| 摘要 |
A height-determining radar utilizing both direct and multipath signals comprising a radar transmitter and receiver and means for measuring the variation of the pulse widths of the received radar signal, the variation being caused by fluctuating multipath contribution to the received signal, and further comprising means for calculating the target height h from the equation h=cR tau B/4e, where c is the speed of light, R is the target range, tau B is the pulse width variation and e is the radar height. The multipath variation may be enhanced by varying the linear polarization of the emitted radar signal.
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