Accession Number : ADA136838


Title :   A Comparison of Two Extended Kalman Filter Algorithms for Air-to-Air Passive Ranging


Descriptive Note : Master's thesis


Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA


Personal Author(s) : Ewing, Ward H


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a136838.pdf


Report Date : Sep 1983


Pagination or Media Count : 69


Abstract : Two Extended Kalman Filter algorithms for air-to-air passive ranging are proposed, and examined by computer simulation. One algorithm uses only bearing observations while the other uses both bearing and elevation angles. Both are tested using a flat-Earth model and also using a spherical-Earth model where the benefit of a simple correction for the curvature-of-the-Earth effect on elevation angle is examined. The effects of varied angle measurement precision and of varied range estimate accuracy are investigated. Both filters are found to perform acceptably under most conditions, with the bearing- elevation algorithm generally providing superior results.


Descriptors :   *ALGORITHMS , *KALMAN FILTERING , *PASSIVE SYSTEMS , *RANGE FINDING , AERIAL TARGETS , AIR TO AIR , ANGLES , COMPUTERIZED SIMULATION , CORRECTIONS , ELEVATION , MEASUREMENT , OBSERVATION , RANGE(DISTANCE) , THESES


Subject Categories : Theoretical Mathematics


Distribution Statement : APPROVED FOR PUBLIC RELEASE