A Fast Wave-Based Hybrid Method for Interactive Acoustic Simulation in Large and Complex Environments

Award Information
Agency: Department of Defense
Branch: Army
Contract: W911NF-11-C-0243
Agency Tracking Number: A11A-006-0258
Amount: $99,952.00
Phase: Phase I
Program: STTR
Awards Year: 2011
Solicitation Year: 2011
Solicitation Topic Code: A11a-T006
Solicitation Number: 2011.A
Small Business Information
EE Boost Inc
618 Powers Ferry RD, Cary, NC, 27519-
DUNS: 967753331
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Tian Xiao
 Vice President
 (919) 439-4847
 xiao@eeboost.com
Business Contact
 Xin Pan
Title: President
Phone: (919) 439-4847
Email: pan@eeboost.com
Research Institution
 NC State University
 Matt Ronning
 2701 Sullivan Drive
Admin Services III; Box 7514
Raleigh, NC, 27695-7514
 (919) 515-2444
 Nonprofit college or university
Abstract
EE Boost Inc. proposes to develop a new, fast and accurate hybrid wave-based method for acoustic simulation in large and complex environments. The hybrid method combines two efficient methods: the pseudo-spectral time-domain (PSTD) method and the enlarged cell technique (ECT). The PSTD method is extremely fast and accurate in computing fields in large cuboids without internal boundaries and interfaces. The ECT is geometrically flexible and can efficiently and accurately model complex boundaries. By removing the staircase errors, it is much more efficient than the conventional finite-difference time-domain (FDTD) method. The integration of the two complementary methods makes the simulation in large and complex environments still extremely fast without sacrificing accuracy. We have extensive experience with the advanced computational algorithms and are in an excellent position to develop such a fast and accurate method to meet the challenging needs of modern applications. The proposed method has some other good features. It is mathematically consistent, and is well suited to interactive simulation and hard acceleration.

* information listed above is at the time of submission.

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