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QAM

于 2010-06-11 发布文件大小:1KB

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Quadrature amplitude modulation is a method of combining two amplitude-modulated signals into a single channel, thereby doubling the effective bandwidth. QAM is used with pulse amplitude modulation in digital systems, especially in wireless applications

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matlab_image
matlab图像预处理，包括灰度化，对数变换，直方图均衡化，线性平滑滤波，中值滤波，自适应滤波，图像锐化，图像二值化，各类边缘检测算子等等(matlab image preprocessing, including gray-scale and logarithmic transformation, histogram equalization, linear filtering, median filtering, adaptive filtering, image sharpening, image binarization, all kinds of edge detection operator, etc.)

2009-05-06 00:02:32下载

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kroki
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2012-01-12 01:14:44下载

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pso
滤波器设计是信号处理的核心问题之一,Matlab软件在多个研究领域都有着广泛的应用。本文介绍了基于Matlab环境下,用窗函数设计法实现FIR数字滤波器的设计,并阐述了与以前人们常用的设计方法的区别,给出了设计实例。仿真结果表明,设计结果的各项性能指标均达到指定要求,且设计过程简便易行。 (The design of filters is a core problem in signal processing. MATLAB software iswidely used inmany research fields. This article introduces themethod ofusingwindow function to design FIR digital filters based onMATLAB and its differences from the tradi- tional designmethods. And itgives a design example. The simulation shows that the design results canmeet the requirements verywell and the design procedure is very simple and practica.l )

2010-07-31 16:48:32下载

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