A new 94-GHz six-port collision-avoidance radar sensor

Moldovan, E.; Tatu, Serioja Ovidiu; Gaman, T.; Wu, Ke; Bosisio, R.G.

doi:10.1109/tmtt.2004.823533

Cited by 92 publications

(40 citation statements)

References 7 publications

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“…In the current work, a calibration technique based on the SVR model is introduced into the six-port position sensor without necessarily considering the physical properties of the modules and the components. In [9], the target was situated at around 700 cm, and a mean of the measured distance to the target was 729 cm. A mean error of approximately 4% was obtained.…”

Section: Resultsmentioning

confidence: 99%

“…The six-port network was proven to be a suitable architecture for position sensors according to phase difference measurements [9,17], which have a close relationship with the relative amplitudes of the I/Q signals. A six-port network is used to determine the distance from the antennas to the target.…”

Section: Operating Principlementioning

confidence: 99%

“…The relationship between the distance, the frequency difference, and the phase difference can be expressed as follows [9]:…”

Section: Operating Principlementioning

confidence: 99%

“…The researchers then found that the six-port technique could be used for communication transceivers [2][3][4], direction finding receivers [5] and ranging receivers [6][7][8][9], etc.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies on the position sensor using the six-port technique have been reported [6][7][8][9]. In these papers, the researchers mainly used the frequency modulation continuous wave (FMCW) [6][7][8] or two adequately spaced continuous wave (CW) frequencies [9] to measure the position. The advantages of a position sensor based on the six-port technique are as follows: operation in millimeter wave frequencies, no mixer, lowpower consumption, implementation in MMIC (low-cost and compact size), etc.…”

Section: Introductionmentioning

confidence: 99%

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Calibration of a Six-Port Position Sensor via Support Vector Regression

Peng¹,

Yang²,

Yang³

2012

PIER C

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Abstract-In this paper, a calibration technique for the position sensor via support vector regression (SVR) is proposed. The position sensor adopts a zero-intermediate frequency architecture based on a six-port network, which is used for directly measuring the phase differences and indirectly reflecting the position. The SVR, which implements the structural risk minimization (SRM) principle, provides a good generalization ability from size-limited data sets. The results indicate that the SVR model can achieve a great predictive ability in positioning, with an accuracy of 2.41 mm over a distance range of 274.5 mm.

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Section: Resultsmentioning

confidence: 99%

Section: Operating Principlementioning

confidence: 99%

“…The relationship between the distance, the frequency difference, and the phase difference can be expressed as follows [9]:…”

Section: Operating Principlementioning

confidence: 99%

“…The researchers then found that the six-port technique could be used for communication transceivers [2][3][4], direction finding receivers [5] and ranging receivers [6][7][8][9], etc.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Calibration of a Six-Port Position Sensor via Support Vector Regression

Peng¹,

Yang²,

Yang³

2012

PIER C

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Assessment of an alternative six‐port circuit for broadband complex voltage‐ratio measurements

Casares-Miranda

Otero

Márquez-Segura

et al. 2005

Micro & Optical Tech Letters

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The assessment of an alternative six‐port circuit in terms of frequency behavior when used to measure complex voltage ratio is presented. A numerical comparison to commonly used and well‐known six‐port circuits is carried out. The presented results can help us to choose between different six‐port configurations depending on the application, and show that the proposed circuit is the most suitable in general. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 46: 24–27, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20890

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Design of a new phased-array driver using a six-port phase discriminator

Moldovan

Tatu²,

Denidni³

et al. 2005

Microw. Opt. Technol. Lett.

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posed. It has been demonstrated that these wide bands and small dimensions can be achieved due to the combination of grounded stubs and DS-CSRRs. A fabricated prototype band-pass filter with 30% fractional bandwidth centered at f o ϭ 3.8 GHz has demonstrated high performance, with measured in-band losses below 1 dB, out-of-band rejection above 40 dB, and small dimensions. This work may open the door to new design strategies for the synthesis of wideband planar filters. ACKNOWLEDGMENTSThis work was supported by MEC by project contract nos. TEC2004-04249-C02-01, TEC2004-04249-C02-02, and PROFIT 330200-2004-113. The authors also thank the European Community (Eureka Program) for project no. 2895-TELEMAC. The authors are in debt to CONATEL s.1. for supporting this work, and to Ricard Pineda (Omicron Circuits s.1.) for the fabrication of the prototypes. DESIGN OF A NEW PHASED-ARRAY DRIVER USING A SIX-PORT PHASE DISCRIMINATOR

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A new 94-GHz six-port collision-avoidance radar sensor

Cited by 92 publications

References 7 publications

Calibration of a Six-Port Position Sensor via Support Vector Regression

Calibration of a Six-Port Position Sensor via Support Vector Regression

Assessment of an alternative six‐port circuit for broadband complex voltage‐ratio measurements

Design of a new phased-array driver using a six-port phase discriminator

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