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Parasitic Modulation of Microwave Signals by a Hypersonic Plasma Layer

Journal Article · · IEEE Transactions on Plasma Science

During hypersonic flight, compressional and viscous heating of the air can form a plasma layer which encases the aircraft. If the boundary layer becomes turbulent, then the electron density fluctuations can effect a parasitic modulation in microwave signals transmitted through the plasma. We developed an approach for studying the interaction of microwave signals with a turbulent, hypersonic plasma layer. The approach affords a great deal of flexibility in both the plasma layer model and the antenna configuration. We then analyzed a situation in which microwaves, transmitted from a rectangular aperture antenna, propagate through a turbulent plasma layer to a distant receiver. We characterized the first-and second-order statistics of the computed parasitic modulation and quantified the depolarization of the signal. The amplitude fluctuations are lognormally distributed at low frequencies and Rice-distributed at high frequencies. Fluctuations in the copolarized phase and amplitude of the far-field signal are strongly anticorrelated. Here, we used a multioutput Gaussian process (MOGP) to model these quantities. The efficacy of the MOGP model is demonstrated by recovering the time evolution of the copolarized phase given the copolarized amplitude and occasional measurements of the phase.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
NA0003525
OSTI ID:
2329572
Report Number(s):
SAND--2024-03658J
Journal Information:
IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 3 Vol. 52; ISSN 0093-3813
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

References (23)

An exact general remeshing scheme applied to physically conservative voxelization journal September 2015
Variational, stable, and self-consistent coupling of 3D electromagnetics to 1D transmission lines in the time domain journal February 2022
Remarks on multi-output Gaussian process regression journal March 2018
A software environment for effective reliability management for pulsed power design journal July 2021
On the probability distribution of line‐of‐sight fluctuations of optical signals journal January 1975
Time-Domain Modeling of RF Antennas and Plasma-Surface Interactions journal January 2017
Instantaneous polarization statistic property of EM waves incident on time-varying reentry plasma journal May 2018
Experimental study on correlation between amplitude and phase of electromagnetic wave affected by time-varying plasma by amplitude-modulated radio frequency plasma generator journal April 2021
Advanced validation of CFD-FDTD combined method using highly applicable solver for reentry blackout prediction journal November 2015
Spectral/hp Element Methods for Computational Fluid Dynamics book January 2005
Time-domain extrapolation to the far field based on FDTD calculations journal March 1991
Multiple scattering of EM waves by spheres part II--Numerical and experimental results journal May 1971
Characterization of the Dynamic Effects of the Reentry Plasma Sheath on Electromagnetic Wave Propagation journal March 2016
Adaptive Multistate Markov Channel Modeling Method for Reentry Dynamic Plasma Sheaths journal July 2016
Perturbed log-normal distribution of irradiance fluctuations* journal July 1974
Full-Field/Scattered-Field Formulation Containing a Dielectric Interface journal May 2014
Hypersonic Vehicle Telemetry Blackout Analysis journal March 2015
Modeling Radio Communication Blackout and Blackout Mitigation in Hypersonic Vehicles journal May 2015
Technique for Simulating and Evaluating Aero-optical Effects in Optical Systems conference January 2004
Implications and Mitigation of Radio Frequency Blackout During Reentry of Reusable Launch Vehicles conference June 2007
Towards Performance Portability in a Compressible CFD Code conference June 2017
EMPIRE-PIC: A Performance Portable Unstructured Particle-in-Cell Code journal June 2021
Gaussian Processes for Machine Learning book January 2005