![Applied Sciences | Free Full-Text | Using Fast Frequency Hopping Technique to Improve Reliability of Underwater Communication System Applied Sciences | Free Full-Text | Using Fast Frequency Hopping Technique to Improve Reliability of Underwater Communication System](https://pub.mdpi-res.com/applsci/applsci-10-01172/article_deploy/html/images/applsci-10-01172-g001-550.jpg?1582213979)
Applied Sciences | Free Full-Text | Using Fast Frequency Hopping Technique to Improve Reliability of Underwater Communication System
![Electronics | Free Full-Text | Detection and Frequency Estimation of Frequency Hopping Spread Spectrum Signals Based on Channelized Modulated Wideband Converters Electronics | Free Full-Text | Detection and Frequency Estimation of Frequency Hopping Spread Spectrum Signals Based on Channelized Modulated Wideband Converters](https://pub.mdpi-res.com/electronics/electronics-07-00170/article_deploy/html/images/electronics-07-00170-ag.png?1570421159)
Electronics | Free Full-Text | Detection and Frequency Estimation of Frequency Hopping Spread Spectrum Signals Based on Channelized Modulated Wideband Converters
![At the beginning of World War II, she and composer George Antheil developed a radio guidance system for Allied torpedoes, which used spread spectrum and frequency hopping technology to defeat the threat At the beginning of World War II, she and composer George Antheil developed a radio guidance system for Allied torpedoes, which used spread spectrum and frequency hopping technology to defeat the threat](https://c8.alamy.com/comp/R1MYPB/at-the-beginning-of-world-war-ii-she-and-composer-george-antheil-developed-a-radio-guidance-system-for-allied-torpedoes-which-used-spread-spectrum-and-frequency-hopping-technology-to-defeat-the-threat-of-jamming-by-the-axis-powers-although-the-us-navy-did-not-adopt-the-technology-until-the-1960s-the-principles-of-their-work-are-incorporated-into-bluetooth-technology-and-similar-to-methods-used-in-legacy-versions-of-cdma-and-wi-fi-this-work-led-to-their-induction-into-the-national-inventors-hall-of-fame-in-2014-hollywood-photo-archive-mediapunch-R1MYPB.jpg)
At the beginning of World War II, she and composer George Antheil developed a radio guidance system for Allied torpedoes, which used spread spectrum and frequency hopping technology to defeat the threat
![Bombshell: The Hedy Lamarr Story | How Hedy Lamarr Developed a Secret Communications System | American Masters | PBS Bombshell: The Hedy Lamarr Story | How Hedy Lamarr Developed a Secret Communications System | American Masters | PBS](https://www.pbs.org/wnet/americanmasters/files/2018/05/Hedy_Spencer-Tracy_I-Take-This-Woman_1940.jpg)