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10,554 results for “measurements”
NEECK Validation: Acoustic Measurements and BEM Simulations
<p>This repository contains the supporting data for the paper entitled "Acoustic Validation of a BEM-Suitable 3D Mesh Model of KEMAR'', K. Young, G. Kearney, and A. I. Tew, at the 2018 AES International Conference on Spatial Reproduction - Aesthetics and Science, Tokyo. Available at: http://www.aes.org/e-lib/browse.cfm?elib=19662. Please cite both the paper and dataset if used.</p> <p>Note: the azimuth angle system used in this work increments positively in the left direction, such that 90° is on the left and 270° is on the right. In elevation, -90° is below, +90° is above. </p> <p>---</p> <p>The data is organised as follows:</p> <p>- NEECK_HRIR_measured.sofa<br> (SOFA file (SimpleFreeFieldHRIR) containing the 185 acoustically measured HRIRs for the Neck-Extended Easily Computable KEMAR (NEECK))<br> - NEECK_HRTF_simulated.sofa<br> (SOFA file (SimpleFreeFieldTF) containing the 10,205 simulated HRTFs for the Neck-Extended Easily Computable KEMAR (NEECK))<br> - AdditionalData<br> (Zip folder containing data processed during the analysis stages)<br> - averageResponse_measured.mat<br> (mat file containing the average IR responses, corresponding inverse filters and inverse filter generation parameters)<br> - averageResponse_simulated.mat<br> (mat file containing the average TF responses in linear scale)<br> - measuredData.mat<br> (mat file containing the following data:)<br> - IRs<br> (Measured impulse responses as in SOFA file. Dimensions: M1xRxN1)<br> - IRs_DTF<br> (Impulse responses after application of average response inverse filter. Dimensions: M1xRxN1)<br> - HRTFs<br> (HRTF magnitudes in linear scale. Dimensions: M1xRxN1)<br> - HRTFs_dB<br> (As above in decibel scale. Dimensions: M1xRxN1)<br> - DTFs<br> (DTF magnitudes in linear scale - after application of average response inverse filter. Dimensions: M1xRxN1)<br> - DTFs_dB<br> (As above in decibel scale. Dimensions: M1xRxN1)<br> - measFs<br> (sampling rate of measured responses: Dimensions: 1x1)<br> - allSourcePositions_measured<br> (measured source positions in spherical coordinates (azimuth, elevation, radius). Units: degrees, degrees, metres. Dimensions: M1x3)<br> - simulatedData.mat<br> (mat file containing the following data:<br> - IRs<br> (Impluse responses generated from the simulated HRTF data. Dimensions: M2xRxN2)<br> - HRTFs_complex<br> (Complex simulated HRTF data. Dimensions: M2xRxN3)<br> - HRTFs_mag_dB<br> (Magnitudes of simulated HRTF data in decibel scale. Dimensions: M2xRxN3)<br> - DTFs_mag_lin<br> (Magnitudes of directional transfer function (DTF) data in linear scale. Dimensions: M2xRxN3)<br> - DTFs_mag_dB<br> (As above in decibel scale. Dimensions: M2xRxN3)<br> - simFs<br> (sampling rate of generated impulse responses. Dimensions: 1x1)<br> - allSourcePositions_simulated<br> (simulated source positions in spherical coordinates (azimuth, elevation, radius). units: degrees, degrees, metres. Dimensions: M2x3)<br> - frequencies<br> (frequencies used in the simulation. Dimensions: N3x1)<br> - license.mat<br> (mat file containing licensing information)<br> - License.txt<br> (Text file detailing the license under which this data is published.)</p> <p>For enquiries regarding the data in a different format, please email kaey500@york.ac.uk. <br> ---</p> <p>Data Dimensions:</p> <p>M1 = number of measured source positions, in this case 185<br> M2 = number of simulated source positions, in this case 10,205<br> R = number of channels, in this case 2, where 1 and 2 correspond to left and right respectively<br> N1 = number of samples in measured impulse responses, in this case 1024<br> N2 = number of samples in generated impulse responses, in this case (number of samples in HRTF*2)+2 = 400<br> N3 = number of samples in simulated transfer functions, in this case, the number of frequency points, 199</p> <p>---</p> <p>This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), with no warranty; or the implied warranty of merchantability or fitness for a particular problem.</p> <p>---</p> <p>Data produced by Kat Young at the AudioLab, Dept. of Electronic Engineering, University of York.<br> Contact: kaey500@york.ac.uk</p>
