1D-FDTD

Code for design of derivative fillters

蚁群算法连续函数优化问题matlab程序(Ant colony algorithm for continuous function optimization problems in MATLAB programming)

对模拟信号抽样，然后进行离散傅里叶变换，利用自编DFT函数，得到频谱，然后进行频谱的还原。(Sampling the analog signal, then the discrete Fourier transform, DFT self function obtained spectrum and the spectrum reduction.)

包括数据分析、绘图等等,这个有中文注释，看得明白，对信号进行频谱分析及滤波，IMC-PID是利用内模控制原理来对PID参数进行计算，分析了该信号的时域、频域、倒谱，循环谱等,基于互功率谱的时延估计。( Data analysis, plotting, etc., The Chinese have a comment, understand it, The signal spectral analysis and filtering, The IMC- PID is using the internal model control principle for PID parameters is calculated, Analysis of the signal time domain, frequency domain, cepstrum, cyclic spectrum, etc. Based on the time delay estimation of power spectrum.)

描述了matlab关于图论的工具箱使用和应用，主要是英语显示的(MATGRAPH BY EXAMPLE)

Reduction in peak to average power ratio in OFDM.

说明：  本文阐述了扩展频谱通信技术的理论基础和实现方法，利用MATLAB 提供的可视化 工具Simulink 建立了扩频通信系统仿真模型，详细讲述了各模块的设计，并指出了仿真建模 中要注意的问题。在给定仿真条件下，运行了仿真程序，得到了预期的仿真结果。同时，利 用建立的仿真系统，研究了扩频增益与输出端信噪比的关系，结果表明，在相同误码率下， 增大扩频增益，可以提高系统输出端的信噪比，从而提高通信系统的抗干扰能力。 (This paper describes the theory of spread-spectrum communication technology and implementation methods based on the use of visualization tools provided by MATLAB Simulink to establish a spread spectrum communication system simulation model, described in detail the design of each module, and pointed out that the simulation modeling to note problem. In the given simulation conditions, running a simulation program to obtain the desired simulation results. Meanwhile, the use of the simulation system to study the spreading gain and the relationship between the output signal to noise ratio, results show that the same bit error rate, increased spreading gain can increase the system output signal to noise ratio, thereby enhancing communication system disturbance.)

Vector control of matlab

地震波阻抗反演，用于一维、二维褶积模型，其中梯度函数和目标函数根据自己的需要建立(Seismic impedance inversion, for one-dimensional, two-dimensional convolution model, in which the objective function and the gradient function according to their own needs to establish)

说明：  汽车动力学仿真（对比法拉力和奔驰的悬驾系统，）(vehicle dynamics simulation (compared to the Ferrari and Mercedes Overhanging drive system))