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Transmitting signals over interstellar distances: three approaches compared in the context of the Drake equation

机译:在星际距离上传输信号:在Drake方程中比较了三种方法

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摘要

I compare three methods for transmitting signals over interstellar distances: radio transmitters, lasers and artificial transits. The quantitative comparison is based on physical quantities depending on energy cost and transmitting time L, the last parameter in the Drake equation. With our assumptions, radio transmitters are the most energy-effective, while macro-engineered planetary-sized objects producing artificial transits seem effective on the long term to transmit an attention-getting signal for a time that might be much longer than the lifetime of the civilization that produced the artefact.
机译:我比较了三种在星际距离上传输信号的方法:无线电发射器,激光和人工过境。定量比较基于取决于能量成本和传输时间L(Drake方程中的最后一个参数)的物理量。根据我们的假设,无线电发射器是最节能的,而从宏观上看,产生人工过境的行星大小物体似乎很有效,可以长时间发送引人注目的信号,而该信号的寿命可能比接收器的寿命更长。产生人工制品的文明。

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