張 瓅, 秦開宇
(電子科技大學(xué),四川 成都 610054)
摘 要:實(shí)時(shí)頻譜分析儀可以對(duì)通信信號(hào)進(jìn)行實(shí)時(shí)測(cè)試,符合現(xiàn)代通信分析儀的發(fā)展趨勢(shì)。CCDF測(cè)量是實(shí)時(shí)頻譜分析儀的關(guān)鍵技術(shù)之一,對(duì)于測(cè)量多載波信號(hào)非常有用。它普遍應(yīng)用在2G和3G無線信號(hào)測(cè)量上。本文介紹了實(shí)時(shí)頻譜分析儀的總體框架,重點(diǎn)闡述了CCDF測(cè)量功能的原理和處理流程。并以O(shè)FDM系統(tǒng)(正交頻分復(fù)用)為應(yīng)用背景驗(yàn)證了這種算法的有效性。
關(guān)鍵詞:CCDF;OFDM;實(shí)時(shí)頻譜分析儀;PAPR;多載波信號(hào)
中圖分類號(hào):TM935.21 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1672-4984(2007)01-0040-03
The implement of CCDF in real-time spectrum analyzer
ZHANG Li, QIN Kai-yu
(University of Electronic Science and Technology,Chengdu 610054,China)
Abstract:Real-time spectrum analyzer can real-timely measure the communication signals. CCDF, which can measure multi-carrier signals very effectively, is one of the important technologies of real-time spectrum analyzer. Whats more, it is widely applied to the wireless signal measurement in 2G and 3G. This paper introduced the main software frame of real-time spectrum analyzer, and it focuses on the principle and processing flow of CCDF. The computer simulation,which bases on the background of OFDM, demonstrates the effectivity of CCDF.
Key words:CCDF;OFDM;Real-time spectrum analyzer;PAPR;Multi-carrier signals