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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/71997


    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:[通訊工程研究所] 博碩士論文

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