fourier

在机动目标跟踪中，机动目标模型是机动目标跟踪的基本要素之一，一般希望机动目标模型能准确表征目标机动时的各种运动状态。比较常用的模型有匀速运动(CV)模型、匀加速运动(CA) 模型、时间相关模型（Singer）和机动目标“当前”统计模型。上述模型均采用机动频率表征目标的机动情况。在应用当中，通常采用固定的机动频率，这就表示机动目标的机动时间是一定的，而实际上机动目标的机动时间是不断变化的，也就是说机动频率是不断变化的，采用固定机动频率必然会带来误差。采样周期在0.5—2S时，机动频率越小跟踪精度越高[1]，但机动频率仍然是固定值。本文提出的基于神经网络的机动频率自适应调整方法可以使机动频率随机动而变化，从而提高状态估计的准确性，提高跟踪精度。本文将小波神经网络用于机动目标跟踪中机动频率的自适应调整，该算法对机动目标“当前”统计模型中的机动频率进行实时修改, 从而自适应的改变机动频率,使跟踪算法与目标的真实状态更接近。该算法采用小波神经网络的离线训练，实时性好。(The maneuver of the maneuvering target is uncertain. The maneuvering frequency is constantly changeable, but traditionally it is beforehand determined as a constant based on the target state estimation in the state model of the maneuvering target. The maneuver of the maneuvering target makes the kinematics equation of the target model mismatch with the practical motion model and the tracking error will be increased. Based on the advantages of the self-learning, the rapid convergence rate and the nonlinear approximation ability of the wavelet neural network, it was put forward to be used in the field of target tracking in the paper. The new residual is used as the input of the wavelet neural network, the output of the network is used to adjust adaptively the maneuvering frequency of the CS model. The algorithm is more close to the real state of the target. The simulation results showed that tracking error can be reduced and the tracking accuracy can be improved.)

基于投影逼近子空间（PASTD）算法的DOA估计，PASTD算法可以快速度估计协方差矩阵的特征向量(doa estimation using pastd algorithm，pastd algorithm can estimate eigenvectors of covariance matrix quickly)

operate the library on windows operation

保证准确无误，是学习通信的好帮手，小波包分析提取振动信号中的特征频率，DC-DC部分采用定功率单环控制。( Ensure accurate communication is learning a good helper, Wavelet packet analysis to extract vibration signal characteristic frequency, DC-DC power single-part set-loop control.)

用于计算两组变量之间的同步指数，用matlab编写的代码(Two sets of variables used to calculate the index synchronization between the code written in matlab)

matlab入门程序90例 简单直接程序，通过matlab直接打开 非常适合初学者 (matlab entry procedures for 90 cases of simple and direct process, through direct open matlab very suitable for beginners)

数值分析实验报告!包含多个实验！ 实验一 非线性方程求根 实验二 线性代数方程组的解法 --------列主元Gauss消元法 实验三 线性代数方程组的解法 ——Gauss-Seidel迭代法等(Numerical Analysis of the experimental report! Contains more than one experiment! Experiment 1 Experiment 2 roots of nonlinear equations of linear algebraic equations the solution out PCA Gauss elimination method experiment trilinear solution of algebraic equations- Gauss-Seidel iteration method, such as)

方向图 包括 线阵 面阵 圆阵 有详细注释(Pattern including circular array of linear surface array detailed notes)

精通MATLAB图像处理，电子工业出版社， 该光盘文件中包括了全书所有实例对应的MATLAB M文件,以及用到的图片。所有代码按照章节存放在各个文件夹下，如“第2章”文件夹下存放了本书第2章所有的程序代码或实例代码,“第3章”文件夹下存放了第3章所有的实例代码，依此类推。(Proficient in MATLAB image processing, electronic publishing industry, the CD includes a book, document all instances of the corresponding MATLAB M files, and use the pictures. All of the code stored in accordance with sections in every folder, such as " Chapter 2" folder stored under Chapter 2 of this book to all of the program code or example code, " Chapter 3" folder stored under Chapter 3 of all example code, and so on.)

无约束多维极值问题的解决方法程序，matlab程序，具有很强的鲁棒性(Unconstrained multi-dimensional extremal problem solution procedures, matlab program, which has strong robustness)