Abstract | ||
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This paper initiates a new investigation of optimum transmission waveforms in the presence of per-path pulse wave shape distortion - a physical mechanism unique to impulsive signals. First, the transient electromagnetic analysis is carried out to derive, for the first time, closed-form expressions for the impulse responses of several canonical channels that are suitable for communication engineers. Second, numerical calculation using the inverse Fourier transform of the frequency-domain expressions is compared with the derived closed-form expressions, to verify the validity of these derived impulse responses. Third, propagation mechanisms responsible for multipath and per-path pulse shape distortion can be clearly identified using the closed-form impulse responses. Finally, using these closed-form expressions as a departure point, optimum transmission waveforms determined by a Fredholm integration equation are investigated, for different physical mechanisms, including one path or no multipath (wedge), two paths (rectangular building) and more than two paths (two half plane waveguide). |
Year | DOI | Venue |
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2009 | 10.1504/IJUWBCS.2009.026448 | IJUWBCS |
Keywords | Field | DocType |
time domain utd/gtd,int. j. ultra wideband,time reversal. reference to this paper should be made as follows: zhou,ray tracing,pulse distortion,c. and qiu,deterministic channel modelling,r. xxxx 'pulse distortion and optimum transmit waveform for pulse-based uwb communications',uwb,optimum waveform design,fourier transform,frequency domain,time domain,fredholm integral equation,impulse response,time reversal,ultra wideband,pulse shaping | Multipath propagation,Waveguide,Waveform,Impulse (physics),Electronic engineering,Pulse wave,Fourier transform,Ultra-wideband,Engineering,Distortion | Journal |
Volume | Issue | Citations |
1 | 1 | 1 |
PageRank | References | Authors |
0.54 | 10 | 2 |
Name | Order | Citations | PageRank |
---|---|---|---|
Chenming Zhou | 1 | 47 | 5.03 |
Robert C. Qiu | 2 | 42 | 7.89 |