Joel T. Johnson
Professor
Electrical and Computer Engineering
Campus Address:
205 Dreese Laboratory or 221 ElectroScience Laboratory
Department of Electrical and Computer Engineering
2015 Neil Avenue
Columbus, OH 43210 USA
phone: (614) 292-1593
fax: (614) 292-7297
email: johnson@ece.osu.edu
Education
B.E.E., Georgia Institute of Technology, 1991.
S.M., Massachusetts Institute of Technology, 1993.
Ph.D., Massachusetts Institute of Technology, 1996.
Research Interests
Microwave remote sensing of geophysical media, both active and passive.
Application of numerical techniques in electromagnetics to remote
sensing problems.
A few related web pages:
Research in remote sensing , propagation ,
radar systems , and
microwave radiometry
Ultra-wideband Software-Defined Microwave Radiometer for Ice Sheet Subsurface Temperature Sensing
CubeRRT: CubeSat Radiometer Radio Frequency Interference Technology Validation Mission
Design of an interference suppressing radiometer
Models for microwave thermal emission from the sea surface
Studies of sea surface hydrodynamics
Recent Publications
Note Copyright is held by IEEE for IEEE articles. See IEEE journal for final published versions of these papers.
Textbook:
Radiowave Propagation: Physics and Applications , C. A. Levis, J. T. Johnson, and F. L. Teixeira, Wiley, 2010.
---- Software Defined Radar / MIMO Radar ---
- M. Frankford, N. Majurec, and J. T. Johnson, "Software-defined radar for MIMO and
adaptive waveform applications," Proc. IEEE Radar Conf., 2010. (pdf )
- M. Frankford, J. T. Johnson, and E. Ertin, "Inclduing spatial correlations in the
statistical MIMO radar target model," IEEE Sign. Proc. Let., June 2010 ( pdf )
- M. Frankford, "Exploration of MIMO radar techniques with a software-defined radar,"
Ph.D. Dissertation, The Ohio State University, 2011. ( pdf )
- Poster on our group's Software Defined Radar work, 2010.
( pdf )
- Movie demonstrating adaptive PRF control ( wmv )
---- Interference suppression for microwave radiometry ---
- J. Park, J. T. Johnson, N. Majurec, N. Niamsuwan, J. R. Piepmeier,
P. N. Mohammed, C. S. Ruf, S. Misra, S. H. Yueh, and S. Dinardo,
"Airborne L-band RFI observations from the SMAPVEX08 campaign and
associated flights," IEEE Trans. Geosc. Rem. Sens.,
vol. 49, pp.3359-3370, 20111. (pdf )
- B. Guner, N. Niamsuwan, and J. T. Johnson, ``Performance study of
a cross-frequency detector for pulsed sinusoidal RFI in microwave
radiometry,"
IEEE Trans. Geosc. Rem. Sens., July 2010.
(pdf )
- J. T. Johnson and L. C. Potter, ``A study of detection
algorithms for pulsed sinusoidal interference in microwave radiometry,''
submitted to IEEE Trans. Geosc. Rem. Sens., 2007.
(pdf )
- B. Guner, M. T. Frankford, and J. T. Johnson,
``A study of the Shapiro-Wilk test for the detection of
pulsed sinusoidal radio frequency interference,"
IEEE Trans. Geosc. Rem. Sens., June 2009. (pdf ).
- B. Guner, J. T. Johnson, and N. Niamswaun, "Time and frequency blanking for radio frequency interference mitigation in microwave radiometry,"
IEEE TGRS, Nov 2007.
(pdf )
- J. T. Johnson, A. J. Gasiewski, B. Guner, G. A. Hampson, S. W. Ellingson, R. Krishnamachari, N. Niamswaun, E. McIntyre, M. Klein, and V. Leuski, "Airborne radio frequency interference studies at C-band using a digital receiver,"
IEEE TGRS, July 2006.
(pdf )
- N. Niamsuwan, J. T. Johnson, and S. W. Ellingson,
``Examination of a simple pulse blanking technique for RFI mitigation,"
Radio Science, June 2005.
(pdf )
- S. W. Ellingson and J. T. Johnson,
``A polarimetric survey of radio frequency interference in C- and X-bands in the continental United States using WindSAT radiometry," IEEE Trans. Geosc. Rem. Sens., March 2006.
