&lt;title&gt;Large-aperture passive millimeter-wave pushbroom camera&lt;/title&gt;

Moffa, P.J.; Yujiri, L.; Agravante, Hiroshi H.; Amici, Giovanni De; Dixon, David; Fornaca, S.; Jackson, Charles M.; Jaeger, Talbot; Jordan, Karen; Quon, R.; Rasmussen, Kent; Samec, Thomas K.; Shoucri, Merit

doi:10.1117/12.438130

Cited by 14 publications

(11 citation statements)

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“…However, the ability to navigate does not automatically give one the ability to avoid collisions with hillsides, trees, buildings, etc. MMW radiometers have shown the potential to perform this function while also providing some degree of battlefield situational awareness (1,2). It is this potential which has led to the work reported here.…”

Section: Introductionmentioning

confidence: 90%

Polarimetric radiometry of natural scenes

Wikner

2002

SPIE Proceedings

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This paper presents our group's most recent passive millimeter-wave (MMW) measurements made using a 94-GHz Stokes-vector radiometer. Included are images and analyses of treeline data. These data were collected to investigate the possible use of passive MMW sensors to perform the helicopter collision avoidance task. The treeline data presented were collected in both the summer and winter. The results of the analysis show that in the winter the detection of the treeline can be straightforward because of an oftenlow horizon sky brightness temperature. The contrast between the tree branches and the horizon are seen in the data to be about 10-15 K. The summer case, however, shows a horizon sky-to-tree brightness temperature ratio of about 1. A simple statistical analysis of the summer image shows that the trees, in our case, can be distinguished from the horizon sky based upon the statistical parameters alone.

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Section: Introductionmentioning

confidence: 90%

Polarimetric radiometry of natural scenes

Wikner

2002

SPIE Proceedings

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“…(2) The rang of PMMW radiometer is inversely proportional to square root of temperature sensitivity I1T min (3) The rang of PMMW radiometer is inversely proportional to the Fourth root of the output-bandwidth of the signal to noise ratio( S/ N ). In the above relationship between range and the parameters, the diameter of the antenna and frequency is greater role, receiver noise factor is the second and IF amplifier bandwidth and SNR is not less obvious.…”

Section: B Pmmw Range Equation Based On Image Detectionmentioning

confidence: 99%

“…The advantage of passive millimeter-wave imaging is that it is able to penetrate fog and other adverse weather conditions [1,2] and detect concealed weapons at airports and other locations, Passive millimeter wave imaging (PMMWI) is becoming well established in the fields of all-weather surveillance [3] and security scanning [4] in which the scenes to be imaged are typically at distances of meters to kilometers from the sensor, such as millimeter-wave imaging, radio astronomy, earth observation, military, weather forecast, and so on.…”

Section: Introductionmentioning

confidence: 99%

Detection performance of PMMW image

Zheng-mao

Yang

et al. 2008

2008 International Conference on Communications, Circuits and Systems

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“…It can penetrate clouds, fog, light drizzle, and some clothes, which is widely used in airport security, scene monitoring, concealed weapons detection, et al [3][4][5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Method of Passive MMW Image Detection and Identification for Close Target

Yang

Cui

et al. 2010

J Infrared Milli Terahz Waves

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This paper mainly deals with the problem of detecting and identifying target in close range, the performance of which will be effected by the radiometer's parameters and target's characteristics. According to the relationship between the range equation of the Passive Millimeter Wave (PMMW) and these parameters, we present a convenient statistical method based on PMMW image detection to solve the inherent problem by statistical radiometer parameters, which can be achieved by the W band radiometer experimental data. Finally, we validate the method by simulation and experiment. The results show that the method is convenient for detecting and identifying target in close range.

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<title>Large-aperture passive millimeter-wave pushbroom camera</title>

Cited by 14 publications

References 0 publications

Polarimetric radiometry of natural scenes

Polarimetric radiometry of natural scenes

Detection performance of PMMW image

Method of Passive MMW Image Detection and Identification for Close Target

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