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Titlebook: RF Imperfections in High-rate Wireless Systems; Impact and Digital C Tim Schenk Book 2008 Springer Science+Business Media B.V. 2008 Digital

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樓主: Covenant
21#
發(fā)表于 2025-3-25 07:21:18 | 只看該作者
Discussion and conclusions, broadband wireless systems has been reported in many contributions over the last few years. A first reason is the high spectral efficiency, which is achieved by both techniques: OFDM places the subcarriers very close together and MIMO applies multiple spatial branches to transmit multiple parallel
22#
發(fā)表于 2025-3-25 08:34:10 | 只看該作者
23#
發(fā)表于 2025-3-25 13:52:06 | 只看該作者
24#
發(fā)表于 2025-3-25 19:14:23 | 只看該作者
ication partners within each measurement cycle. This multi-user ability is achieved by ordering sensor transmit times in a Time Division Multiple Access scheme. The system performance was evaluated by use of a prototype system at 2.4?GHz that was able to achieve an accuracy of centimeters at a range
25#
發(fā)表于 2025-3-25 23:16:44 | 只看該作者
l as non-uniform current distribution that depend on the geometry, frequency, and scan angle. This complicated parameter dependence results from mutual coupling effects observable among all elements in the array. It is usually difficult to explain and formulate the mutual coupling phenomenon, which
26#
發(fā)表于 2025-3-26 02:36:28 | 只看該作者
l as non-uniform current distribution that depend on the geometry, frequency, and scan angle. This complicated parameter dependence results from mutual coupling effects observable among all elements in the array. It is usually difficult to explain and formulate the mutual coupling phenomenon, which
27#
發(fā)表于 2025-3-26 07:35:08 | 只看該作者
on over a di?cult, i. e. , time-varying and frequency-selective mobile ch- nel. About a decade or research in many institutes around the world has been devoted to this challenge, exploiting the opportunities gi978-90-481-7757-8978-1-4020-6903-1
28#
發(fā)表于 2025-3-26 09:04:54 | 只看該作者
29#
發(fā)表于 2025-3-26 12:48:03 | 只看該作者
Multiple-antenna OFDM systems,dered. Since the properties of the wireless channel, and the understanding hereof, are crucial for the design of this kind of systems, this chapter introduces a model for the wideband MIMO wireless channel. This is followed by a review of the basics of MIMO, OFDM and MIMO OFDM. This chapter derives
30#
發(fā)表于 2025-3-26 17:50:10 | 只看該作者
Design and implementation of a MIMO OFDM system,ynchronisation of the MIMO OFDM system is regarded in Sections 3.3 to 3.5. The algorithms are designed to exploit the transmission structures proposed in Section 3.2. First, Section 3.3 proposes a method for frequency synchronisation of the MIMO OFDM system for an unknown fading channel. Following t
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