全數(shù)字接收機(jī)中插值濾波器的設(shè)計(jì) 全響應(yīng)線性調(diào)制信號的插值問題
DESIGN OF INTERPOLATION FILTER FOR ALL DIGITAL RECEIVER-ON THE INTERPOLATION PROBLEM OF FULL RESPONSE MODULATION SIGNALS
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摘要: 接收機(jī)的全數(shù)字化實(shí)現(xiàn)是近年數(shù)字通信研究的一重要課題。插值濾波器的設(shè)計(jì)問題是接收機(jī)全數(shù)字化實(shí)現(xiàn)的核心問題之一。本文對全響應(yīng)線性調(diào)制信號,給出了一個(gè)插值準(zhǔn)則。對帶限傳輸?shù)那闆r給出了一插值公式。以系統(tǒng)脈沖響應(yīng)為升余弦滾降函數(shù)為例,利用理論分析和數(shù)值分析的方法驗(yàn)證了插值公式的可行性和有效性,并給出了16-QAM信號的計(jì)算機(jī)仿真結(jié)果。
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關(guān)鍵詞:
- 全數(shù)字接收機(jī); 插值濾波; 全響應(yīng)調(diào)制信號
Abstract: All digital implementation of receiver is a main topic on digital communication recently. The design of interpolation filter is one of the important problems for all digital implementation of receiver. In this paper, for full response linear modulation signal, a interpolation criterion has been proposed. An interpolation formula is presented on bandwidth-limited transmission signal. For example, using the raised consine roll off function as the system pulse response, the feasiblity and effectiveness on the interpolation formula has been certified by theoretical and numerical analysis. The computer simulation result on 16-QAM signal is given. -
樊平毅,馮重熙.全數(shù)字接收機(jī)中一種級波相位恢復(fù)的新方法.通信學(xué)報(bào),1992, 13(6): 30-37.[2]樊平毅,馮重熙.全數(shù)宇接收機(jī)中插值算法的研究.中國電子學(xué)會(huì)電路與系統(tǒng)學(xué)會(huì)第十一屆年會(huì)論文集,桂林:1993年11月，273-276.[3]姚彥,梅順良,高葆新.數(shù)宇微波中繼工程.人民郵電出版社,1990年8月.[4]R,adbel D, Marks R J. An FIR estimation filter based on tie sampling tie.wew. IEEE Trans. on ASSP, 1985, ASSP-33(2): 455-460.[5]Order M. Meyr H. Digital filter and square timing recover. IEEE Trans. on Common. 1988, COM-36(5): 625-611.[6]奧平毅,馮重熙.時(shí)鐘提取致字算法中的相位跳變問題.首屆中國數(shù)字通信學(xué)術(shù)會(huì)議論文集,西安:1993年6月,340-345.[7]樊平毅.全響應(yīng)調(diào)制信號接收的全數(shù)字處理算法的研究:[博士論文].北京:清華大學(xué)電子工程系,1994. -
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