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PRODID:IEEE vTools.Events//EN
CALSCALE:GREGORIAN
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TZID:America/New_York
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DTSTART:20220313T030000
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DTSTART:20221106T010000
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BEGIN:VEVENT
DTSTAMP:20220815T184804Z
UID:1F82AE95-6A85-4D29-A84A-D014899CFBF2
DTSTART;TZID=America/New_York:20220812T150000
DTEND;TZID=America/New_York:20220812T160000
DESCRIPTION:This Friday 3 pm is open to students (primarily Air Force Insti
 tute of Technology\, but all invited) presenting a 15 min (or so) talk on 
 what interests them. Open to any & all students\, so pass the word. This i
 s a good place for young folks to teach something new to old folks who sti
 ll like to learn\, & / or forgot what it was like to be young.\n\nCo-spons
 ored by: Wright-Patt Multi-Intelligence Development Consortium (WPMDC)\, T
 he DOD & DOE Communities\n\nSpeaker(s): Ray Wasky\, \n\nAgenda: \nTITLE: O
 ff-azimuth refraction of propagating high frequency (HF) radio waves produ
 ced by ‘tilts’ in the ionosphere and the implication for HF over-the-h
 orizon radar (OTHR) operation.\n\nABSTRACT: A state-of-the-art 3-dimension
 al high frequency (HF) propagation model is used to model the effects of i
 onospheric tilt\, to determine the degree to which off-azimuth propagation
  exits in the HF band (3-30 MHz). Off-azimuth propagation\, where an HF si
 gnal travels out of the great circle plane between an OTHR and its intende
 d target region\, can create errors in determining the azimuthal position 
 of airborne and surface ship targets\, especially if these errors are grea
 ter than the azimuth beamwidth of the radar. These errors can vary as a fu
 nction of transmission frequency\, time of day\, solar cycle sunspot numbe
 r\, elevation angle\, and range to target.\n\nVirtual: https://events.vtoo
 ls.ieee.org/m/321518
LOCATION:Virtual: https://events.vtools.ieee.org/m/321518
ORGANIZER:a.j.terzuoli@ieee.org
SEQUENCE:2
SUMMARY:[RESCHEDULED FROM LAST WEEK] Weekly "Inverted Conference" Seminar i
 n Remote Sensing & Communication
URL;VALUE=URI:https://events.vtools.ieee.org/m/321518
X-ALT-DESC:Description: <br /><p><strong>This Friday 3 pm is open to studen
 ts (primarily Air Force Institute of Technology\, but all invited) present
 ing a 15 min (or so) talk on what interests them.&nbsp\; Open to any &amp\
 ; all students\, so pass the word.&nbsp\; This is a good place for young f
 olks to teach something new to old folks who still like to learn\, &amp\; 
 / or forgot what it was like to be young.</strong></p><br /><br />Agenda: 
 <br /><p><strong>TITLE:&nbsp\; Off-azimuth refraction of propagating high 
 frequency (HF) radio waves produced by &lsquo\;tilts&rsquo\; in the ionosp
 here and the implication for HF over-the-horizon radar (OTHR) operation.&n
 bsp\;</strong></p>\n<p><strong>&nbsp\;</strong></p>\n<p><strong>ABSTRACT:&
 nbsp\; A&nbsp\;state-of-the-art 3-dimensional high frequency (HF) propagat
 ion model is used to model the effects of&nbsp\;ionospheric tilt\, to dete
 rmine the degree to which off-azimuth propagation exits in the HF band (3-
 30 MHz).&nbsp\; Off-azimuth propagation\, where an HF signal travels out o
 f the great circle plane between an OTHR and its intended target region\, 
 can create errors in determining the azimuthal position of airborne and su
 rface ship targets\, especially if these errors are greater than the azimu
 th beamwidth of the radar.&nbsp\; These errors can vary as a function of t
 ransmission frequency\, time of day\, solar cycle sunspot number\, elevati
 on angle\, and range to target.</strong></p>
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