五种时频分析方法Time_frequency-analysis

实现短时傅里叶变换，真的挺好用的，大家可以十四看看呀(TFRSTFT this is a program ,you can try it in you computer)

自适应算法,根据空域相邻块的运动水平,自适应地选择搜索策略,对于小运动块,充分利用中心偏置特性提高算法速度,对大运动块则利用多候选值算法力求得到真实的全局最小值,以确保对各种不同的图像序列都有较高的搜索速度和准确度(Adaptive algorithm, in accordance with the airspace adjacent to the level of block movement, adaptive search strategy to choose, for a small movement blocks, take full advantage of center-biased characteristics of algorithms improve the speed of movement of large pieces of the algorithm using multi-candidate seeks to be the true value of the overall situation minimum, to ensure a variety of image sequences have a high search speed and accuracy)

Matlab 模拟声波传数，包括基带调制、数字上变频、数字下变频、滤波、译码等(Matlab to simulate the sound wave number, including baseband modulation, digital frequency conversion, digital frequency conversion, filtering, decoding, etc)

说明：  用于建立电池模型用于电池管理，可进行嵌入使用(It is used to build battery model for battery management and can be embedded for use)

现代通信系统（mantlab）第二版 配套源码(modern communication system (mantlab) second version supporting FOSS)

GUI用户界面，通过输入缝宽、双缝间距、电子个数等参数，演示出电子双缝衍射的规律。要求： （1）由用户任意输入可调参数的界面； （2）根据电子双缝衍射的规律，得到不同入射电子数目时的衍射图像和动态演示动画； （4）模拟出观察屏上的电子双缝衍射的强度分布图样。 (GUI user interface by entering the slit width, double-slit spacing, number of parameters, to demonstrate the electronic double-slit diffraction law. Requirements: (1) any input by the user interface of adjustable parameters (2) According to the law of electronic double-slit diffraction, get a different number of incident electron diffraction images and dynamic animation (4) simulate the viewing screen on the electronic double-slit diffraction intensity distribution pattern.)

改程序为火星探测巡航段的轨迹优化程序，采用庞德里亚金极大值原理对轨迹进行优化(Change the trajectory of Mars exploration program for the cruise phase of optimization procedures, using the maximum principle Pound Calabria gold trajectory optimization)

分别用最速下降法、FR共轭梯度法、DFP法和BFGS法求解一个典型数学优化问题。(A typical mathematical optimization problem is solved by steepest descent method, FR conjugate gradient method, DFP method and BFGS method respectively.)

求图像峰值信噪比PSNR的代码matlab版(PSNR PSNR for the image code matlab version)

Instruction format. See the instruction format spec for details.