svpwm400

模拟通信系统中的DSB-AM仿真，利用其原理在理想环境相对其进行的仿真。(Simulation of Communication Systems Simulation DSB-AM, using the principle in the ideal environment relative to the simulation.)

Discrete Cosine Transformation

说明：  流场的本征正交分解，降阶，数据分析，提取流场中的主要流动结构(Proper Orthogonal Decomposition)

这是个二级倒立摆模型的建模仿真，程序很重要，是研究算法的必备程序。(This is a level 2 inverted pendulum model　Program is very important, is the essential procedure of the algorithm.)

说明：  信号的希尔伯特变换 可以提取信号的顺时针夫 瞬时相位 瞬时频率(Hilbert transform of signal can extract the instantaneous frequency of clockwise instantaneous phase of signal)

simulink中直扩，跳频的实现方案，其中有3种不同的调制方式，和跳频点设计。(simulink in DSSS, frequency hopping implementation proposals, including three different modulation and frequency hopping point design.)

learn AR process

说明：  install_guide.rar，matlab说明，初学者必看(install_guide.rar,matlab,help for new user)

说明：  把I、Q 两路信号分别作FFT ,找出频域内信号的幅度,即可算得两路分量的幅度一 ％致性 把I、Q两路信号合成一个复数信号,作FFT ,对得到的频谱求镜像抑制比。(The I, Q signals, respectively, for the two FFT, to identify the range of frequency domain signal can be considered two-way range of 1 weight of the letter I, Q synthesis of two-way signal a plural signal for FFT, to obtain the spectrum for image rejection ratio.)

基于matlab的DCT图像压缩算法 （压缩效果对比）(DCT-based image compression algorithm matlab )