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A study of the ultra-wideband wireless propagation channel and optimum UWB receiver design

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1 Author(s)
Qiu, R.C. ; UWB Wireless Corp., Parsippany, NJ, USA

The paper addresses a crucial point in ultra-wideband (UWB) radio wave propagation, which is the spatial-temporal resolution of scattering objects into multiple frequency-dependent scattering centers. The effect contributes to the widely observed temporal dispersion of pulse-shaped transmit signals and their distortion, respectively. Particularly the latter is explained by (multiple) diffraction of the incident wave, leading to (multiple) band-limited impulse responses with characteristic frequency content, which in turn causes signal distortion and a degradation of the signal-to-noise ratio in a correlation receiver. We presented a new approach on UWB propagation modeling and optimum design of correlation receivers.

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Selected Areas in Communications, IEEE Journal on  (Volume:20 ,  Issue: 9 )