xy_fit

第一章 概述 辨识（Identification）、状态估计和控制理论在现代控制理论中是密不可分的，它们互相渗透。辨识和状态估计离不开控制理论的支持，控制理论的应用几乎不能没有辨识和估计技术。由此可见，辨识在科研与实际应用领域都有很高的实用价值。 所谓辨识，就是从含有噪声的输入、输出数据中提取被研究对象的数据模型。此数据模型只是过程的输入输出特性在某种意义下的近似，而近似的准确度一般取决于采样数据的精度以及辨识方法的合理性。 辨识的目的是根据过程所提供测量的数据等信息，在某种准则意义下，估计出模型的未知参数，其基本原理如图1.1所示： (Identification (Identification), state estimation and control theory in modern control theory are inextricably linked, they penetrate each other. Identification and control of state estimation theory is inseparable from the support of the application of control theory can hardly no identification and estimation techniques. This shows that the identification of the research and practical application areas have high practical value. The so-called identification, is to contain noise from the input and output data from the study was the data model. This data model is the process of input and output characteristics in a certain sense of approximation, while similar to the general accuracy of the data depends on the accuracy of sampling and identification method is reasonable. Identification wit)

光流（运动估计）经典算法Horn and Schunck算法MATLAB程序。(optical flow (Motion Estimation) classical algorithm Horn and Schunck algorithm MATLAB program.)

通过java调用matlab中的函数，包括如何做图，如何调用函数等等(java call matlab )

matlab program about optimal load flows

微分方程（这里指的是常微分方程）指含有一次、二次、乃至高次微分未知数的方程。是解决偏微分方程、数理方程的基础。有许多特殊函数，都是为了无法得出多项函数或超越函数型式的解析解的微分方程而定义出来。这些特殊函数之所以重要，是因为它们描述了自然界中的某些现象，例如，电子的活动、鼓皮的振动、钟摆的摆动等等。(Differential equations (in this case is the ordinary differential equation) means containing one, two, and even high-differential equations unknowns. Is to solve the partial differential equations, mathematical equations based. There are many special functions, are not drawn to a number of functions or functions beyond the type of analytical solution of differential equations which define them. These special functions are important because they describe the nature of certain phenomena, for example, electronic activities, drum skin vibrations, pendulum swing, and so on)

Wind Turbine exampel

提供了关于matlab图像处理中的案例演示，供参考学习和提高用。(Provides case studies on matlab image processing demo, with reference to learn and improve.)

水印的提取算法和加入算法互为逆过程，即为分段---FFT变换---提取水印---水印信息升维处理(The watermark extraction algorithm and the reverse process of each other to join algorithm, namely transform section--- FFT------ watermarking watermark l-dimensional processing)

说明：  提取图像中一个简单线性物体的特征并用卡尔曼滤波跟踪(Extracted image features of a simple linear objects and use Kalman filter tracking)

用于智能天线中自适应的移动目标的跟踪，其中有卡尔曼滤波的源代码(for smart antenna adaptive tracking moving targets, including Kalman filtering source code)