Multisource/multireceiver Tactical Decision Aid

Period of Performance: 04/01/1999 - 04/01/2001


Phase 2 SBIR

Recipient Firm

Daniel H. Wagner, Assoc., Inc.
559 West Uwchlan Avenue Array
Exton, PA 19341
Principal Investigator

Research Topics


The problem is to design and build a TDA to address undersea warfare performed by warships using multistatic active sensors. The TDA must address non-homogeneous environments with range dependent transmission loss and non-isotropic background noise. It must represent all sensors that would be employed in such a setting. It must process this information to produce optimal tactics, and in timely fashion. It must do all that with an operator interface that is intuitive, easy to train, and portable to whatever computer platforms may be used in fleet and laboratory settings in the next several years. We must make effective use of existing relevant data bases and common modules. The methodology should allow for quick response to in situ data that differs from the historical database. Existing methods of analyzing USW tactics are not adequate. The concept of sensor detection range is problematic when the locus of places where there would be positive signal excess is patchy with irregularly shaped gaps. The situation for a bistatic pair is even more complex. Since detection range cannot be defined, there is no sensible concept of a sweep width or sweep rate. Mere examination of monostatic coverages, while illuminating, does not integrate these coverages and suggest a track to be employed by the participants. Thus we must have recourse to numerically intensive methods, which recommend tracks and ping schedules for the participating units. Fortunately, with modern high-speed processors and the amount of memory easily affordable, this is practical.