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单词 virtual height
释义

Definition of virtual height in English:

virtual height

noun
Radio
  • The height of a notional reflecting plane surface which in free space would give rise to the same travel time for reflected radio waves as an actual ionospheric layer.

Origin

1920s; earliest use found in Proceedings of the Institute of Radio Engineers.

Definition of virtual height in US English:

virtual height

noun
Radio
  • The height of a notional reflecting plane surface which in free space would give rise to the same travel time for reflected radio waves as an actual ionospheric layer.

Origin

1920s; earliest use found in Proceedings of the Institute of Radio Engineers.

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更新时间:2024/11/11 7:45:47