The theory and mechanical realization of an ideal scanning method for a single-channel imaging microwave radiometer

Kemppinen, M.; Hallikainen, M.

doi:10.1109/36.158868

Cited by 13 publications

(3 citation statements)

References 3 publications

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“…Since the T B of the target depends, in addition to frequency and polarization, on the incidence angle ψ, in the conical scanning each pixel in a single sweep (or scan) is observed at the same ψ [9,10]. To produce an image of the scenario, we have to change the value of ψ at each sweep.…”

Section: Conical Scanningmentioning

confidence: 99%

Microwave Radiometry Imaging for Forest Fire Detection: A Simulation Study

Bonafoni¹,

Alimenti²,

Angelucci³

et al. 2011

PIER

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Abstract-This paper deals with passive microwave imaging for fire detection by means of a single-channel ground-based radiometer. The simulation of images sensed in the presence of fire spots under different environmental and operative conditions will be presented. We will refer to a low-cost ground-based radiometer operating at 12.65 GHz. Scenarios where fires are un-visible and IR sensors are not useful with respect to a microwave imager will be investigated in deep, such as in the presence of vegetation canopy optically masking fire sources and smoke plumes in the early stage. These simulations will assess limits and capabilities of microwave imaging for the identification of little fires masked by forest areas.

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Section: Conical Scanningmentioning

confidence: 99%

Microwave Radiometry Imaging for Forest Fire Detection: A Simulation Study

Bonafoni¹,

Alimenti²,

Angelucci³

et al. 2011

PIER

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“…Figure 4 shows the scan parameters, scan patterns, the resulting images and data cross-sections of the ideal parallel scan for the HUT 93 GHz imager (Kemppinen and Hallikainen, 1992), modified TUDRAD (Skou, 1978) and a pendulum scan, for which the time spent on sampling is maximized, leading to heavy alongtrack oversampling. The platform is assumed stable in each case.…”

Section: Simulation Resultsmentioning

confidence: 99%

“…Previously, we presented a mathematical model for conical scan pattern optimization (Kemppinen and Hallikainen, 1992), but had no tool for comparing its performance with traditional patterns. At present, we are building a versatile 93 GHz imaging radiometer being capable of the comparison.…”

Section: Introductionmentioning

confidence: 99%

Imaging radiometer scan simulation results

Kemppinen¹,

Hallikainen²

Proceedings of IGARSS '94 - 1994 IEEE International Geoscience and Remote Sensing Symposium

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Imaging radiometer operation is simulated by a computer program, which computes the antenna radiometric temperature as the convolution of the antenna pattern with an artificial test target brightness temperature deviation and records the data values at the sampling moments as well as the corresponding pixel coordinates. Run results proved that a well-aligned scan pattern reduces data without loss in image quality. In addition, a helicopter-borne imager was found to need at least passive attitude stabilization and the state-of-the-art sampling rate was found too slow.

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Wei

Guo

et al. 1999

International Journal of Infrared and Millimeter Waves

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The theory and mechanical realization of an ideal scanning method for a single-channel imaging microwave radiometer

Cited by 13 publications

References 3 publications

Microwave Radiometry Imaging for Forest Fire Detection: A Simulation Study

Microwave Radiometry Imaging for Forest Fire Detection: A Simulation Study

Imaging radiometer scan simulation results

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