Accession Number : ADA594829


Title :   Managing Space Situational Awareness Using the Space Surveillance Network


Descriptive Note : Final rept. 29 Feb 2012-30 Aug 2013


Corporate Author : PENNSYLVANIA STATE UNIV STATE COLLEGE DEPT OF AEROSPACE ENGINEERING


Personal Author(s) : Spencer, David B ; Williams, Patrick S


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a594829.pdf


Report Date : 14 Nov 2013


Pagination or Media Count : 168


Abstract : The large number of space objects compared to the limited sensors available to track them results in measurements occurring infrequently. It is necessary to create some form of utility metric to determine which sensors should observe which objects at a particular instant of time. This report examines the use of utility metrics from two forms of expected information gain for each object sensor pair as well as the approximated stability of the estimation errors in order to work towards a tasking strategy. The investigation of this coupling demonstrates that the use of more accurate filters leads to better overall estimates, not only due to the advantages within the estimation methods, but also from the improvement in tasking decisions due to selection of these estimators.


Descriptors :   *DETECTORS , *SPACE SURVEILLANCE , ACCURACY , COUPLING(INTERACTION) , ERRORS , ESTIMATES , KALMAN FILTERING , METHODOLOGY , NETWORKS , ORBITS , SELECTION , SITUATIONAL AWARENESS , STABILITY , STRATEGY


Subject Categories : Military Intelligence
      Astronautics


Distribution Statement : APPROVED FOR PUBLIC RELEASE