(pdf )
- G. A. Hampson, S. W. Ellingson and J. T. Johnson,
`Design and demonstration of an interference suppressing microwave radiometer,"
IEEE Aerospace Conference, 2004.
(pdf )
- J. T. Johnson, A. J. Gasiewski, G. A. Hampson, S. W. Ellingson, R. Krishnamachari, and M. Klein, "Airborne radio frequency interference studies at C-band using a digital receiver,"
IGARSS 2004 conference, 2004.
(pdf )
---- Rough surface thermal emission and microwave radiometry ---
- J. T. Johnson, M. A. Demir, and N. Majurec,
``Through wall sensing with multi-frequency microwave
radiometry: a proof of concept demonstration,"
accepted by IEEE Trans. Geosc. Rem. Sens., 2009.
(pdf )
- J. T. Johnson and T. M. Elfouhaily, "Computation of ocean-like surface
thermal emission and bistatic scattering with the reduced local curvature
approximation," IEEE Trans. Geosc. Rem. Sens., July 2007.
(pdf )
- M. Demir and J. T. Johnson,
``Fourth order small slope theory of sea brightness temperatures," IEEE Trans. Geosc. Rem. Sens., Jan 2007.
(pdf )
- E. Ertin and J. T. Johnson,
``WindSat wind vector retrievals without explicit atmospheric modeling," internal report, 2006.
(pdf )
- J. T. Johnson,
``An efficient two-scale model for the computation of thermal emission and atmospheric reflection from the sea surface," IEEE Trans. Geosc. Rem. Sens., March 2006.
(pdf )
- J. T. Johnson,
``A study of rough surface thermal emission and reflection using Voronovich's small slope
approximation," IEEE Trans. Geosc. Rem. Sens., Feb 2005.
(pdf )
- J. T. Johnson,
``Higher order emission model study of bi-sinusoidal surface brightness temperatures," Chapter 3 in PIER 37, 2002.
(pdf )
- J. T. Johnson, H. Kim, D. Wiggins, and Y. Cheon,
``Sub-surface object sensing with a multi-frequency microwave
radiometer,'' IEEE Trans. Geosc. Rem. Sens., Dec 2002.
(pdf )
- B. Ungan and J. T. Johnson,
``A study of microwave thermal emission from a sub-surface
object," Microwave Opt. Tech. Letters, April 2002.
(pdf )
- J. T. Johnson and Y. Cai, ``A theoretical study of
sea surface up/down wind brightness temperature differences,''
IEEE TGRS, Jan 2002.
(pdf )
- J. T. Johnson,
``Comparison of the physical optics
and small slope theories for polarimetric thermal emission from the sea
surface,'' IEEE TGRS, Feb 2002.
(pdf )
- M. Zhang and J. T. Johnson,
``Comparison of modeled and measured second azimuthal harmonics of
ocean surface brightness temperatures,"
IEEE TGRS, Feb 2001.
(pdf )
- J. T. Johnson,
``Thermal emission from a layered medium bounded by a slightly rough
interface,"
IEEE TGRS, Feb 2001. (pdf )
- J. T. Johnson and M. Zhang, ``Theoretical study of the small
slope approximation for ocean polarimetric thermal emission,''
IEEE Trans. Geosc. Remote Sens., Sep 1999. (pdf )
- Johnson, J. T., R. T. Shin, J. A. Kong, L. Tsang, and K. Pak, "A numerical study of ocean polarimetric thermal emission," IEEE Trans. Geosc. Rem. Sens., Jan 1999. (pdf )
- Johnson, J. T., R. T. Shin, and J. A. Kong, "Scattering and thermal emission from a two dimensional periodic surface," Progress in Electromagnetics Research, vol. 17, Jan 1997. (postscript )
---- Analytical theories of rough surface scattering ---
- N. Pinel, J. T. Johnson, and C. Bourlier,
``A geometrical optics model of three dimensional scattering
from a rough surface over a planar surface,"
submitted to IEEE Trans. Ant. Prop., 2008.
(pdf )
- J. T. Johnson, K. Warnick, and P. Xu,
``On the geometrical optics (Hagfors' Law) and physical optics
approximations for scattering from exponentially correlated surfaces,"
IEEE Trans. Geosc. Rem. Sens., August 2007.
