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已知信号x(t)=0.15sin(2*pi*f1*t)+sin(2*pi*f2*t)-0.1sin(2*pi*f3*t)，其中，f1=1Hz,f2=2Hz,f3=3Hz。采样频率为32Hz。（1）做32点FFT，求出其幅度谱；（2）做64点FFT，求出其幅度谱。

NT6008是继PI SC0163D之后一颗能兼容USB智能识别的QC3.0识别芯片，打破了支持苹果识别就不能通过高通QC3.0认证的传言。 联系人：唐云先生（销售工程）   手机：13530452646(微信同号) 座机：0755-33653783 （直线） Q Q: 2944353362 ...

NT6008是继PI SC0163D之后一颗能兼容USB智能识别的QC3.0识别芯片，打破了支持苹果识别就不能通过高通QC3.0认证的传言。 联系人：唐云先生（销售工程）   手机：13530452646(微信同号) 座机：0755-33653783 （直线） Q Q: 2944353362 ...

%球体 close all; G=6.67e-11; R=2;%球体半径 p=4.0;%密度 D=10.0;%深度 M=(4/3)*pi*R^3*p;%质量 x=-20:1:20; g=G*M*D./((x.^2+D^2).^(3/2)); Vxz=-3*G*M*D.*x./((x.^2+D^2).^(5/2)); Vzz=G*M.*(2*D^2-x.^2)./((x.^2+D^2).^(5/2)); Vzzz=3*G*M.*(2*D^2-3.*x.^2)./((x.^2+D^2).^(7/2)); subplot(2,2,1) plot(x,g,'k-'); xl ...

1.   日语假名及其发音一览     平  片  罗     平  片  罗     平  片  罗     平  片  罗     平  片  罗    假  假  ...

Optimal Guaranteed Cost Sliding-Mode Control of Interval Type-2 Fuzzy Time-Delay Systems

在微电网调度过程中综合考虑经济、环境、蓄电池的 循环电量，建立多目标优化数学模型。针对传统多目标粒子 群算法(multi-objective particle swarm optimization，MOPSO) 的不足，提出引入模糊聚类分析的多目标粒子群算法 (multi-objective particle swarm optimization algorithm based on fuzzy clustering，FCMOPSO)，在 ...

You probably have heard all about what you can do with the Raspberry Pi. This credit- card sized computer can be plugged into your TV or any HDMI monitor to replace a typical computer. This little device is used in many computer projects, DIY electronics projects and even as a learning tool for kids ...

The idea of writing this book arose from the need to investigate the main principles of modern power electronic control strategies, using fuzzy logic and neural networks, for research and teaching. Primarily, the book aims to be a quick learning guide for postgraduate/undergraduate students or desig ...

Recent years have seen a rapid development of neural network control tech- niques and their successful applications. Numerous simulation studies and actual industrial implementations show that artificial neural network is a good candidate for function approximation and control system design in solvi ...