More is also to be spent on protecting satellite communications through encryption and frequency hopping.

美将会投入更多精力于加密和频率跳变等技术，以保护卫星通讯。

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FHS 1 slot Frequency Hopping Sequence.

FHS 1时隙跳频序列。

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The paper presents a new radar system based on frequency Modulated Interrupting Continuous Wave (FMICW) by exploiting the hopping frequency technique to improve the capability of HFGWR.

为提高高频地波雷达的抗干扰能力，提出了一种在线性调频中断连续波的基础上基于跳频技术的新高频地波雷达体制。

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Both sending and receiving stations would, however, need some mechanism to encode and control the frequency-hopping pattern.

ECONOMIST: Player-piano pioneer

U.S. Patent No. 2, 292, 387 for a "Secret Communication System" was issued to Hedy Kiesler Markey and George Antheil in 1942. (Markey was the surname of a husband she had divorced in 1940.) The frequency-hopping technology was not put to use in World War II, but it was employed in 1962 during the blockade of Cuba.

WSJ: Book Review: Hedy's Folly

Lamarr termed the technique "frequency hopping, " a forerunner of the spread-spectrum technology that is used today in communications applications such as Wi-Fi.

WSJ: Book Review: Hedy's Folly