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We experimentally built a W-band photonics-aided millimeter-wave radio-over-fiber transmission system and demonstrated the delivery of up to 8192-ary quadrature amplitude modulation[QAM) signal.Discrete multitone signals are converted into 1-bit data streams through delta-sigma modulation and then modulated onto a 76.2 GHz carrier.An envelope detector is used at the receiver side for direct detection.The results prove that our proposed system can support 2048QAM and 8192QAM transmission while me... 相似文献
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提出并演示了一个光子辅助的集成雷达和通信系统,该系统利用光子辅助拍频在W波段产生毫米波信号。通过将正交相移键控(QPSK)信号编码到线性调频连续波(LFMCW)雷达信号上,实现了传感和通信波形的集成。一体化波形可以通过去啁啾分离通信信号与雷达感知信号,并通过脉冲压缩实现高分辨率感知。实验结果表明,在91 GHz频段内可实现单目标和双目标检测,感知精度约为2.0 cm。此外,成功实现了W波段下2 m、10 m和50 m传输距离的20 Gbit/s高质量无线通信。该系统还适用于各种成分的一体化波形,为高速通信和高分辨率雷达感知融合提供了有效参考。 相似文献
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We experimentally built a photonics-aided long-distance large-capacity millimeter-wave wireless transmission system and demonstrated a delivery of 40 Gbit/s W-band 16-ary quadrature amplitude modulation(QAM) signal over 4600 m wireless distance at 88.5 GHz. Advanced offline digital signal processing algorithms are proposed and employed for signal recovery,which makes the bit-error ratio under 2.4 × 10-2. To the best of our knowledge, this is the first field-trial demonstration of>4... 相似文献
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