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DTSTAMP:20251031T173436Z
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DTSTART;TZID=America/Chicago:20251031T110000
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DESCRIPTION:The FDTD technique is frequently employed for radar cross secti
 on (RCS) prediction of aircraft\, despite its well-known dispersion errors
 . Typically\, an aircraft exhibits an electrical size ranging from approxi
 mately 500λ to 1800λ\, where λ denotes the radar wavelength. Unfortunat
 ely\, along the axial direction\, the effective FDTD wavelength can reach 
 7λ to 25λ\; values that are unacceptable for the design and analysis of 
 modern air vehicles. In contrast\, the Non-Standard Finite-Difference Time
 -Domain (NSFDTD) Method NS-FDTD scheme yields zero dispersion error under 
 the same conditions.\nIn this presentation\, we propose a 3D subgrid model
  for NS-FDTD method\; enhancing the subgrid model by implementing a novel 
 boundary connection algorithm and applying multiple Gaussian smoothing fil
 ters. These improvements enabled stable simulations exceeding two million 
 iterations\, compared with 0.2 million iterations previous year\, with art
 ificial loss reduced to one-tenth of previous levels.\n\nSpeaker(s): \, YA
 SUSHI KANAI\n\nRoom: EC 3960\, 10555 W Flagler St\, \, miami\, Florida\, U
 nited States\, 33174\, Virtual: https://events.vtools.ieee.org/m/510504
LOCATION:Room: EC 3960\, 10555 W Flagler St\, \, miami\, Florida\, United S
 tates\, 33174\, Virtual: https://events.vtools.ieee.org/m/510504
ORGANIZER:mohammed@fiu.edu
SEQUENCE:40
SUMMARY:Non-Standard Finite-Difference Time-Domain (NS-FDTD) Method Stable 
 Subgrid Technique
URL;VALUE=URI:https://events.vtools.ieee.org/m/510504
X-ALT-DESC:Description: <br /><p style="text-align: justify\;">The FDTD tec
 hnique is frequently employed for radar cross section (RCS) prediction of 
 aircraft\,&nbsp\;despite its well-known dispersion errors. Typically\, an 
 aircraft exhibits an electrical size ranging from&nbsp\;approximately 500&
 lambda\; to 1800&lambda\;\, where &lambda\; denotes the radar wavelength. 
 Unfortunately\, along the axial&nbsp\;direction\, the effective FDTD wavel
 ength can reach 7&lambda\; to 25&lambda\;\; values that are unacceptable f
 or the design&nbsp\;and analysis of modern air vehicles. In contrast\, the
  Non-Standard Finite-Difference Time-Domain (NSFDTD)&nbsp\;Method NS-FDTD 
 scheme yields zero dispersion error under the same conditions.<br>In this 
 presentation\, we propose a 3D subgrid model for NS-FDTD method\; enhancin
 g the subgrid model&nbsp\;by implementing a novel boundary connection algo
 rithm and applying multiple Gaussian smoothing&nbsp\;filters. These improv
 ements enabled stable simulations exceeding two million iterations\, compa
 red with&nbsp\;0.2 million iterations previous year\, with artificial loss
  reduced to one-tenth of previous levels.</p>\n<p style="text-align: justi
 fy\;"><img src="https://events.vtools.ieee.org/vtools_ui/media/display/258
 3f955-f107-4def-9f11-48ec9455e287" width="1026" height="1328"></p>
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