Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"microwave radar"”.
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Feasibility of microwave radar system for proton emission therapy control.
… conducted on the feasibility of a non-intrusive microwave radar system, used to monitor patient's chest displacement, due to lung and heart motion. The feasibility of constructing a stand-alone prototype is also investigated.
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Methods of inferring aircraft geometry and motion from microwave radar reflections
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering, 1955.
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A PN encoded spread-spectrum microwave radar based backing and parking aid
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1996.
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Enhanced physics modelling and multistatic data integration for breast tissue reconstruction in microwave radar imaging
Microwave breast imaging offers a low-cost, portable, and non-ionizing alternative for breast cancer detection by exploiting the contrast in dielectric properties between malignant and healthy tissues. Its simplicity and safety make it particularly attractive for screening in under-served or remote …
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Optimization and Modeling for Optical Phased Array
… range, resolution, and detection speed than microwave radar. As the essential component of LiDAR, the optical phased array plays a fundamental role in the beamforming for the LiDAR.
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Radar Altimetric Studies of Polar Ice
Active microwave sensors are known to provide valuable information regarding snow and ice surfaces in the polar regions, where darkness and cloud cover prevail. Here, data collected in the Arctic by a Ku-band microwave radar altimeter, designed and constructed in the UK, are analysed. The two main …
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On the role of high frequency waves in ocean altimetry
… of wind, wind stress, and sea level using a microwave radar altimeter. The data were collected from a low-flying aircraft using a sensor suite designed to measure the surface waves, radar backscatter, the atmospheric flow, and turbulent fluxes within the marine boundary layer. This uncommon …
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Synergistic Combination of Microwaves and Acoustic Signals: Towards Improved Breast Imaging
Microwave-based breast imaging techniques offer the convenience of frequently-repeated scans involving no breast compression, non-ionizing radiation, inexpensive scan costs, sensitivity to water content and low-complexity 3D image reconstruction. These benefits are well-suited for its application …
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Fine Characterization of Leafing Phenology in the Brazilian Atlantic Forest by Optical and Microwave Remote Sensing
… and sensitive to cloud cover. Meanwhile, microwave radar is sensitive to vegetation moisture and so I ask whether radar remote sensing data can complement optical data in characterizing canopy seasonality by tracking the cyclical pattern in the water content of plant tissues and thus …
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Informing on Crop Water-Use, Stress, and Growth with Integrated Satellite Remote Sensing and Modeling
… that operate in the thermal infrared (TIR) and microwave wavelengths have proven useful to assess crop conditions. Assessing the ability of TIR and microwave measurements, individually and in combination, offers the ability to reduce measurement gaps and retrieve crop conditions, <em>e.g.</em> …
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SVALPEN Svalbard Radar Snow Penetration Experiment
… of ice is well studied using satellite-based radar remote sensing, thickness estimates are not achieving satisfactory accuracies required to produce high-quality remote sensing products. Main driver of this uncertainty is the lack of understanding of radar signal penetration into snow …
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Remote Sensing Characterization of Ecosystem Structure and Functional Types to Inform on Biodiversity Conservation in the Lowland Chocó Rainforest
… of texture derived from the decomposition radar polarization imagery. A novel radar metric, the Radar Forest Regeneration Index (RFRI), is developed from texture features derived from dual-polarization imagery. The texture of land cover classes followed gradient that correlated with forest …