(pdf )
- A. Darawankul and J. T. Johnson,
``Band limited exponentical correlation function for rough surface scattering,"
IEEE Trans. Geosc. Rem. Sens., May 2007.
(pdf )
- T. Elfouhaily and J. T. Johnson,
``A new model for rough surface scattering,"
IEEE Trans. Geosc. Rem. Sens., July 2007.
(pdf )
- T. Elfouhaily and J. T. Johnson,
``Extension of the local curvature approximation to third order and full tilt invariance,"
Waves Random Media, vol. 16, p. 97--119, 2006.
(pdf )
- T. Elfouhaily, C. Bourlier, and J. T. Johnson,
``Two families of non-local scattering models and the weighted curvature
approximation," Waves Random Media, pp. 563, 2004.
(pdf )
- M. A. Demir and J. T. Johnson,
``Fourth and higher-order small perturbation solution for
scattering from dielectric rough surfaces,"
J. Opt. Soc. Am. A, Dec 2003.
(pdf )
- M. S. Gilbert and J. T. Johnson,
``A study of the higher order small slope approximation
for 3-D scattering from a dielectric Gaussian rough surface,"
Waves in Random Media, April 2003.
(pdf )
- J. T. Johnson, ``Third order small perturbation method for
scattering from dielectric rough surfaces," (including correction)
J. Opt. Soc. Am. A, Nov 1999. (pdf )
---- Numerical methods for rough surface scattering ---
- P. Naenna and J. T. Johnson, ``A physically based
preconditioner for quasi-planar scattering problems,''
accepted by IEEE Trans. Ant. Prop., 2008.
(postscript )
- D. Torrungrueng, J. T. Johnson, and H. T. Chou,
``Some issues related to the novel spectral acceleration method
for the fast computation of radiation/scattering from one dimensional
extremely large scale quasi-planar structures,''
Radio Science, Mar-Apr 2002.
(postscript )
- D. Torrungrueng and J. T. Johnson,
``An improved FB/NSA algorithm for the computation of scattering
from two-dimensional large scale rough surfaces,''
J. Electromag. Waves Applic., Oct. 2001.
(pdf )
- D. Torrungrueng, H. Chou, and J. T. Johnson,
``A novel acceleration algorithm for the computation of scattering
from two-dimensional large scale perfectly conducting random rough
surfaces with the forward-backward method,"
IEEE TGRS, July 2000. (pdf )
D. Torrungrueng and J. T. Johnson,
``The forward-backward method with a novel acceleration algorithm
(FB/NSA) for the computation of scattering from two-dimensional
large-scale impedance random rough surfaces,''
M. Opt. Tech. Letters, May 2001.
(pdf )
- H. T. Chou and J. T. Johnson, ``Formulation of forward-backward
method using novel spectral acceleration for the modeling of scattering
from impedance rough surfaces,"
IEEE Trans. Geosc. Remote Sens., Jan 2000. (pdf )
- Chou, H. T. and J. T. Johnson, "A novel acceleration algorithm for the computation of scattering from rough surfaces with the forward-backward method," Radio Science, no 5., 1998. (postscript )
- J. T. Johnson and R. J. Burkholder, ``Coupled
canonical grid/discrete dipole approach for computing scattering
from objects above or below a rough interface,''
IEEE TGRS, June 2001.
(pdf )
- Johnson, J. T., "On the canonical grid method for two dimensional scattering problems." IEEE Trans.
Ant. Prop., March 1998. (pdf )
---- Application of numerical methods for rough surface scattering ---
- J. T. Johnson, R. J. Burkholder, J. V. Toporkov, D. R. Lyzenga, and
W. J. Plant,
``A numerical study of the retrieval of sea surface height profiles from
low grazing angle radar data,"
submitted to IEEE Trans. Geosc. Rem. Sens., 2008.
(pdf )
- G. Pan and J. T. Johnson,
``A numerical method for studying modulation effects in
radar observations of the sea surface,"
accepted by IEEE Trans. Geosc. Rem. Sens., 2008.
(pdf )
- J. T. Johnson and R. J. Burkholder,
``A study of scattering from an object below a rough surface,"
IEEE Trans. Geosc. Rem. Sens., Jan 2004.
(pdf )
- J. T. Johnson,
``A numerical study of scattering from an object above a
rough surface,''
IEEE TAP, Oct. 2002.
