NDLI: Collaborative randomized beamforming for phased array radio interferometers

Content Provider	IEEE Xplore Digital Library
Author	Ocal, O. Hurley, P. Cherubini, G. Kazemi, S.
Copyright Year	2015
Description	Author affiliation: IBM Zurich Res. Lab., Rüschlikon, Switzerland (Ocal, O.; Hurley, P.; Cherubini, G.; Kazemi, S.)
Abstract	The Square Kilometre Array (SKA) will form the largest radio telescope ever built and such a huge instrument in the desert poses enormous engineering and logistic challenges. Algorithmic and architectural breakthroughs are needed. Data is collected and processed in groups of antennas before transport for central processing. This processing includes beamforming, primarily so as to reduce the amount of data sent. The principal existing technique points to a region of interest independently of the sky model and how the other stations beam-form. We propose a new collaborative beamforming algorithm in order to maximize information captured at the stations (thus reducing the amount of data transported). The method increases the diversity in measurements through randomized beamforming. We demonstrate through numerical simulation the effectiveness of the method. In particular, we show that randomized beamforming can achieve the same image quality while producing 40% less data when compared to the prevailing method matched beamforming.
Starting Page	5654
Ending Page	5658
File Size	712600
Page Count	5
File Format	PDF
ISBN	9781467369978
DOI	10.1109/ICASSP.2015.7179054
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2015-04-19
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Array signal processing Antennas Noise Arrays Correlation Shape Radio astronomy sparse signal processing Beamforming array signal processing interferometry radio astronomy
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Studies of subarray adaptive digital beamforming for sparse phased array radar

Fast stochastic beamforming for mobile phased array antennas

Collaborative randomized beamforming for phased array radio interferometers. arXiv preprint arXiv:1411.4002 (2014)

Bandwidth limits of beamforming networks for low-noise focal-plane arrays

Beamformer design for radio astronomical phased array feeds

Oblique projection beamforming for RFI mitigation in radio astronomy

Bandwidth limits of beamforming networks for focal-plane arrays

Compressive sensing for sparse arrays

Beamforming in the presence of correlated arrivals using structured correlation matrix

Collaborative randomized beamforming for phased array radio interferometers

Similar Documents

Studies of subarray adaptive digital beamforming for sparse phased array radar

Fast stochastic beamforming for mobile phased array antennas

Collaborative randomized beamforming for phased array radio interferometers. arXiv preprint arXiv:1411.4002 (2014)

Bandwidth limits of beamforming networks for low-noise focal-plane arrays

Beamformer design for radio astronomical phased array feeds

Oblique projection beamforming for RFI mitigation in radio astronomy

Bandwidth limits of beamforming networks for focal-plane arrays

Compressive sensing for sparse arrays

Beamforming in the presence of correlated arrivals using structured correlation matrix

Collaborative randomized beamforming for phased array radio interferometers