Gold-Methods in Direction Finding

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Smith-Rose and Hopkins state that direction-finding of ultra-short waves was attempted from the times of Hertz (1880’s) itself. Later, various systems for direction finding have been attempted using rotatable beams (mechanical)leading to the development on a commercial scale of the course-indicating beacons and landing-beam systems now in use for the guidance of aircraft. As a fall out of advances in digital technology and Digital Signal Processing (DSP)electronic beam-steering replaced mechanical systems. The problems of direction-finding at high frequencies were stated by Ross. In this presentation, state of the art techniques developed by speaker will be discussed.

6:00PM: Networking and Buffet Dinner
6:30PM-7:30 PM: Talk/Presentation


Free refreshment/dinner will be served at 6:00 PM.

All are welcome. You don't have to be IEEE member to attend the talk.



  Date and Time

  Location

  Hosts

  Registration



  • Add_To_Calendar_icon Add Event to Calendar
  • 161 Warren Street
  • Newark, New Jersey
  • United States Newark
  • Building: ECE Building
  • Room Number: 202
  • Click here for Map

  • Contact Event Host
  • Dr.-Ing. Ajay Kumar Poddar, Phone: (201)560-3806 (Email: akpoddar@ieee.org) Prof. Edip Niver- Phone: (973)596-3542 (Email:edip.niver@njit.edu)
  • Co-sponsored by MTT/AP, ED/CAS
  • Starts 22 August 2014 02:00 PM UTC
  • Ends 25 September 2014 06:00 PM UTC
  • No Admission Charge


  Speakers

Dr. Kaluri V. Ranga Rao Dr. Kaluri V. Ranga Rao of JNTU at Hyderabad India

Topic:

Gold-Methods in Direction Finding

A new way of accurately determining peaks of the MUSIC spectrum, here considered from the point of view of estimating the directions of arrival (DOAs) of narrowband signals. It can be used, with any smart antenna geometry and for any purpose where MUSIC is applicable. The MUSIC algorithm for DOA estimation evaluates the MUSIC spectrum for various angles and chooses the maxima or peaks as the angles of arrival. The values obtained depend on the interval at which the spectrum is evaluated. The coarser the interval, the less accurate are the results in case of MUSIC. To improve accuracy and not depend on the interval, Root-MUSIC, which involves finding the roots of a polynomial, is available. However, Root-MUSIC is applicable, in its original form, only to uniform linear arrays (ULA). The gold-MUSIC algorithm proposed in this paper is a two-stage process. The first stage evaluates the objective function at coarse intervals and determines peaks followed by an iterative approach based on gold-section univariate(GSU) minimization to find accurate values of the peaks. A method, based on a partitioning algorithm for estimating the number of emitters is also described.

Biography: Dr. Kaluri V. Ranga Rao:
Earned his BSEE from Andhra University in 1974 and MSCS from the Indian Institute of Science, Bangalore in 1977. He received an MSSE in 1991 from the US Naval Post Graduate School and a Ph.D. from the Indian Institute of Technology (Madras) in 1994. He is a
senior member of the IEEE. He is the author of a text book on DSP applications, published by John Wiley(UK). Currently he is a Professor Emeritus at the Dept of ECE, JNTU-H, Hyderabad, and Industrial Consultant for many companies, India.
Before that, he was the Chief Scientist of Tanla Solutions, VP Engineering at Sarayu Softech, Chief Engineer at General Electric (Hyderabad), Vice President Satyam Computer Services, CEO of GMR Vasavi Infotech and Project Director,Senior Scientist in
DRDO. Principal Investigator for DRDO project. He has been a Visiting Professor at IITD, Visiting Scholar at Oklahoma State University, Visiting Professor at IIIT-H, and Visiting Scholar at CMU.
Prof Rangarao published 25 IEEE transaction and conference papers,and holds several US and Indian patents.
Best paper award at RADAR conference-2011 Chengdu China,Best paper award at Digital Avionics Systems Conference (DASC) 2013 at Syracuse, US

Email:

Address:Columbus, Ohio, United States

Dr. Kaluri V. Ranga Rao of JNTU at Hyderabad India

Topic:

Gold-Methods in Direction Finding

Biography:

Email:

Address:Columbus, Ohio, United States


Dr. Kaluri V. Ranga Rao of JNTU at Hyderabad India

Topic:

Gold-Methods in Direction Finding

Biography:

Email:

Address:Columbus, Ohio, United States





Agenda

6:00PM: Networking and Buffet Dinner

6:30PM-7:30 PM: Talk/Presentation

Free refreshment/dinner will be served at 6:00 PM.

All are welcome. You don't have to be IEEE member to attend the talk.