Festival of Frequency Measurement 1 October 2019
<p>Event: Festival of Frequency Measurement</p> <p>UTC date: 1 october 2019</p> <p>Beacon frequency: 5.0 MHz</p> <p>McMahan, Tom K1FR</p> <p>Latitude: 41.83</p> <p>Longitude: -77.10</p> <p>Start time of .CSV file: 0:00:04</p> <p>Station description:</p> <p>Long wire antenna</p> <p>FlexRadio 6700</p> <p>Freq ref - GPSDO</p> <p>Freq measurement type - fldigi </p> <p> </p> <p> </p>
Festival of Frequency Measurement 1 October 2019
<p>Festival of Frequency Measurement 1 October 2019</p> <p>Robert, VA3ROM</p> <p>Thunder Bay Ontario Canada 48.452682 -89.20975 216 m ASL</p> <p>At start of event SFI=68 A=14 K=2 and at end of event SFI=68 A=14 K=0.</p> <p>File 1 created usging Fldigi 4.1.08 + PowerSDR (KE9NS version) + Flex-1500 SDR + GDPSDO + ground-mounted vertical (resonant on 30 m band).</p> <p>File 2 created using Fldigi 4.1.08 + SDRuno + RSPduo (no GPSDO) + 80 m 1/4 wave sloping dipole orientated and sloping down from north (6 m AGL) to-south (1 M AGL).</p> <p>Everything ran fully automatic so no problems encountered thanks to a couple of days of preparations to setup receivers, antennas and software and emergency backup power (just in case).</p> <p>I was also able to record WWV's received dBm and SNR values with the SDRuno software if that data would be of any value to see how it would relate to frequency shifts of the time signal over time go hand--in-hand or not.</p> <p>73.</p> <p> </p>
Festival of Frequency Measurement Submission
<p>Festival of Frequency Measurement 1 October 2019</p> <p>Event: WWV Centennial</p> <p>UTC Date: 30 September 2019 2232Z</p> <p>Beacon frequency: 5 MHz</p> <p>Station Name: K7JKM Jerry Martin</p> <p>Maidenhead Grid Square: CN85LA</p> <p>City: Keizer, Oregon, United States</p> <p>Antenna: AV680B Vertical</p> <p>Receiver Type: Yaesu FT950 Amateur Radio Transceiver</p> <p>Frequency Reference Type: Internal BFO</p> <p>Frequency Measurement Technique: Signal Link USB interface to Fldigi as described in your materials</p> <p>No extraordinary difficulties, the usual varying noise conditions peaking around local noon, 1900 UTC</p> <p> </p>
Festival of Frequency Measurement 1 October 2019
<p>Ray Overmyer, KB3NSH</p> <p>Lat Long 40.49 -79.85</p> <p>Start Time of .csv 1 October 2019 00:55:52</p> <p>Hardware config:</p> <p>- G5RV Jr 20 feet up</p> <p>- Antenna orientation North-South</p> <p>- Receiver Icom 7200</p> <p>- Frequency reference type : Icom 7200</p> <p>- Frequency measurement technique: fldigi Freq Anal mode</p> <p>Difficulties had: 5 MHz was in the noise, so I monitored 10 MHz</p>
Festival of Frequency Measurements 1 October 2019
<p>Data from fldigi from 1 Oct 2019 WWV 5 MHz</p> <p>Location: EL88rb</p> <p>Antenna: Inverted L</p> <p>Reeiver: ICOM 7300</p> <p> </p>
Festival of Frequency measurement Submission
<p>Festival of Frequency Measurement Submission</p> <p>—-</p> <p>event: WWV Centennial</p> <p>UTC date: 2019-10-01</p> <p>beacon frequency: 5MHz</p> <p> </p> <p>station name: N7XZ</p> <p>latitude and longitude and/or maidenhead grid square: DN41BR </p> <p>city: Logan</p> <p>state or region: Utah</p> <p> </p> <p>Station: Kenwood TS-480 SAT with high stability crystal</p>
Festival of Frequency Measurement Submission 1 October 2019
