基于智能天線的GPS信號采集與處理實驗系統
發(fā)布時間：2018-10-23 17:00
【摘要】：隨著GPS全球定位系統在軍事和民用領域越來越廣泛的應用，它容易被干擾的問題顯得日益嚴重。由于干擾的影響，GPS接收機性能變得不穩(wěn)定甚至完全失效。為了使GPS接收機能在干擾環(huán)境下正常工作，進行抗干擾GPS接收系統的研究就勢在必行。 本文在概述了GPS的工作原理以及目前常用的抗干擾的手段的基礎上，基于功率倒置算法抗干擾分析了接收系統的技術要求，結合軟件無線電的基本理論知識，設計了GPS智能天線信號采集與處理實驗系統，實驗系統的總體硬件框架包括天線、微波網絡、NI采集設備，實驗系統軟件部分包括基于LabVIEW平臺的數字信號處理單元與GPS軟件接收機，其中重點介紹了實驗系統軟件部分的實現方法。最后對系統功能進行了調試和驗證，系統功能完整，工作正常能夠滿足實驗處理系統的要求。 綜上所述，，本文基于軟件無線電思想，結合GPS定位原理設計和實現了GPS智能天線的信號采集與處理實驗系統。
[Abstract]:With the increasing application of GPS in military and civilian fields, the problem of easy interference becomes more and more serious. Because of interference, the performance of GPS receiver becomes unstable or even completely invalid. In order to make the GPS receiver work normally in the jamming environment, it is imperative to study the anti-jamming GPS receiver system. On the basis of summarizing the working principle of GPS and the commonly used anti-jamming methods, this paper analyzes the technical requirements of the receiving system based on the power inversion algorithm, and combines the basic theoretical knowledge of software radio. The GPS smart antenna signal acquisition and processing experiment system is designed. The overall hardware frame of the experiment system includes antenna, microwave network, NI acquisition equipment. The software part of the experiment system includes the digital signal processing unit based on LabVIEW platform and the GPS software receiver. The implementation method of the software part of the experimental system is introduced emphatically. Finally, the system function is debugged and verified. The system function is complete and can meet the requirements of the experimental processing system. To sum up, based on the idea of software radio and the principle of GPS positioning, the signal acquisition and processing experiment system of GPS smart antenna is designed and implemented.
【學位授予單位】：華中科技大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：P228.4;TN911.7
本文編號：2289903
[Abstract]:With the increasing application of GPS in military and civilian fields, the problem of easy interference becomes more and more serious. Because of interference, the performance of GPS receiver becomes unstable or even completely invalid. In order to make the GPS receiver work normally in the jamming environment, it is imperative to study the anti-jamming GPS receiver system. On the basis of summarizing the working principle of GPS and the commonly used anti-jamming methods, this paper analyzes the technical requirements of the receiving system based on the power inversion algorithm, and combines the basic theoretical knowledge of software radio. The GPS smart antenna signal acquisition and processing experiment system is designed. The overall hardware frame of the experiment system includes antenna, microwave network, NI acquisition equipment. The software part of the experiment system includes the digital signal processing unit based on LabVIEW platform and the GPS software receiver. The implementation method of the software part of the experimental system is introduced emphatically. Finally, the system function is debugged and verified. The system function is complete and can meet the requirements of the experimental processing system. To sum up, based on the idea of software radio and the principle of GPS positioning, the signal acquisition and processing experiment system of GPS smart antenna is designed and implemented.
【學位授予單位】：華中科技大學
【學位級別】：碩士
【學位授予年份】：2013
【分類號】：P228.4;TN911.7
【參考文獻】
相關期刊論文 前8條
1 陸迎光,仇潤鶴,孫曉靖;中頻軟件無線電接收機中信號傳輸和處理技術[J];電子技術;2003年11期
2 孫洪拓,王長青,馮繼東;美國GPS系統抗干擾技術的現狀與發(fā)展[J];光電技術應用;2004年03期
3 劉海波;吳德偉;董成喜;盧艷娥;;GPS抗干擾技術發(fā)展趨勢[J];火力與指揮控制;2011年01期
4 朱慶厚;信息戰(zhàn)中的衛(wèi)星通信及其對抗[J];航天電子對抗;1997年01期
5 孫智信;GPS導航系統的電子攻防對抗研究綜述[J];航天電子對抗;2001年01期
6 王際兵,趙明,姚彥;軟件無線電實現方案研究[J];通信學報;2000年03期
7 謝威,蔡躍明;軟件無線電接收機簡介及淺析[J];微電子技術;2001年03期
8 譚顯裕;GPS在導航戰(zhàn)中的作用及其干擾對抗研究[J];現代防御技術;2001年03期
本文編號：2289903
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