Accession Number : ADA258969


Title :   Locating an Imaging Radar in Canada for Identifying Spaceborne Objects


Descriptive Note : Master's thesis


Corporate Author : AIR FORCE INST OF TECH WRIGHT-PATTERSON AFB OH SCHOOL OF ENGINEERING


Personal Author(s) : Schick, William G


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/a258969.pdf


Report Date : Dec 1992


Pagination or Media Count : 241


Abstract : This research presents a study of the maximal coverage p-median facility location problem as applied to the location of an imaging radar in Canada for imaging spaceborne objects. The classical mathematical formulation of the maximal coverage p-median problem is converted into network-flow with side constraint formulations that are developed using a scaled down version of the imaging radar location problem. Two types of network-flow with side constraint formulations are developed: a network using side constraints that simulates the gains in a generalized network; and a network resembling a multi-commodity flow problem that uses side constraints to force flow along identical arcs. These small formulations are expanded to encompass a case study using 12 candidate radar sites, and 48 satellites divided into three states. SAS/OR PROC NETFLOW was used to solve the network-flow with side constraint formulations. The case study show that potential for both formulations, although the simulated gains formulation encountered singular matrix computational difficulties as a result of the very organized nature of its side constraint matrix. The multi-commodity flow formulation, when combined with equi-distribution of flow constraints, provided solutions for various values of p, the number of facilities to be selected.


Descriptors :   *OPTICAL DETECTION , *SPACE SURVEILLANCE , *RADAR IMAGES , *SATELLITE TRACKING SYSTEMS , *TARGET RECOGNITION , ORBITS , RECONNAISSANCE SATELLITES , CAMERAS , RADAR TRACKING , ARTIFICIAL SATELLITES , THESES


Subject Categories : Optical Detection and Detectors
      Active & Passive Radar Detection & Equipment
      Unmanned Spacecraft
      Spacecraft Trajectories and Reentry


Distribution Statement : APPROVED FOR PUBLIC RELEASE