<p>Festival of Frequency Measurement 1 October 2019</p> <ul> <li>Denis Hinz W3FAY</li> <li>38.9975N, 76.755278W - FM18ox</li> <li>Bowie, Maryland</li> <li>Beacon Frequency - 5 MHz</li> <li>Start time 0000 UTC, 1 October 2019</li> <li>A description of station hardware configuration, including <ul> <li>Antenna type - vertical</li> <li>Receiver type - Elecraft K3</li> <li>Frequency reference type - internal .5 ppm TXCO</li> <li>Frequency measurement technique - FLDIGI Frequency Analysis procedure</li> </ul> </li> <li>Any other information you believe would be necessary for proper scientific interpretation of your measurements - Vertical is sub-optimal (random length of wire helically wound on 28' fiberglass telescoping pole with autotuner tuned to 40 Meters and currently no radials); K3 zero-beat to 15 MHz WWV 48 hours prior to measurement event.</li> </ul>
Festival of Frequency Measurement 1 October 2019
<p>Festival of Frequency Measurement Submission</p> <p>Callsign: AA6LK</p> <p>Latitude and Longitude of the Recording: 38.9425 -121.1562 (CM98kw)</p> <p>Start time of the .csv file: Sept. 30 23:55:11 UTC</p> <p> station hardware</p> <p> Antenna type: Hustler 5BTV multiband vertical.</p> <p> Receiver type: Yaesu FT-847, set to AM-narrow mode.</p> <p> Frequency reference: HP Z3805A GPSDO as external reference to Marconi 2019 signal generator.</p> <p> Frequency measurement technique: GPSDO and signal generator combination were used to generate a</p> <p> signal at 4.999 MHz which was injected into the receiver, tuned to 4.9995 MHz, along with</p> <p> the measured signal, creating a ~1 kHz beat tone which was tracked by fldigi. No </p> <p> correction to fldigi clock error was included but was found to cause fldigi readings to be</p> <p> 0.012 Hz high. Injected signal level was adjusted to exceed maximum expected</p> <p> measurement signal level, resulting in a constant "S-meter" reading of S9+20.</p>
Festival of Frequency Measurement 1 October 2019
<p>Festival of Frequency Measurement 1 October 2019</p> <p>Event: WWV Centennial</p> <p>UTC Date: 20191001</p> <p>Beacon frequency: 05.000 000</p> <p>Name and Callsign: Jimmy Herrera XE3I (X-Ray Eco Three India)</p> <p>Latitude: 21.1742 N</p> <p>Long: -86.8465 W</p> <p>Grid: EL61nc</p> <p>City: Cancun, Quintana Roo - Mexico</p> <p>Difficulties had: No</p> <p>Antenna type: Rotative Dipole (40 mts.)</p> <p>Antenna pointing direction (if applicable): North - South</p> <p>Receiver type: Kenwood TS-590S</p> <p>Frequency reference type: 04.999.00 USB</p> <p>Frequency measurement technique: Fldigi ver 3.23.21</p> <p>Soapbox: Very interesting experiment.<br> <br> Released publicly under Creative Commons: Yes</p> <p>Open Source: Yes</p> <p>Creative Commons Attribution 4.0: Yes</p>
Festival of Frequency Measurement 1 October 2019 WB4HIR
<p>Festival of Frequency Measurement 1 October 2019</p> <p>Rodger Adams, WB4HIR</p> <p>WWV 5 MHZ</p> <p>Start time 21:02:38 UTC Sept. 30 2019</p> <p>Stop time 1:27:03 UTC Oct. 2 2019</p> <p>Antenna, attic mount, 70 ft balanced doublet</p> <p>Kenwood TS-590s receiver with TCXO</p> <p>FLDIGI in analysis mode, Receiver tuned to 4.999 USB mode</p> <p>Lat 35.08N Long 80.83W Alt 619 ft above MSL EM95OB</p> <p>Charlotte, NC</p>
Frequency Measurement 1 October 2019 W0EJO
<ul> <li>Robert L. Heider</li> <li>Madenhead grid EM48tp</li> <li>Sept. 30, 2019 22:48:24</li> <li>A description of station hardware configuration, including <ul> <li>Mosley Vertical RV4C</li> <li>ICOM-718</li> <li> </li> </ul> </li> </ul>
Festival of Frequency Measurement 1 October 2019
<p>Festival of Frequency Measurement Submission - event: WWV Centennial</p> <p>UTC date: 2019-10-01</p> <p>beacon frequency: 5 MHz</p> <p>station name: AC6SL</p> <p>latitude and longitude and/or maidenhead grid square: 37.13N 122.12W CM87wd</p> <p>city: Boulder Creek</p> <p>state or region: California, USA</p> <p>Difficulties had: poor reception during daylight hours</p> <p>Anything you know about the stability of your equipment: receiver stability ~1 Hz, soundcard stability unknown</p> <p>40m Delta Loop antenna, Elecraft K3 transceiver, Dell laptop, linux, fldigi 4.0.1</p> <p>recording started 40 minutes before, & ended 30 minutes after target date</p> <p> </p>
