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Geolocation of targets using overhead platforms had been called "as much Art as Science" by workstation operators. This is due to the many variables which, if not consciously and correctly taken into account, must default to operator "best guesses."
Failure to deal with the inaccuracies found in these variables (or ignoring some of the variables completely) can lead to a reluctant realization that one's geolocation system is flawed or, worse, a false sense of security and a concomitant dependency on target position estimations that are considered to be accurate when they are not.
S&ST was asked to take a major role over an extended period in producing algorithms and software for a defense contractor client that would enhance the geolocation by a more precise determination of the variables. A super-accurate interpolation method was used to determine the precise location of the (Time/Frequency) Cross Ambiguity Function or CAF. These sub-pixel methods produced a significant improvement in geolocation. Some of the specific items addressed included: |
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