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Unique Model of Plume RF Signatures for Missile Detection, Identification,…

Award Information

Department of Defense
Air Force
Award ID:
Program Year/Program:
2004 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
Enig Associates, Inc.
4600 East West Hwy Suite 620 Bethesda, MD -
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 2
Fiscal Year: 2004
Title: Unique Model of Plume RF Signatures for Missile Detection, Identification, Characterization, and Tracking
Agency / Branch: DOD / USAF
Contract: F33615-03-C-1476
Award Amount: $750,000.00


To provide the MDA with new space-borne intelligence-gathering passive-sensing techniques for the detection, identification, characterization, and tracking (DICT) of hostile ballistic and cruise missiles and other advanced systems, we are expanding our unique physical models that allow for the interpretation of radio frequency (RF) signatures of missile plumes in a way that is directly traceable to the radiating source. The signature is the result of both thermal and nonthermal radiation. The latter is defined by electric charge separation and acceleration. The usual thermal radiation theory must be expanded to include electric charge separation in hot, ionized combustion gases in order to calculate accurately the electrical conductivity within the plume and, therefore the absorption/transmission of the radiation from the plume. The output of any appropriate quasi-steady plume flow field computer code becomes the input to our post-processor 3-dimensional radiation code RFPLUME. Previously, we applied the theoretical model of nonthermal RF radiation to that from axisymmetric quasi-steady plumes in the upper atmosphere and also to that from an unsteady plume impacting the launch pad. This work will now be extended and generalized to 3D flows resulting from multiple rocket nozzles and/or oblique interactions with the launch pad. More realistic missile configurations, more ionized species, and more sophisticate equations of state of the combustion products will be considered.

Principal Investigator:

Julius W. Enig

Business Contact:

Julius W. Enig
Small Business Information at Submission:

12501 Prosperity Drive, Suite 340 Silver Spring, MD 20904

EIN/Tax ID: 521413415
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No