..Validation Testing: Why validation testing? It is to
determine if the system is suitable for its intended purpose of
monitoring low flying aircraft. Because the system is being tested
out in the field against a non-cooperative moving targets, a class 1
infrared laser range-finder was used to verify the
Low-Flying-Aircraft-Monitoring system test results. The Laser
Atlantic's Advantage range finder model was used for these test. It
is an industry standard for doing surveying measurements. Its
specifications are +/- 6 inches at any detectable range and +/- .2
degrees. Test Series 1: Slant Range, random measurement on static structures. 0.200 degrees match between range finder and camcorder system. Test Series 2: Slant Range, base length= 1291, 1 mile from PAPI glide slope 277 AGL, max altitude mismatch 2 feet, 0.176 degree match between range finder and camcorder system. Test Series 3: Horizontal/Vertical Range, base length = 1291, 1 mile from PAPI, glide slope 277 AGL, max altitude mismatch 3 feet, 0.266 degree match between range finder and camcorder system. Test Series 4: Horizontal/Vertical Range, base length =
3350, 2.5 mile from PAPI, glide slope 692 AGL, max altitude
mismatch 32 feet, 1.090 degree match between range finder
and camcorder system. (The larger mismatch of 1.090 degrees was caused
by taking the range finders reading too early. It was taken when
the aircraft was at a higher altitude and before the aircraft
passed between the two camcorders.) Test Series 5: Horizontal/Vertical Range, base length =
3350, 2.5 mile from PAPI, glide slope 692 AGL, max altitude
mismatch 8.4 feet, 0.287 degree match between range finder
and camcorder system |