科研之友
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摘要
We employed photonic radio frequency (RF) arbitrary waveform generation to demonstrate space-time compression of ultrabroadband wireless signals through highly scattering multipath channels. To the best of our knowledge, this is the first experimental report that explores an RF-photonic transmitter to both characterize channel dispersions in real wireless environments and generate predistorted waveforms to achieve focusing through the multipath channels. Our experiments span a three octave frequency range of 2-18 GHz, nearly an order of magnitude beyond the similar to 2 GHz instantaneous bandwidth reported in previous spatiotemporal focusing experiments relying on electronic waveform generators.
- 出版日期2013-12-1
