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本帖最后由 benemale 于 2010-7-4 20:34 编辑
Ultra-Wideband Pulse-based Radio: Reliable Communication over a Wideband Channel (Analog Circuits and Signal Processing) (Hardcover)
by Wim Vereecken (Author), Michiel Steyaert (Author)
Product Details- Hardcover: 268 pages
- Publisher: Springer; 1 edition (May 1, 2009)
- Language: English
- ISBN-10: 9048124492
- ISBN-13: 978-9048124497
Product Description
Ultra-Wideband Pulse-based Radio lays the foundations of a new radio transceiver architecture, based on the Ultra-Wideband pulse-based radio principle. Instead of a continuous-time modulated carrier, the pulse-based radio system uses short electromagnetic pulses with a wide spectral footprint. This has considerable advantages for the reliability of a wireless link in an indoor environment. However, what is not accounted for in most high-level theoretical perspectives, is that a wide transmission bandwidth opens up a Pandora’s box of many complications at receiver side. A real-world wireless channel, for example, suffers from multipath reflections: multiple, delayed versions of the same signal arrive at the receive antenna and start to interfere with one another, an effect that is known as intersymbol interference. Also, a wide transmission band is a wide open door for in-band interfering signals, caused by other transmitters in the same frequency band. |
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发表于 2009-4-26 09:19:06
