Passive and active Stokes vector measurements of microwave emission and scattering by precipitation

Hornbostel, A.; Schroth, A.; Sobachkin, A.; Kutuza, B. G.; Evtuchenko, A.; Zagorin, G.K.

doi:10.1109/igarss.1999.775037

Cited by 6 publications

(5 citation statements)

References 4 publications

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“…Considering the geometry of Fig 1, the surface rotation angle about the line of sight axis, θ p , is estimated from the angle of polarization (AOP) 15 bŷ…”

Section: Polarization Angle/orientationmentioning

confidence: 99%

Quantifying surface normal estimation

Reid¹,

Oxley²,

Eismann

et al. 2006

Polarization: Measurement, Analysis, and Remote Sensing VII

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An inverse algorithm for surface normal estimation from thermal polarimetric imagery was developed and used to quantify the requirements on a priori information. Building on existing knowledge that calculates the degree of linear polarization (DOLP) and the angle of polarization (AOP) for a given surface normal in a forward model (from an object's characteristics to calculation of the DOLP and AOP), this research quantifies the impact of a priori information with the development of an inverse algorithm to estimate surface normals from thermal polarimetric emissions in long-wave infrared (LWIR). The inverse algorithm assumes a polarized infrared focal plane array capturing LWIR intensity images which are then converted to Stokes vectors. Next, the DOLP and AOP are calculated from the Stokes vectors. Last, the viewing angles, θ v , to the surface normals are estimated assuming perfect material information about the imaged scene. A sensitivity analysis is presented to quantitatively describe the a priori information's impact on the amount of error in the estimation of surface normals, and a bound is determined given perfect information about an object. Simulations explored the impact of surface roughness (σ) and the real component (n) of a dielectric's complex index of refraction across a range of viewing angles (θ v ) for a given wavelength of observation.

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“…Considering the geometry of Fig 1, the surface rotation angle about the line of sight axis, θ p , is estimated from the angle of polarization (AOP) 15 bŷ…”

Section: Polarization Angle/orientationmentioning

confidence: 99%

Quantifying surface normal estimation

Reid¹,

Oxley²,

Eismann

et al. 2006

Polarization: Measurement, Analysis, and Remote Sensing VII

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show abstract

“…Due to this and other directions of research, interaction of microwave radiation with precipitations and clouds of various types is now extensively studied [3][4][5][6][7][8][9][10][11][12][13]. Many of them consist of non-spherical particles, having prevalent orientation like falling raindrops.…”

Section: Introductionmentioning

confidence: 99%

Intensity and polarization of thermal radiation of three-dimensional rain cells in the microwave band

Ilyushin¹,

Kutuza²,

Sprenger³

et al. 2017

AIP Conference Proceedings

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“…[6] We studied the properties of third Stokes vector component emission from precipitation both theoretically ] and experimentally at frequency of 13.5 GHz [Hornbostel et al, 1999a[Hornbostel et al, , 1999b[Hornbostel et al, , 2000. It was revealed that the rainfall contribution to third Stokes vector component of the system «precipitating cloud over underlying surface» achieve its maximal values (2 -4 K) within the frequency range 30-40 GHz.…”

Section: Introductionmentioning

confidence: 99%

Two‐dimensional synthetic aperture millimeter‐wave radiometric interferometer for measuring full‐component Stokes vector of emission from hydrometeors

Kutuza

Zagorin

2003

Radio Science

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Calculations of attainable values for space resolution and radiometric sensibility of a spaceborne two‐dimensional synthetic aperture microwave polarimetric interferometer are carried out. It is shown that for the most preferable Y‐shaped interferometer configuration, it is possible to achieve (within the transparency windows of waveband 3–22.5 mm) a space resolution of 0.5–1 km and a radiometric resolution close to 1 K at the receiver bandwidth of 100 MHz. For cross‐ and T‐shaped resolutions, values close to the above can be reached.

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Passive and active Stokes vector measurements of microwave emission and scattering by precipitation

Cited by 6 publications

References 4 publications

Quantifying surface normal estimation

Quantifying surface normal estimation

Intensity and polarization of thermal radiation of three-dimensional rain cells in the microwave band

Two‐dimensional synthetic aperture millimeter‐wave radiometric interferometer for measuring full‐component Stokes vector of emission from hydrometeors

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