Matches in SemOpenAlex for { <https://semopenalex.org/work/W2760691640> ?p ?o ?g. }
Showing items 1 to 63 of
63
with 100 items per page.
- W2760691640 abstract "The exploitation of synthetic aperture radar (SAR) data for remote sensing and intelligence gathering purposes over complex terrains (such as urban areas) is a relatively immature subject. In this thesis, the detection and recognition of targets of military interest within urban areas is addressed. Such 'hard targets' may be vehicles or particular manmade structures within a scene (as opposed to geographical features or flora). Those techniques investigated can be divided into three areas building height extraction, urban SAR exploitation and polarimetric assisted target recognition. Theoretical performance limitations of interferometric SAR and shadow/layover analysis for building height extraction were derived and validated using example airborne data. Techniques to assist analysts exploit SAR data over urban areas were developed and demonstrated. A post image formation matched filter enabled scatterers with non uniform frequency and aspect angle responses to be categorised in wide bandwidth SAR imagery. Sub-aperture movies allowed the velocity of a moving target and the structure of a building's roof to be determined. The direction of multipath responses in squinted SAR was characterised. Additionally, modelling software enabled an assessment of the impact of radar shadowing on urban exploitation as a function of collection geometry, radar mode and terrain type. Polarimetric features were shown to aid the task of target recognition and temporal and between class stabilities were quantified using example inverse SAR turntable imagery. To polarimetrically calibrate this data, a generalised distortion model was derived together with the development and demonstration of a Fourier method for the determination of calibration parameters using a rotating dihedral." @default.
- W2760691640 created "2017-10-06" @default.
- W2760691640 creator A5004239471 @default.
- W2760691640 date "2007-01-31" @default.
- W2760691640 modified "2023-09-28" @default.
- W2760691640 title "The characteristics of hard targets in SAR imagery" @default.
- W2760691640 hasPublicationYear "2007" @default.
- W2760691640 type Work @default.
- W2760691640 sameAs 2760691640 @default.
- W2760691640 citedByCount "0" @default.
- W2760691640 crossrefType "dissertation" @default.
- W2760691640 hasAuthorship W2760691640A5004239471 @default.
- W2760691640 hasConcept C109094680 @default.
- W2760691640 hasConcept C10929652 @default.
- W2760691640 hasConcept C154945302 @default.
- W2760691640 hasConcept C161840515 @default.
- W2760691640 hasConcept C205649164 @default.
- W2760691640 hasConcept C31972630 @default.
- W2760691640 hasConcept C41008148 @default.
- W2760691640 hasConcept C554190296 @default.
- W2760691640 hasConcept C58640448 @default.
- W2760691640 hasConcept C62649853 @default.
- W2760691640 hasConcept C76155785 @default.
- W2760691640 hasConcept C87360688 @default.
- W2760691640 hasConceptScore W2760691640C109094680 @default.
- W2760691640 hasConceptScore W2760691640C10929652 @default.
- W2760691640 hasConceptScore W2760691640C154945302 @default.
- W2760691640 hasConceptScore W2760691640C161840515 @default.
- W2760691640 hasConceptScore W2760691640C205649164 @default.
- W2760691640 hasConceptScore W2760691640C31972630 @default.
- W2760691640 hasConceptScore W2760691640C41008148 @default.
- W2760691640 hasConceptScore W2760691640C554190296 @default.
- W2760691640 hasConceptScore W2760691640C58640448 @default.
- W2760691640 hasConceptScore W2760691640C62649853 @default.
- W2760691640 hasConceptScore W2760691640C76155785 @default.
- W2760691640 hasConceptScore W2760691640C87360688 @default.
- W2760691640 hasLocation W27606916401 @default.
- W2760691640 hasOpenAccess W2760691640 @default.
- W2760691640 hasPrimaryLocation W27606916401 @default.
- W2760691640 hasRelatedWork W1534849674 @default.
- W2760691640 hasRelatedWork W1623078492 @default.
- W2760691640 hasRelatedWork W193028629 @default.
- W2760691640 hasRelatedWork W2004369295 @default.
- W2760691640 hasRelatedWork W2031018639 @default.
- W2760691640 hasRelatedWork W2117330251 @default.
- W2760691640 hasRelatedWork W2122762451 @default.
- W2760691640 hasRelatedWork W2137737174 @default.
- W2760691640 hasRelatedWork W2548181134 @default.
- W2760691640 hasRelatedWork W2576831712 @default.
- W2760691640 hasRelatedWork W2625478074 @default.
- W2760691640 hasRelatedWork W2771430384 @default.
- W2760691640 hasRelatedWork W2772958271 @default.
- W2760691640 hasRelatedWork W2804124383 @default.
- W2760691640 hasRelatedWork W2904648314 @default.
- W2760691640 hasRelatedWork W2989423370 @default.
- W2760691640 hasRelatedWork W3018409196 @default.
- W2760691640 hasRelatedWork W3048972299 @default.
- W2760691640 hasRelatedWork W3138818617 @default.
- W2760691640 hasRelatedWork W2087474276 @default.
- W2760691640 isParatext "false" @default.
- W2760691640 isRetracted "false" @default.
- W2760691640 magId "2760691640" @default.
- W2760691640 workType "dissertation" @default.