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  1. 拉尔夫·温顿·里昂·哈特利(Ralph Vinton Lyon Hartley )(1888年11月30日至1970年5月1日)是美国电子研究员。他发明了Hartley振荡器和Hartley Transform ,并为信息理论的基础做出了贡献。

  2. 30 de nov. de 2021 · Ralph Hartley nació el 30 de noviembre de 1888 en Estados Unidos. Primero estudió en la Universidad de Utah, luego obtuvo un título también en la Universidad de Oxford. En su carrera trabajó, entre otros en el laboratorio de investigación de Western Electric Company o Bell Labs.

  3. Ralph Vinton Lyon Hartley (Spruce, 30 novembre 1888 – New Jersey, 1º maggio 1970) è stato uno scienziato e ricercatore elettronico statunitense. A lui si deve l'invenzione dell'oscillatore di Hartley e della trasformata di Hartley ed ha contribuito alla fondazione della teoria dell'informazione.

  4. Ralph Hartley. (1888-1970) Ralph Hartley graduated from University of Utah and went to Oxford in 1910 as one of the first Rhodes scholars, the same year as Elmer Davis and Edwin Hubble . He returned to the US to work for Western Electric, the manufacturing arm of the Bell Telephone Company. He developed an oscillating circuit that was used in ...

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  6. 哈特莱变换(Hartley transform) 1942年美国学者哈特莱(R.V.. L.. Hartley, 1890~1970)为了简化信号分析过程的数学计算,提高运算速度和效率,提出了一对与傅里叶变换相似,同属于正弦型的正交变换。. 中文名. 哈特莱变换. 外文名. Hartley transform. 应用学科.

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