AG7PQ WWV Frequency Measurement Oct 1, 2019 UTC
<p>Festival of Frequency Measurement 1 October 2019</p> <ul> <li>Gregory Weatherford - AG7PQ</li> <li>47.74, -122.34</li> <li>23:41.05 September 30, 2019</li> <li>Station type <ul> <li>40m Dipole Antenna</li> <li>East/West pointing direction</li> <li>Icom 7300</li> <li>5 MHz (1000 Hz tone)</li> <li>FLDIGI</li> </ul> </li> </ul>
Festival of Frequency Measurement 1 October 2019 - N7IVV
<p>Event: WWV Centennial</p> <p>1 Oct 2019</p> <p>Beacon frequency: 5 MHz</p> <p>Bradley P. Risk - N7IVV</p> <p>Location: 38.534132°, -77.791047° (FM18cm)</p> <p>Remington, Virginia, United States</p> <p>Start time: 23:54:53</p> <p>Antenna: 80m dipole oriented NE/SW</p> <p>Receiver: Yaesu FTDX-1200</p> <p>Frequency measurement: FLdigi</p>
Festival of Frequency Measurement 1 October 2019
<p>Festival of Frequency Measurement Submission</p> <p>—-</p> <p>event: WWV Centennial</p> <p>UTC date:1 oct 2019</p> <p>beacon frequency: 5 Mhz</p> <p> </p> <p>station name:n1naz</p> <p>latitude and longitude and/or maidenhead grid square: fn42gu</p> <p>city:Londonderry</p> <p>state or region:NH</p> <p> </p> <p>Difficulties had:late start late finish</p> <p> </p> <p>Anything you know about the stability of your equipment: Flex Radio 6500 TXO</p>
Festival of Frequency Measurement Submission
<p>Festival of Frequency Measurement, 1 October 2019, WWV/WWVH at 5 MHz</p> <p>Data measured and submitted by Jan A. Tarsala, WB6VRN</p> <p>Measurements made at K6TY, 34.1175, -118.0198, DM04xc</p> <p>One-wavelength 40 m vertical loop antenna with maximum response at 70 degrees to true North</p> <p>Kenwood TS-870S receiver with SO-2 TCXO option (all local oscillators and DSP are derived from this one frequency reference) operated in a temperature-stable residential environment</p> <p>TS-870S mode was CW (i.e. upper sideband), 50 Hz IF bandwidth, 1000 Hz beat note frequency</p> <p>Baseband audio beat note frequency measured using Fldigi 4.0 running under Mac OS 10.11 with time set using NTP and audio sampling rate corrected in accordance with Fldigi instructions</p> <p>Two files are uploaded due to a late start: the file K6TY DM04xc 5 MHz.csv covers 1500 to 2400 UTC 1 October 2019 (nine hours), while the file K6TY 34.1175 -118.0198 5 MHz.csv covers 1500 UTC 1 October 2019 to 1500 UTC 2 October 2019 (twenty-four hours). The initial frequency error and the aging of the SO-2 TCXO are obvious when the data are plotted.</p>
Academic Excellence, Website Quality, SEO Performance: Is there a Correlation? - Dataset of measurements, test results and calculated ratings.
<p>This Dataset, in two files of xlsx format, contains the data of all measurements, test results and calculated ratings as they are described in the methodology of the research article "Academic Excellence, Website Quality, SEO Performance: Is there a Correlation".</p>
Festival of Frequency Measurement 1 October 2019 measurements by NT5TM
<p>Your Name and Callsign: Anthony Mendina, NT5TM<br> Latitude and Longitude of the Recording: 32.82, -96.71 / EM12pt<br> Start time of the analysis: ‎Monday, ‎September ‎30, ‎2019, ‏‎21:51:16 UTC<br> End time of the analysis: ‎Wednesday, ‎October ‎2, ‎2019, ‏‎05:05:11 UTC<br> A description of station hardware configuration, including<br> Antenna type: Long wire<br> Antenna pointing direction (if applicable): n/a<br> Receiver type: Kenwood TS-2000<br> Frequency reference type: WWV 5MHz carrier<br> Frequency measurement technique: FLDIGI Frequency Analysis mode 1kHZ offset from nominal carrier frequency</p>
Stress-State Differences between Sedimentary Cover and Basement of the Songliao Basin, NE China: In-situ Stress Measurements at 6–7 km depth of an ICDP Scientific Drilling Borehole (SK-II)
<p>The excel file is the original ASR test data (Nine samples, 6293 - 6846 m vertical depth).</p>
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