GPS for Newbies

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gpsn_cover_lg GPS design is based partly on ground-based radio navigation systems developed in the early 1940s that were used in World War II. These systems were named LORAN and Decca Navigator and were focused on knowing where the enemy was so they could either attack or retreat depending on the size of the forces.

Additional inspiration for modern day GPS systems came when Sputnik was launched by the Soviet Union in 1957. A team of scientists monitored Sputniks radio transmissions and discovered that because of the Doppler Effect, the frequency of the signal being transmitted was high as the satellite approached and lower as it moved away. The Doppler Effect is the change in frequency and wave length of a wave as it is perceived by an observer moving relative to the source of the waves.

This team of scientists that was observing Sputniks radio transmissions soon realized that since they knew…

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Posted on May 8, 2014, in Uncategorized. Bookmark the permalink. Leave a comment.

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