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Determination of flight vehicle position and orientation using the Global Positioning System / K. Heckroth in SaLIS Surveying and land information science, vol 67 n° 1 (March 2007)

Public [article]  inSaLIS Surveying and land information science > vol 67 n° 1 (March 2007) . - pp 15 - 32 Titre : Determination of flight vehicle position and orientation using the Global Positioning System Type de document : Article/Communication Auteurs : K. Heckroth, Auteur ; K. Jeyapalan, Auteur ; John Vogel, Auteur Année de publication : 2007 Article en page(s) : pp 15 - 32 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] correction différentielle [Termes IGN] données 4D [Termes IGN] GPS en mode différentiel [Termes IGN] GPS-INS [Termes IGN] position [Termes IGN] temps réel [Termes IGN] véhicule aérien Résumé : (Auteur) In this paper we document the development of a numerical method for the determination of the position and angular orientation of a body using the Global Positioning System (GPS). By using data collected from multiple antennas on board a single flight vehicle, and by employing differential corrections supplied by a fixed ground receiver, this numerical method can produce Earth Centered Earth Fixed (ECEF) coordinates for a specified point on a vehicle, as well as the Euler angles (pitch, roll, yaw) expressing the angular orientation of the vehicle at that point. This analysis has applications for any mobile platform where position and orientation information is desired. The particular application we tested is in regards to aerial photogrammetry. Copyright SaLIS Numéro de notice : A2007-210 Affiliation des auteurs : non IGN Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83653 [article]

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Evaluation of the Newton-Raphson method for three-point resection in photogrammetry / S.M. Easa in SaLIS Surveying and land information science, vol 67 n° 1 (March 2007)

Public [article]  inSaLIS Surveying and land information science > vol 67 n° 1 (March 2007) . - pp 33 - 42 Titre : Evaluation of the Newton-Raphson method for three-point resection in photogrammetry Type de document : Article/Communication Auteurs : S.M. Easa, Auteur Année de publication : 2007 Article en page(s) : pp 33 - 42 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Photogrammétrie numérique [Termes IGN] méthode itérative de Newton-Raphson [Termes IGN] relèvement [Termes IGN] relèvement photogrammétrique Résumé : (Auteur) Three-point resection in photogrammetry (based on measured distances between three object points and the corresponding image coordinates) has been a viable approach because it does not require data on the object coordinates. Many iterative and closed-form solutions of the problem have been developed. The problem may have up to four solutions for the distances between the exposure station and the objects. Due to the complexity of the closed-form solutions, a simple method involving Newton-Raphson (N-R) search has recently been suggested for determining the unique (correct) solution for the Grunert's quartic polynomial. The N-R method, however, may not converge to the unique solution. This paper first describes the geometry of the three-point resection and the difficulties with the N-R method. A new Excel-based method that identifies all four solutions of the quartic polynomial is then presented. The method does not require initial estimates of the roots. Situations in which the N-R method is useful are highlighted. Application examples are used to illustrate the issues and concepts addressed. The proposed method, which provides insights into space resection, should be of interest to both researchers and educators. Copyright SaLIS Numéro de notice : A2007-211 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83654 [article]

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A GIS data modeling approach to port ballast water bioinvasion / S. Amoako-Atta in SaLIS Surveying and land information science, vol 67 n° 1 (March 2007)

Public [article]  inSaLIS Surveying and land information science > vol 67 n° 1 (March 2007) . - pp 43 - 50 Titre : A GIS data modeling approach to port ballast water bioinvasion Type de document : Article/Communication Auteurs : S. Amoako-Atta, Auteur ; Peter Kuntu-Mensah, Auteur Année de publication : 2007 Article en page(s) : pp 43 - 50 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] eau de mer [Termes IGN] faune aquatique [Termes IGN] migration animale [Termes IGN] port [Termes IGN] système d'information géographique Résumé : Auteur) The design and implementation of proactive strategies are the best and most cost-effective method of addressing port ballast water bioinvasion. Currently, no single comprehensive monitoring program provides the data necessary to produce an integrated assessment of the potential for ballast-water mediated species introductions into specific ports and/or coastal regions. The project uses a GIS-based data modeling approach that links relevant trade, climatological, water quality, and biological data sets to produce an integrated assessment tool for port-specific management of invasive species. The result is a database for assessing the risk, developing risk-reduction strategies, and preparing (e.g., predicting impact and budgeting for control) for the possibility of introduction. Copyright SaLIS Numéro de notice : A2007-212 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83655 [article]

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Corruption and land administration / Paul Van Der Molen in SaLIS Surveying and land information science, vol 67 n° 1 (March 2007)

Public [article]  inSaLIS Surveying and land information science > vol 67 n° 1 (March 2007) . - pp 5 - 13 Titre : Corruption and land administration Type de document : Article/Communication Auteurs : Paul Van Der Molen, Auteur ; A.M. Tuladhar, Auteur Année de publication : 2007 Article en page(s) : pp 5 - 13 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Administration [Termes IGN] cadastre étranger Résumé : (Auteur) The paper addresses corruption in land administration and land management. Based on information published in the free press, the conclusion was drawn that various forms of corruption occur as a result of abuse of discretion for personal gain, and nepotism or favoritism involving family or party members. Although the actual reach of corruption in land administration is difficult to determine, some measures are proposed on how to curb corruption. Copyright SaLIS Numéro de notice : A2007-213 Affiliation des auteurs : non IGN Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=83656 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
121-07011	RAB	Revue	Centre de documentation	En réserve L003	Disponible