TAILIEUCHUNG - Phần mềm xác định radio P11

The subject of software radio emerged as a ‘hot topic’ in mobile communications in the early 1990s, when many people saw the technology as a solution to the problems of complex RF and IF processing required in modern multimode/multiband mobile terminals. Today, software radio is seen more as a technology to enable the reconfiguration of terminals by download. 1 Such reconfiguration can be achieved at all stages from design, through production, to post purchase use by the consumer. | Software Defined Radio Edited by Walter Tuttlebee Copyright 2002 John Wiley Sons Ltd ISBNs 0-470-84318-7 Hardback 0-470-84600-3 Electronic 11 Software Download for Mobile Terminals Paul Bucknell and Steve Pitchers Philips Research Laboratories The subject of software radio emerged as a hot topic in mobile communications in the early 1990s when many people saw the technology as a solution to the problems of complex RF and IF processing required in modern multimode multiband mobile terminals. Today software radio is seen more as a technology to enable the reconfiguration of terminals by Such reconfiguration can be achieved at all stages from design through production to post purchase use by the consumer. This chapter begins by introducing the concepts of software reconfiguration by download and then describes some of the important software technology issues. Standards security and software architectures are then discussed. In the near term the commercial benefits of software download are initially being reaped at the higher layers of the protocol stack rather than through air interface reconfiguration. Such applications are not restricted to the field of mobile communications - the chapter thus includes a brief description of the present status and anticipated advances in software download for digital television - a global high growth consumer market. The potential use of software download to reconfigure the air interface in a mobile phone terminal on the fly is examined. To exemplify the issues involved in such reconfiguration we describe the implementation of a practical demonstration of on-the-fly reconfiguration of air interface parameters and algorithms making use of a wireless web browser. We present details of the procedures and protocols associated with such a reconfiguration and conclude with a brief discussion of the future of software downloading. 1 Early North American research focused on pure software radio the former approach whereas in .

• Kĩ thuật Viễn thông
• Xác định radio
• phần mềm radio
• trình điều khiển radio
• phát thanh
• kỹ thuật SDR
• Ứng dụng công nghệ RFID
• Công nghệ RFID
• Xác định vị trí container trong cảng container
• Xác định vị trí container
• Định danh sử dụng sóng Radio
• Quản lý cảng