本文選題：超寬帶 + 認知無線電��； 參考：《蘭州理工大學》2017年碩士論文

【摘要】：認知無線電作為一種新興無線通信技術,有效緩解頻譜頻譜分配與利用之間的矛盾,得到了業(yè)界的普遍認可。超寬帶系統(tǒng)具有傳輸速率高、功耗低、抗干擾能力強、傳輸安全性高等特點在通信中得到廣泛應用,頻譜感知技術是決定認知無線電能否實現的核心技術。因此,研究基于認知無線電的超寬帶信號頻譜檢測有著重要的現實意義。本文主要研究三方面內容:認知超寬帶無線電的原理及關鍵技術;基于信號特征的無線頻譜檢測技術;基于主用戶信道模式的頻譜檢測感知算法。具體研究內容如下:1.把認知無線電的思想引入到超寬帶信號的檢測問題中,系統(tǒng)地研究了CR、UWB、CUWB技術的概念、模型、關鍵技術、發(fā)展現狀及發(fā)展方向。2.對現有的較為成熟的5種頻譜檢測技術進行對比研究,分析了各自的優(yōu)缺點。針對本地頻譜檢測問題,總結了檢測方法。3.研究提出了一種基于主用戶占用模型的單用戶檢測感知算法,并進行了性能分析,驗證了該算法具有較高的檢測性能。4.研究了基于超寬帶技術的軍隊訓練負荷監(jiān)控系統(tǒng)的方案設計,設計了UWB負荷監(jiān)控系統(tǒng)結構和各模塊功能。
[Abstract]:Cognitive radio, as a new wireless communication technology, effectively alleviates the contradiction between spectrum allocation and utilization. Ultra-wideband (UWB) systems have been widely used in communication because of their high transmission rate, low power consumption, strong anti-interference ability and high transmission security. Spectrum sensing technology is the core technology that determines whether cognitive radio can be realized or not. Therefore, the study of UWB signal spectrum detection based on cognitive radio has important practical significance. This paper focuses on three aspects: the principle and key technologies of cognitive UWB radio; the wireless spectrum detection technology based on signal characteristics; and the spectrum detection sensing algorithm based on primary user channel mode. The specific contents of the study are as follows: 1. This paper introduces the idea of cognitive radio into UWB signal detection, and systematically studies the concept, model, key technology, development status and development direction of CRU UWBU CUWB technology. This paper compares and studies five kinds of spectrum detection techniques, and analyzes their advantages and disadvantages. Aiming at the problem of local spectrum detection, this paper summarizes the detection method. 3. 3. A single user detection sensing algorithm based on the primary user occupancy model is proposed, and the performance analysis is carried out to verify that the algorithm has a high detection performance. 4. This paper studies the scheme design of military training load monitoring system based on UWB technology, and designs the structure of UWB load monitoring system and the function of each module.
【學位授予單位】：蘭州理工大學
【學位級別】：碩士
【學位授予年份】：2017
【分類號】：TN925;TN925

【參考文獻】

相關期刊論文 前9條

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本文編號：1895599