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Design of 2FSK demodulator front - end

Author: ZhangZhiCong
Tutor: FuZhiZhong；QiuYiJie
School: University of Electronic Science and Technology
Course: Electronics and Communication Engineering
Keywords: FSK demodulator circuit design circuit emulation
CLC: TN763
Type: Master's thesis
Year: 2010
Downloads: 72
Quote: 0
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Abstract


FSK is a type of modulation technology that has been proposed long time ago. It is still playing an important role in the modern communication, since it posses the following three advantages: simple structure, robust anti-noise performance and high performance against attenuation. In this article, based on the requirements of a special project, the author designed a demodulator of 2FSK.Firstly, the author discusses the principle of 2FSK and its implementing method, then, based on the analysis of the receiving frequency, signal bandwidth, least receiving signal power, Bit Error Rate and the product cost, an appropriate design schedule was proposed to meet the task requirements. In the fourth chapter the author completes the particular circuit design and circuit emulation. In the fifth chapter the author tests the demodulator of 2FSK in the laboratory. It was demonstrated by the experimental results that the design of demodulator is feasible and meets the project’s requirements.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Basic electronic circuits > Modulation technique and the modulator,demodulator and the demodulator > Demodulation technique and demodulator
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