Augmented Hammerstein model for six‐port‐based wireless receiver calibration

Chagtmi, Nadia; Boulejfen, Noureddine; Ghannouchi, Fadhel M.

doi:10.1049/iet-com.2016.0902

Cited by 5 publications

(2 citation statements)

References 13 publications

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“…Like in the single band receiver, the static nonlinear block is responsible for characterizing the static nonlinearity of the dual‐band six‐port based receiver and the dynamic block is dedicated for modeling the diodes’ memory effects.…”

Section: Calibration Algorithmsmentioning

confidence: 99%

Augmented Hammerstein model for the calibration of six-port based dual band wireless receivers

Chagtmi

Boulejfen

Zhang

et al. 2018

Int J RF Microw Comput Aided Eng

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Two architectures of concurrent dual‐band six‐port‐based receiver (SPR), which are modeled and calibrated using the augmented Hammerstein model (AHM) are proposed for the first time in this article. The receivers are based on six‐port junctions with one or two local oscillators (LO). The proposed single step calibration algorithms achieve the recovery of the two in‐phase (I1 and I2) and quadrature (Q1 and Q2) components of an RF signal with two frequency components (RF1 and RF2). Experimental validations have been performed to verify the performance of the proposed concurrent dual‐band receivers and to test the efficiency of the AHM based calibration algorithms. As a performance metric, the Error Vector Magnitude (EVM) has been measured to compare the transmitted and recovered baseband signals and to evaluate the performance and efficiency of the proposed calibration algorithms for the two receiver topologies. The IQ data has been recovered with EVMs no higher than 2% for the two LOs based receiver excited with a QAM modulated dual‐band RF signal. The single LO based receiver has been tested with a dual‐band LTE signal and the recovered IQ data exhibited EVMs no higher than 4%.

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Section: Calibration Algorithmsmentioning

confidence: 99%

Augmented Hammerstein model for the calibration of six-port based dual band wireless receivers

Chagtmi

Boulejfen

Zhang

et al. 2018

Int J RF Microw Comput Aided Eng

Self Cite

View full text Add to dashboard Cite

show abstract

“…It is common to use diodes, to perform nonlinear mixing, and a low pass filter to extract the desired baseband parts in outputs of the six-port correlator, as depicted in Figure 1. All formulas which are published for analysing the six-port receiver's performance have modelled diode behaviour as an squared law model (Ghannouchi and Mohammadi, 2009; Askari and Kamarei, 2017; Djoumessi et al , 2009; Bao et al , 2012; Djoumessi and Wu, 2010; Huyart and Khy, 2012; Koelpin et al , 2011; Osth et al , 2010; Tatu et al , 2005; Winter et al , 2007; Zhang et al , 2017; Chagtmi et al , 2017; Song et al , 2018; Neveux et al , 2004; Moscoso-Martir et al , 2011; Mohajer et al , 2007). In this paper, an analytical approach for diode power detector is presented and its influence on six-port receiver performance is studied.…”

Section: Introductionmentioning

confidence: 99%

Improved analytical approach for studying the effect of diode power detector modelling on six-port communication receiver performance

Sahlabadi

Abdipour

Mohammadi

2019

COMPEL

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Purpose The purpose of this paper is to study the effect of diode power detector modelling on six-port communication receiver performance. Design/methodology/approach Based on proposed and conventional squared diode model, six-port receiver’s demodulation and its error vector magnitude (EVM) performance due to hardware impairments are studied. Through considering both the models, the accuracy of proposed power detector model is compared to the squared model, and then both results are validated with envelope simulation (ENV) in advanced design system (ADS). Findings Comparing the numerical results with envelope simulation results proved that the proposed model is much more accurate than the conventional squared model for a wide range of input power levels. Originality/value Studying the receiver’s performance numerically, by considering the new proposed analytical approach for diode power detectors which is more accurate than the conventional squared model.

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Parameter estimation for Hammerstein control autoregressive systems using differential evolution

Mehmood

Aslam

Chaudhary

et al. 2018

SIViP

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Augmented Hammerstein model for six‐port‐based wireless receiver calibration

Cited by 5 publications

References 13 publications

Augmented Hammerstein model for the calibration of six-port based dual band wireless receivers

Augmented Hammerstein model for the calibration of six-port based dual band wireless receivers

Improved analytical approach for studying the effect of diode power detector modelling on six-port communication receiver performance

Parameter estimation for Hammerstein control autoregressive systems using differential evolution

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