以實務軟體定義無線電實現線性階梯頻 率調變之收發機;Implementation of Linear Step Frequency Modulation Transceiver with a Realistic SDR Platform

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Title:	以實務軟體定義無線電實現線性階梯頻率調變之收發機;Implementation of Linear Step Frequency Modulation Transceiver with a Realistic SDR Platform
Authors:	廖信棋;Liao,Shin-Chi
Contributors:	通訊工程學系
Keywords:	頻率調變;無線通訊;軟體定義無線電;Chirp Communication;Wireless Communication;Software De ne Radio;Frequency Modulation
Date:	2016-08-15
Issue Date:	2016-10-13 14:11:02 (UTC+8)
Publisher:	國立中央大學
Abstract:	線性階層頻率調變(Linear Step Frequency Modualtion ,LSFM)，屬於Chirp Communication 的一種，擁有線性調變脈衝的特性，很適合無限的通訊環境，常被用於軍方雷達使用上。Chirp 如果以聲音設備撥放，聽起來會像是鳥兒鳴叫，因此得名。起先，這樣的訊號是在1994年，由Ho mann 教授為了雷達應用而設計出來，後來到了1947年，由IEEE 院士Sidney Darlington 更進一步發展，將其改良為現在熟知的樣子，脈衝壓縮雷達。近年來，物聯網的議題越來越受到重視，因此低功號的通訊也因此崛起。而線性階層頻率調變，即擁有低功號、對督普勒效應免疫...等特性。本論文會先以軟體模擬線性階層頻率調變，設計出一套規格後，將線性階層頻率調變以硬體實現，與硬體的化簡，並評估其複雜度。最後將自製軟體定義無線電線平台，結合硬體，將線性頻階層率調變 (LSFM)發射至空中，並以此平台去接收，觀察線性階層頻率調(LSFM)變在不同的距離、環境會有那些不同的反應。;Wtih Communication Technology improvement, a new conept of Radio has borned, Software De ne Radio.Typically Radio comminication System were imple- mented by analog circuit, inorder to adjust variance communication syatem, SDR replace some Baseband module with digital circuit. It support user a platform which can realize di erent communication system with a general platform. In this paper, I will implement Linear Step Frquency(LSFM) , which is a kind of radar technology that have pulse compression characteristic, in SDR platfom.By doing some experi- ment, realize the signal in variance enviroment performance.
Appears in Collections:	[Graduate Institute of Communication Engineering] Electronic Thesis & Dissertation

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