Introduction into an UAV-based near-field system for in-situ and large-scale antenna measurements (Invited paper)

Fritzel, Torsten; Straus, Rudiger; Steiner, H.-J.; Eisner, Christoph J.; Eibert, Thomas F.

doi:10.1109/cama.2016.7815762

Cited by 37 publications

(13 citation statements)

References 4 publications

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“…The choice was due to the fact that the probability of disrupting the work of the platform in case it flew in excessive proximity to the mast, was too high (likely to provoke the disruption of the signal controlling the platform and, in the worst case, the disintegration of the platform upon the fall from a great height). In order to eliminate the disruptions to the platform, one may replace the radio control with the laser control, whereas the disruptions in the transmission of data from the sensor might be eliminated by way of transmitting the data through the optical fiber [5]. In many countries and army, wired drones are used [17,20].…”

Section: Fig 1 Mobile Platform With Sensor and Batterymentioning

confidence: 99%

The Concept of a Flying Electromagnetic Field Measuring Platform

Szymaniec

Szymocha

Miszuda

2019

IAPGOS

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Nowadays, humans are surrounded by more and more devices that artificially generate an electromagnetic field. According to law, supervision of the level of the electromagnetic field requires specific measurements. Measurement performed by traditional methods have several limitations, which come from the infrastructure and time taken to perform the measurement. New methods of measurement are being developed in order to execute the research relatively quickly and repeatedly without any limitations. One of the methods is to use a flying mobile measurement platform.

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Section: Fig 1 Mobile Platform With Sensor and Batterymentioning

confidence: 99%

The Concept of a Flying Electromagnetic Field Measuring Platform

Szymaniec

Szymocha

Miszuda

2019

IAPGOS

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“…Thanks to the development of both Global Navigation Satellite Systems (GNSS) and RTK technology, multiconstellation and dual-band RTK systems are capable of providing positioning and geo-referring accuracy up to 5 mm, enabling measurements up to 30 GHz (to ensure that georeferring uncertainties are not greater than half wavelength). There are other possible solutions for mm-level accuracy data geo-referring such as laser trackers, as already proposed in [13] for crane-assisted antenna measurement at mm-wave frequency bands. For this proof-of-concept, UASAM makes use of a lowcost RTK system providing 1-2 cm geo-referring and positioning uncertainty.…”

Section: Proof Of Concept: In-situ Antenna Measurement Systemmentioning

confidence: 99%

“…Thanks to the development of Unmanned Aerial Vehicles (UAVs) in terms of cost reduction and improvement of technical capabilities, they have been successfully introduced in different areas related to communications networks, such as network coverage extension [9], [10] and in-situ antenna measurement and testing [11], [12], [13]. The latter allows the evaluation of the antenna radiation pattern in realistic conditions, analyzing the impact of the surroundings (e.g.…”

Section: Introductionmentioning

confidence: 99%

On the Use of Unmanned Aerial Vehicles for Antenna and Coverage Diagnostics in Mobile Networks

2018

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The capability of in-situ antenna measurement and diagnostics using a compact low-cost Unmanned Aerial System is presented. An onboard power sensor collects amplitude-only measurements, which are processed by means of an iterative phase retrieval technique. This technique allows recovering an equivalent currents distribution which characterizes the Antenna Under Test (AUT). These currents can be used for antenna diagnostics as well as to evaluate the field radiated by the AUT. In the field of mobile networks, the proposed system is of interest for rapid assessment of the antennas operational conditions providing radioelectric coverage within the mobile network cells and allowing the evaluation of antenna failures, such as incorrect tilt or beamforming/feeding network malfunction. Proof-of-concept of the system is conducted for testing a commercial Base Transceiver Station (BTS) antenna under normal and malfunctioning operation conditions, discussing the extension of the system to allow measurements at millimeter-wave frequency bands.

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“…Another even more flexible approach for the realization of in-situ measurements is the employment of a UAV which carries the probe antenna to the desired positions (Fritzel et al, 2016). First experiments and tests in the field of UAVbased antenna measurements are found in García-Fernández et al (2017) and Virone et al (2014).…”

Section: Introductionmentioning

confidence: 99%

Near-Field Antenna Measurements with Manual Collection of the Measurement Samples

Faul

Steiner²,

Eibert

2020

Adv. Radio Sci.

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Abstract. Near-field measurements are commonly performed in anechoic chambers which limits the flexibility of the measurements and requires high precision equipment to achieve exact results. In this contribution, we investigate a simple near-field measurement setup which does not use any sophisticated positioning system nor operates in a controlled environment. Instead, the probe antenna is moved by an operator person while the probe position is measured by a laser tracker. This implies that the measurement results will have a higher error level in comparison with antenna chamber measurements. However, excellent error levels are not always necessary, especially when it comes to on-site testing of the principle functionality of antennas. Measurement results are shown to illustrate the performance of the system.

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Introduction into an UAV-based near-field system for in-situ and large-scale antenna measurements (Invited paper)

Cited by 37 publications

References 4 publications

The Concept of a Flying Electromagnetic Field Measuring Platform

The Concept of a Flying Electromagnetic Field Measuring Platform

On the Use of Unmanned Aerial Vehicles for Antenna and Coverage Diagnostics in Mobile Networks

Near-Field Antenna Measurements with Manual Collection of the Measurement Samples

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