Automated Characterization of Communications, Electronic Attack, Radar, and Navigation Systems
Navy SBIR FY2008.2

Sol No.: Navy SBIR FY2008.2
Topic No.: N08-123
Topic Title: Automated Characterization of Communications, Electronic Attack, Radar, and Navigation Systems
Proposal No.: N082-123-0009
Firm: Delcross Technologies, LLC
2009 Fox Drive
Unit K
Champaign, Illinois 61820
Contact: Matthew Miller
Phone: (217) 895-2067
Web Site:
Abstract: One of the most important problems encountered in an electromagnetic environment is that of providing compatibility between radiating and receiving RF equipment within the environment. This problem is a type of electromagnetic interference and the goal of RF system designers and analysts is to achieve electromagnetic compatibility where no interference problems exist between the various RF systems. As an increasing number of RF systems are installed on Navy aircraft, the cosite interference problem becomes more and more challenging. To further complicate matters, modern RF systems are often capable of operating over many channels and thus the operating frequency range of a single system can be very large. Also, a modern RF system may be capable of supporting multiple modulation schemes and modalities. These factors represent a major challenge to analysts who wish to simulate cosite interference problems since RF system models are not readily available. Our team proposes to develop an automated measurement system (AMS) that will aid in the development of both low fidelity (spectrum) and high fidelity (behavioral) models for use with cosite analysis software. The AMS will automatically and non-invasively extract performance parameters and characterize subsystem components of transmitters and receivers while minimizing human interaction.
Benefits: Throughout the commercial and military industries, there is a great need for accurately modeling interference between transmitters and receivers. Tools have previously been developed for analyzing interference problems but they are limited in their usefulness because of a lack of radio models and/or measured data. Manufacturers typically focus on the desired performance of the RF system they are creating and are generally only concerned with out-of-band performance to the extent that they are meeting FCC and/or military requirements. Manufactures usually have detailed circuit models for their systems and measured data as well, but they generally do not share their circuit models with outside entities. Further, the measured data that they are willing to provide is usually in-band data and in the rare instances when out-of-band measured data is available, it is limited in frequency and dynamic range. As a result, analysts wishing to perform EMI analysis involving RF systems from multiple vendors are typically at a loss for input data for their analysis codes. For this reason, we view the proposed effort as having very significant commercial market potential and providing multiple sources of revenue. First of all, the automated measurement system (AMS) at the end of the Phase II could be sold as a package to companies that wish to characterize third party RF systems for EMI analysis. Delcross could also use the same system to populate a database of RF system models that could then be sold to companies that need the models but do not wish to purchase the AMS and invest in the time to train individuals to use it. Along the same lines, Delcross could characterize RF systems on an as needed basis for other companies. These would be systems for which the company required a model but did not want the model to be part of the larger database that Delcross would sell. We anticipate this customer base will be composed of military organizations, defense contractors, and commercial companies.