NDLI: Effects of finite weight resolution and calibration errors on the performance of adaptive array antennas

Content Provider	IEEE Xplore Digital Library
Author	Wennstrom, M. Oberg, T. Rydberg, A.
Copyright Year	1965
Abstract	Adaptive antennas are now used to increase the spectral efficiency in mobile telecommunication systems. A model of the received carrier-to-interference plus noise ratio (CINR) in the adaptive antenna beamformer output is derived, assuming that the weighting units are implemented in hardware, The finite resolution of weights and calibration is shown to reduce the CINR. When hardware weights are used, the phase or amplitude step size in the weights can be so large that it affects the maximum achievable CINR. It is shown how these errors makes the interfering signals "leak" through the beamformer and we show how the output CINR is dependent on power of the input signals. The derived model is extended to include the limited dynamic range of the receivers, by using a simulation model. The theoretical and simulated results are compared with measurements on an adaptive array antenna testbed receiver, designed for the GSM-1800 system. The theoretical model was used to find the performance limiting part in the testbed as the 1 dB resolution in the weight magnitude. Furthermore, the derived models are used in illustrative examples and can be used for system designers to balance the phase and magnitude resolution and the calibration requirements of future adaptive array antennas.
Starting Page	549
Ending Page	562
Page Count	14
File Size	718277
File Format	PDF
ISSN	00189251
Volume Number	37
Issue Number	2
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-04-01
Publisher Place	U.S.A.
Access Restriction	One Nation One Subscription (ONOS)
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Calibration Adaptive arrays Power system modeling Receiving antennas Hardware Antenna arrays Phased arrays Mobile antennas Noise reduction Signal to noise ratio
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Aerospace Engineering

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

MoM simulation of signal-to-noise patterns in infinite and finite receiving antenna arrays

Performance analysis of antenna array in terms of SNR/SIR and number of antenna elements

Adaptive array antenna for mobile communication

The range increase of adaptive versus phased arrays in mobile radio systems

Dielectric embedded ESPAR (DE-ESPAR) antenna array for wireless communications

Fast stochastic beamforming for mobile phased array antennas

Angular superresolution for phased antenna array by phase weighting

Adaptive arrays

A Superlimiting Phased-Array Receiving System in a Two-Source Environment

Effects of finite weight resolution and calibration errors on the performance of adaptive array antennas

Similar Documents

MoM simulation of signal-to-noise patterns in infinite and finite receiving antenna arrays

Performance analysis of antenna array in terms of SNR/SIR and number of antenna elements

Adaptive array antenna for mobile communication

The range increase of adaptive versus phased arrays in mobile radio systems

Dielectric embedded ESPAR (DE-ESPAR) antenna array for wireless communications

Fast stochastic beamforming for mobile phased array antennas

Angular superresolution for phased antenna array by phase weighting

Adaptive arrays

A Superlimiting Phased-Array Receiving System in a Two-Source Environment

Effects of finite weight resolution and calibration errors on the performance of adaptive array antennas