Data provided by National Institute of Standards and Technology
Millimeter-wave channel sounders are much more sensitive to phase drift than their microwave counterparts by virtue of shorter wavelength. This matters when coherently combining untethered channel measurements ? scanned over multiple antennas either electronically or mechanically in seconds, minutes, or even hours ? to obtain directional information. To eliminate phase drift, a synchronization cable between the transmitter and receiver is required, limiting deployment range and flexibility indoors, and precluding most outdoor and mobile scenarios. Instead, we propose a blind technique to calibrate for phase drift by post-processing the channel measurements; the technique is referred to as blind because it requires no reference signal and, as such, works even in non-line-of-sight conditions when the (reference) direct path goes undetected. To substantiate the technique, it was tested on real measurements collected with our 60-GHz virtual phased-array channel sounder, as well as through simulation. The technique was demonstrated robust enough to deal with the most severe case of phase drift (uniformly distributed phase) and in non-line-of-sight conditions.
About this Dataset
Updated: 2026-08-20
Metadata Last Updated:
2020-06-11 00:00:00
Date Created:
N/A
Data Provided by:
Dataset Owner:
N/A
| Title | Blind Calibration of Phase Drift in Millimeter-Wave Channel Sounders |
|---|---|
| Description | Millimeter-wave channel sounders are much more sensitive to phase drift than their microwave counterparts by virtue of shorter wavelength. This matters when coherently combining untethered channel measurements ? scanned over multiple antennas either electronically or mechanically in seconds, minutes, or even hours ? to obtain directional information. To eliminate phase drift, a synchronization cable between the transmitter and receiver is required, limiting deployment range and flexibility indoors, and precluding most outdoor and mobile scenarios. Instead, we propose a blind technique to calibrate for phase drift by post-processing the channel measurements; the technique is referred to as blind because it requires no reference signal and, as such, works even in non-line-of-sight conditions when the (reference) direct path goes undetected. To substantiate the technique, it was tested on real measurements collected with our 60-GHz virtual phased-array channel sounder, as well as through simulation. The technique was demonstrated robust enough to deal with the most severe case of phase drift (uniformly distributed phase) and in non-line-of-sight conditions. |
| Modified | 2020-06-11 00:00:00 |
| Publisher Name | National Institute of Standards and Technology |
| Contact | mailto:[email protected] |
| Keywords | 5G , beamforming , clock drift , mmWave , phased-array antennas , phase coherence |
{
"identifier": "ark:\/88434\/mds2-2326",
"accessLevel": "public",
"contactPoint": {
"hasEmail": "mailto:[email protected]",
"fn": "Camillo Gentile"
},
"programCode": [
"006:045"
],
"landingPage": "https:\/\/data.nist.gov\/od\/id\/mds2-2326",
"title": "Blind Calibration of Phase Drift in Millimeter-Wave Channel Sounders",
"description": "Millimeter-wave channel sounders are much more sensitive to phase drift than their microwave counterparts by virtue of shorter wavelength. This matters when coherently combining untethered channel measurements ? scanned over multiple antennas either electronically or mechanically in seconds, minutes, or even hours ? to obtain directional information. To eliminate phase drift, a synchronization cable between the transmitter and receiver is required, limiting deployment range and flexibility indoors, and precluding most outdoor and mobile scenarios. Instead, we propose a blind technique to calibrate for phase drift by post-processing the channel measurements; the technique is referred to as blind because it requires no reference signal and, as such, works even in non-line-of-sight conditions when the (reference) direct path goes undetected. To substantiate the technique, it was tested on real measurements collected with our 60-GHz virtual phased-array channel sounder, as well as through simulation. The technique was demonstrated robust enough to deal with the most severe case of phase drift (uniformly distributed phase) and in non-line-of-sight conditions.",
"language": [
"en"
],
"distribution": [
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/BlindCalibration.pdf",
"mediaType": "application\/pdf"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/BlindCalibration.pdf.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig1.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig1.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig2.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig2.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig4a.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig4a.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig4b.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig4b.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5a.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5a.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5b.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5b.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5c.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5c.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5d.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5d.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5e.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5e.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5f.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig5f.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig6a.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig6a.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig6b.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig6b.mat.sha256",
"mediaType": "text\/plain"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig7a.mat",
"mediaType": "application\/octet-stream"
},
{
"downloadURL": "https:\/\/data.nist.gov\/od\/ds\/mds2-2326\/Fig7a.mat.sha256",
"mediaType": "text\/plain"
},
{
"accessURL": "https:\/\/doi.org\/10.18434\/mds2-2326",
"title": "DOI Access for Blind Calibration of Phase Drift in Millimeter-Wave Channel Sounders"
}
],
"bureauCode": [
"006:55"
],
"modified": "2020-06-11 00:00:00",
"publisher": {
"@type": "org:Organization",
"name": "National Institute of Standards and Technology"
},
"theme": [
"Advanced Communications:Wireless (RF)"
],
"keyword": [
"5G",
"beamforming",
"clock drift",
"mmWave",
"phased-array antennas",
"phase coherence"
]
}
