Costas Arrays: What, Why, How and When 🗓

–(IEEE Pennsylvania)- Costas Arrays, Frequency-Agile, Radar Signals …



Date:  January 15 2019.
Time: 06:00 PM to 09:00 PM (EDT)
Speaker: Dr. James Beard.

3549 Chestnut St.
Philadelphia, Pennsylvania
United States 19104.

Cost: Free
RSVP: Required.
Event Details & Registration: (URL)

Costas arrays are special permutation matrices that provide minimum crosstalk between two signals that are mismatched in either timing or frequency.  Their original purpose and still their most important use is as a frequency hop scheme for communications and radar signals.  Costas arrays can be searched over orders up to about 20, generated through number-theoretic equations, or obtained through databases.  A database on IEEE DataPort provides all known Costas arrays through order 1030.  We will look at a simple frequency-agile waveform that uses a Costas array to select the frequencies of the pulses.

Dr. James K. Beard, (M’64 LM’04, LSM’05), ORCID ID* 0000-0003-4430-8704 was born in Austin, TX in 1939. He received a BS degree from the University of Texas at Austin in 1962, an MS from the University of Pittsburgh in 1963, and the Ph. D. from the University of Texas at Austin in 1968, all in electrical engineering.  He is a member of Phi Eta Sigma, Eta Kappa Nu, Tau Beta Pi, and Sigma Xi.  He studied for his Ph. D. under a GSRF Fellowship (matched U. Texas Austin and Ford Foundation funding, administered by U. Texas Austin) and completed his Ph.D. under an NSF Fellowship.
Between 1959 and 2004, he worked in Government laboratories, industry, and as an individual consultant.  Employers include precursors or current divisions of Northrop Grumman, Raytheon, and Lockheed Martin, most recently Lockheed Martin in Moorestown, NJ.  Dr. Beard is the inventor of record for US Patent No. 6,870,501 awarded March 2005, “Digital Radio Frequency Tag” assigned to Raytheon Company.  He is currently an individual consultant based in Medford, NJ near Philadelphia.  He is the author of a number of papers and a book, “The FFT in the 21st Century” (ISBN 978-1402076756, Springer-Verlag, 2003).
Current research interests include system engineering solutions to homeland defense issues, estimation and decision theory, radar and communications concept and waveform design, and digital radar concepts.  He was Publications Chairman for FUSION2005.  Dr. Beard is also a member of the AIAA.