unitpower

这一课我们用 4 个按键来控制播放音乐。K1－K3 每个键播放一首音乐，K4 按键停止 音乐的播放 (this)

matlab设计的数字滤波器，有巴特沃斯，切比雪夫1，切比雪夫2，椭圆四种，分别都有高通，低通，带通几种，天津工业大学课程设计(matlab digital filter design, there Butterworth, Chebyshev 1, Chebyshev 2, oval four, each of which has a high-pass, low-pass, band-pass several, Tianjin Polytechnic University curriculum design)

Bit error of OOK modulation for UWB

qpsk modulation in Additive White Gaussian Noise channel simulation

用FFT分析离散时间周期信号的频谱实例，利用FFT分析离散时间周期信号的频谱，通过实验理解分辨率的概念和栅栏效应。(With a the FFT analysis the the frequency spectrum instance of of the discrete-time periodic signal, the use of the FFT analysis the the frequency spectrum of the discrete-time periodic signal, through the experiment understanding of the the the concepts and the picket fence effect of of the resolution.)

说明：  moead源代码，包括三种分解方式，WS,TE,PBI(Moead source code, including three decomposition methods)

This algorithm predicts the received signal strength for the mobile user to avoid fluctuation in received signal strength during localization of the mobile user

说明：  一个用来计算一维光子晶体全息干涉分布的程序，很好用的！(Used to calculate a one-dimensional photonic crystal holographic interferometry distribution procedures, very good use!)

power_triphaseline.rar,功率电子领域matlab仿真文件，已经验证过，程序运行正常(power_triphaseline.rar, Power electronics field matlab simulation file, has already been verified, the normal operating procedures)

this is audio retrieval based on the feature extraction such as FFT, STFT, and Power Spectral Density