NDLI: Augmented Hammerstein model for six-port-based wireless receiver calibration

Content Provider	IET Digital Library
Author	Chagtmi, Nadia Boulejfen, Noureddine Ghannouchi, Fadhel M.
Abstract	An augmented Hammerstein model (AHM) is proposed for the first time to calibrate a six-port-based receiver (SPR) and to recover the in-phase I and the quadrature Q components of a modulated wideband RF signal. The proposed model is intended to provide a good compromise between complexity and accuracy. To verify the performance of the resulting calibration approach, an experimental validation has been performed with an SPR driven by wideband modulated signals with different bandwidths. An error vector magnitude between the transmitted and received signals of 2.17 and 1.33% has been reported for 64-QAM signals with 4 and 2 MHz bandwidths, respectively. The obtained measurement results have revealed the robustness and the superiority of the AHM-based single-step calibration technique compared with the two-step conventional procedure. Moreover, the AHM achieved the same performance as the published memory polynomial model while requiring ∼60% less coefficients leading to a less complexity calibration procedure with a lower number of calibration parameters and flops.
Starting Page	951
Ending Page	960
Page Count	10
ISSN	17518628
Volume Number	11
e-ISSN	17518636
Issue Number	Issue 6, Apr (2017)
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/iet-com/11/6
Alternate Webpage(s)	https://digital-library.theiet.org/content/journals/10.1049/iet-com.2016.0902
Journal	IET Communications
Publisher Date	2017-01-13
Access Restriction	Open
Rights Holder	© The Institution of Engineering and Technology
Subject Keyword	64-QAM Signals AHM Based Single-step Calibration Technique Algebra Augmented Hammerstein Model Bandwidth 2 MHz Bandwidth 4 MHz Error Vector Magnitude Memory Polynomial Model Modulated Wideband RF Signal Modulation And Coding Method Polynomial Quadrature Amplitude Modulation Radio Link And Equipment Radio Receiver Six-port-based Wireless Receiver Calibration SPR
Content Type	Text
Resource Type	Article
Subject	Electrical and Electronic Engineering Computer Science Applications

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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
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