New Approach to Wave Oriented Radio Propagation Modeling Based on Extended FDTD Methods

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: DAAH0102CR054
Agency Tracking Number: 01SB2-0022
Amount: $98,693.00
Phase: Phase I
Program: SBIR
Awards Year: 2001
Solicitation Year: N/A
Solicitation Topic Code: N/A
Solicitation Number: N/A
Small Business Information
315 S. Allen St., Suite 222, State College, PA, 16801
DUNS: 945483733
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Joseph Schuster
 Electromagnetic Analyist
 (814) 861-1299
 jws@remcom.com
Business Contact
 Raymond Luebbers
Title: President
Phone: (814) 861-1299
Email: rjl@remcom.com
Research Institution
N/A
Abstract
Predicting the signal level and coverage area of radio frequency communication channels between base stations, vehicles and warfighters is a challenging problem. The channel may involve radio frequency interactions with hills, foliage, and buildings.The paths may involve long distances over hilly terrain or shorter distances involving interaction with urban building features. Some propagation paths may simultaneously involve hills, foliage, and urban areas. Existing methods for making physics-basedpredictions of radio propagation are limited to single classes of interactions, such as urban, terrain, or indoor. And even though physics-based, require approximations and assumptions that limit accuracy. In this effort it is proposed to extend theFinite Difference Time Domain (FDTD) method to allow full wave calculation of long distance radio propagation over irregular terrain. Remcom has already developed a commercial quality radio propagation prediction model based on high frequency ray methods.Future plans include extending the capabilities of this software to include more accurate propagation prediction over irregular terrain including area coverage, and to mixed paths. The proposed effort should result in the most accurate irregular-terrainpropagation model available. At present there is no commercial software network planning tool that will accurately predict radio propagation over irregular terrain, or over paths that simultaneously involve irregular terrain and urban features, or urbanfeatures and indoor locations, or any combination of these. The market for such a software product is large, including both commercial and DoD applications.

* Information listed above is at the time of submission. *

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