摘 纳米二氧化钛要
凡是有能力进行信号处理的装置都可以称为滤波器，在近代电信设备和各类控制系统中，滤波器应用极为广泛，所以对滤波器的研究和生产历来为各国所重视。 本文以一阶和二阶低通滤波电路的典型模型为基础，分别从理论的角度上分析了频率特性，包括通带电压放大倍数 ，特征频率 和通频带截止频率 。然后通过EDA井冈山大学学报
仿真软件Multisim7中搭建电路原理图，运用其强大的仿真测试功能，并对设计出的电路原理图进行波特图示仪法、交流分析法以及参数扫描法作出分析，最终得到其频率特性，并分别与理论数值相比较，验证滤波电路的各项参数指标的正确性。之后，设计了一高阶低通滤波器，并得出相关结论。 最后，为方便分析者直观，形象的分析滤波器的特性，本文利用仿真波形的方式进行说明和对比。
关键词：晋中阳光农廉网滤波器，一阶，二阶，低通，仿真分析
Abstract
Those who have the ability to perform the signal processing device can be called filter, in modern telecommunications equipment and various control systems, the filter is applied widely, so the research and production of filter has always been valued by all countries.
This article based on the typical model of the first and second order low-pass filter circuit, respectively, from the theoretical point of view on the frequency characteristics, including the pass-band voltage amplification factor, the characteristic frequency and pass-band cutoff frequency. Then I setted up by the EDA simulation software Multisim7 in the schematic, the use of its powerful simulation test function, and design a circuit diagram Potter icon Miriam France, AC analysis, and parameter scanning method to analyze the end of its frequency characteristics, verify the parameters of the index of the filter circuit, and make sure the figure is right.Then designed a high-end low-pass filter,and draw some conclusions.
中餐宴会摆台主题设计Finally, to facilitate intuitive analysis by image analysis of the filter characteristics, we use the description and comparison of the simulation waveform.
2012奥运羽毛球男双决赛
Key words: Filter, First-order，Second-order, Low-pass, Simulation and analysis
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