Reconnaissance Systems
For optical systems ESL developed one of the first digital image processing capabilities for aerial photography (both satellite and aircraft platforms). Various radio frequencies are also addressed in order to create a comprehensive capability in signal processing for a variety of listening devices. Tools developed emphasize the real time interaction of interpreters in order to facilitate rapid use of data intercepted. A primary mission of reconnaissance work was support of the Arms Control and Disarmament Agency during the 1960s and 1970s. Some of the unique developments of ESL in this field are: new application of digital signal processing and an early method of recording high speed digital data on analog media.
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