qsqusswn

plot of the hyperbolic paraboloid

雷达数据处理对于观测的目标位置数据（称为点迹）进行滤波处理，自动形成航迹，并且可以对下一个目标的位置进行估计预测。利用最小二乘算法（LMS）进行滤波处理，得到了比较稳定的航迹估计。 最小二乘方法是参数估计中一种较为常见的参数估计方法。对于雷达观测数据，在我们假定已经精确知道航迹的运动学模型之后，通过建立观测方程，即可以对于模型的参数，如初速度，初始位置和加速度等进行最小均方误差估计。采用序贯最小二乘的方法可以对观测数据进行实时处理，已对待估计参数进行实时更新，然后利用观测模型可以对 数据进行滤波计算。(Radar data processing for target position data observed (known as trace points) filter processing, automatic track, and can be estimated to predict the position of the next target. Using the least squares algorithm (LMS) filtering process, have been relatively stable track estimates. Least-squares parameter estimation method is a more common parameter estimation method. For radar data, we assume that the kinematic model has been accurately track after, through the establishment of observation equations, which can be the parameters of the model, as ever speed, acceleration, etc. initial position and minimum mean square error estimation. Sequential least squares method using the observed data can be processed in real time, has been to treat the estimated parameters are updated in real time, and then use observational data can be filtered model calculations.)

不用说的好，我们室主任开发的Photonics cyrestal band gap计算Fortran代码。注意不要忘了input文本。(Needless to say the good, our director of development Photonics cyrestal band gap calculation of Fortran code. Do not forget to pay attention to input text.)

用C或者matlab编写基2 FFT快速算法，输入点数是2的幂次方，序列视作既包含实部也包含虚部。要求一个函数计可以做正变换，也可以做反变换。编写输入序列，先进行正反向变换，得到离散频谱，再将离散频谱加载到输入端进行验证，从输出端获取序列，和原来的序列进行比较，看看是否相等。序列可随意设为2的幂次项！(Written by C or matlab base 2 FFT fast algorithm, the input power of 2 points is the sequence includes both the real part as the imaginary part is also included. Require a meter to do is change the function, you can also do the inverse transform. The preparation of the input sequence, first the forward and reverse transformation, discrete spectrum, discrete spectrum and then loaded into the input validation, access to sequence from the output side, and the original sequences were compared to see if equal. Sequence can be arbitrarily set to a power of 2 items!)

在matlab开发环境下的谱减法算法，主要用在了作者的语音增强算法当中。(in Matlab development environment spectral subtraction algorithm, which was spent mainly on the author's speech enhancement algorithm.)

数字图像阀值分割各种方法 最大熵 OTSU 双峰法 迭代法 分水岭算法 (Digital image threshold segmentation methods maximum entropy OTSU method of bimodal iterative method of watershed algorithm)

用C语言编写MATLAB 函数， 以用于DSP芯片上(Use the programming language C to write MATLAB function, col2im )

说明：  这个是LFM线性调频信号的模糊函数,一个是用公式来仿真，一个是定义来仿真，另外还有OFDM信号的模糊函数(the linear frequency mulptive)

里面有MATLAB控制工具箱的详细中文介绍，是控制领域人员学习MATLAB的绝好材料。(There are more Chinese introduction about MATLAB Control Toolbox, and it is an excellent material to learn MATLAB in the control area.)

matlab 下基于近邻函数值法则的聚类算法(Matlab-based neighbor function of the clustering algorithm rules)