調(diào)制解調(diào)技術(shù)中英文翻譯資料-wenkub
2022-09-20 17:34:41 本頁面
【正文】 較廣泛，它具有很高的頻譜利用率。近年來由于放大器設(shè)計技術(shù)的進展，實現(xiàn)了調(diào)制方法成為可能。市場是發(fā)展的驅(qū)動力。我們要積極促進無線領(lǐng)域的科技進步、技術(shù)創(chuàng)新，為實現(xiàn)科教興國戰(zhàn)略，增強中華民族的綜合國力，為全球信息化及經(jīng)濟全球化環(huán)境下的國際社會與全人類的發(fā)展而積極貢獻力量。同時，競爭局面的形成，促使運營企業(yè)積極拓展新業(yè)務(wù)、新應(yīng)用，向用戶提供豐富的選擇，以滿足用戶多方面、多層次的需求?；仡櫼苿油ㄐ诺陌l(fā)展歷程，調(diào)制解調(diào)技術(shù)和個人通信的移動性以及無縫隙覆蓋多媒體綜合業(yè)務(wù)需求將愈來愈突出。泛歐的數(shù)字移動通信采用的是GMSK調(diào)制，而美國和日本的數(shù)字移動通信則采用QPSK調(diào)制技術(shù)。隨著調(diào)制技在不斷的發(fā)展，新的調(diào)制技術(shù)將可以帶來更好的頻譜效率和更高的功率效率。文章針對三種基本調(diào)制解調(diào)技術(shù)及其改進調(diào)制技術(shù)進行了詳細的仿真和分析，可見，選擇一種調(diào)制技術(shù)是根據(jù)信道特性和應(yīng)用來確定的。近年來，我們移動通信業(yè)務(wù)迅猛發(fā)展，已深入到社會生活的各個方面，面對移動用戶群的持續(xù)增長和新業(yè)務(wù)的層出不窮，移動通信體系要及時適應(yīng)甚至超前于市場需求的步伐。s mobile munication and the Internet development is extremely rapid, but our country at present mobile phone and the network user popular rate very are also low, facing our country 1,300,000,000 populations, our country has the very big development space in the network scale and the capacity the same time, the petition aspect formation, urges the operation enterprise to develop the new service, the new application positively, provides the rich choice to the user, satisfies the user variously, the multilevel , also has the very big development potential on the mobile munication and the Internet application must promote the wireless domain advance in technology, the technological innovation positively, for the realization rely on science and education to rejuvenate the nation strategy, strengthens the Chinese nation
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