)

图像的光流法计算的matlab程序,计算多重分形非趋势波动分析，基于人工神经网络的常用数字信号调制。( Image optical flow calculation matlab program, Calculate the multifractal trend fluctuation analysis, The commonly used digital signal modulation based on artificial neural network.)

David G. Lowe的SIFT特征点检测及匹配源代码，内有自己总结的各文件及参数功能的PPT文档(David G. Lowe' s SIFT feature point detection and matching source code, the summary of each document has its own functions and parameters PPT documents)