(pdf )
- J. T. Johnson, J. V. Toporkov, and G. S. Brown,
``A numerical study of backscattering from time evolving
sea surfaces: comparison of hydrodynamic models,''
IEEE TGRS, Nov. 2001.
(pdf )
- A. R. Hayslip, J. T. Johnson, and G. R. Baker,
``Further numerical studies of backscattering from time
evolving non-linear sea surfaces,"
IEEE Trans. Geosc. Rem. Sens., Oct. 2003.
(pdf )
- B. Ungan and J. T. Johnson, ``Time statistics of propagation over
the ocean surface: a numerical study," IEEE TGRS, July 2000.
(pdf )
- Johnson, J. T., "A numerical study of low grazing angle backscatter from ocean-like impedance surfaces with the canonical grid method," IEEE Trans. Ant. Prop., Jan 1998. (pdf )
- Johnson, J. T., R. T. Shin, J. A. Kong, L. Tsang, and K. Pak, "A numerical study of the composite surface model for ocean backscattering," IEEE Trans. Geosc. Rem. Sens., Jan 1998. (pdf )
- H. Kim and J. T. Johnson,
``Radar image study of simulated breaking waves,"
IEEE Trans. Geosc. Rem. Sens., Oct. 2002.
(pdf )
- H. Kim and J. T. Johnson,
``Radar image studies of an ocean-like surface,"
Microwave Opt. Tech. Letters, Sept. 20 2001.
(pdf )
- H. Kim and J. T. Johnson, ``Radar images of
rough surface scattering: comparison of numerical and analytical
models,'' IEEE TAP, Feb 2002.
( pdf )
- D. Torrungrueng and J. T. Johnson,
``Numerical studies of backscattering enhancement of electromagnetic
waves from two-dimensional random rough surfaces using the FB/NSA method,''
JOSA A, Oct. 2001.
(pdf )
- Johnson, J. T., R. T. Shin, J. Eidson, L. Tsang, and J. A. Kong, "A method of moments model for VHF propagation," IEEE Trans. Ant. Prop., Jan 1997. (pdf )
---- Other topics ---
- G. Pan and J. T. Johnson,
``A numerical study of
the modulation of short sea waves by longer waves,"
IEEE Trans. Geosc. Rem. Sens., Oct 2006.
(pdf )
- N. Niltawach, C. Chen, J. T. Johnson, and B. A. Baertlein,
``A numerical study of buried biomass effects on ground-penetrating radar performance,"
IEEE Trans. Geosc. Rem. Sens., June, 2004.
(pdf )
- D. Torrungrueng, B. Ungan, and J. T. Johnson,
``Optical theorem for electromagnetic scattering by a three-dimensional scatterer in the presence of a lossless halfspace,"
IEEE Geosc. Rem. Sens. Let., April, 2004.
(pdf )
- R. J. Burkholder, I. J. Gupta, and J. T. Johnson,
``Comparison of monostatic and bistatic radar images,"
IEEE Ant. Prop. Mag., June 2003.
(pdf )
- K. M. Berger, G. R. Baker, and J. T. Johnson,
``A comparison of non-linear water wave models,''
Int. J. Comp. Fluid Dyn., May 2003.
(pdf )
- J. T. Johnson,
``A study of the four-path model for scattering from an object
above a halfspace,''
Microwave Opt. Tech. Letters, July 20 2001.
(pdf )
- J. Jenwatanavet and J. T. Johnson, ``An analytical
model for studies of soil modification effects on ground penetrating
radar,'' IEEE TAP, June 2001.
(pdf)
- E. Nassar, J. T. Johnson, and R. Lee, "A numerical model
for electromagnetic scattering from sea ice,"
IEEE Trans. Geosc. Remote Sens., May 2000. (pdf )
- H. Kim, J. T. Johnson, and B. Baertlein, ``High resolution Ka-Band
images of a small tree: measurements and models," IEEE Trans.
Geosc. and Remote Sens., March 2000. (pdf )
- Johnson, J. T., "Surface currents induced on a dielectric halfspace by a Gaussian beam: a useful validation for MOM codes," Radio Science, July-Aug, 1997. (postscript )
Personal
A page for my daughter Nari Johnson
A page for my son James Johnson
A page for my daughter Annie Johnson