Abstract The Global Positioning System (GPS) has been with us now for over a decade, providing positioning information across a broad range of . applications. In the geographical information systems area the potential of GPS technology is really only just starting to be realized The major areas of use have been for mapping the locations of features particularly for asset management This papa de...

A novel method of map matching using the Global Positioning System (GPS) has been developed for civilian use, which uses digital mapping data to infer the <100 metres systematic position errors which result largely from “selective availability” (S/A) imposed by the U.S. military. The system tracks a vehicle on all possible roads (road centre-lines) in a computed error region, then uses a method...

BACKGROUND Most water access studies involve self-reported measures such as time spent or simple spatial measures such as Euclidean distance from home to source. GPS-based measures of access are often considered actual access and have shown little correlation with self-reported measures. One main obstacle to widespread use of GPS-based measurement of access to water has been technological limit...

کچ ی هد پ ی ش مز ی هن ه و فد : ساسا د مردنس رد نامرد ي سفنت سرتس ي ظنت نادازون داح ي سکا لدابت م ي و نژ د ي سکا ي د هدوب نبرک تسا طسوت هک کبس اـه ي ناـمرد ي فلتخم ي هلمجزا لکتورپ INSURE ماجنا م ي دوش ا اذل . ي هعلاطم ن فدهاب اقم ي هس عضو ي ت اه ي ندب ي عضو رب رمد و زاب قاط ي سفنت ت ي هـب لاتـبم سراـن نادازون ردنس د م ي سفنت سرتس ي لکتورپ اب نامرد تحت داح INSURE ماجنا درگ ...

صخلملا The aim of this study isto examine whether radiofrequency (RF) used in cellular phone communications at a specific absorption rate (SAR) less than 1.2 w/kg could increase the spontaneous rate of sister chromatid exchanges (SCE) or elicit alterations both in the cell replication index (CRI) and mitotic index (MI) in human peripheral blood lymphocytes. Whole blood samples were obtained fro...

Error in radar satellite orbit determination is a common problem in radar interferometry (INSAR). For example, when we try to locate a radar test site with known geographic coordinates using the geocoding information in SLC (the latitude and longitude of the four image corners), the location is well away from the true position. Another example is when there is a significant disturbance in the d...

سلج 36 روم 07 / 02 / 94 و يس و دصكي نيمشش يشهوژپ ياروش هسلج تروص 1 . هسلج ليكشت تعاس و خيرات ،زور : زور هبنشود خيرات هب 07 / 02 / 94 هسلج نامز تدم 2 زا تعاس 14 تياغل 16 2 . يدعب هسلج خيرات : 28 / 02 / 94 3 . هسلج ليكشت لحم : يشهوژپ تنواعم رتفد 4 . هسلج رد هدننك تكرش ءاضعا : 1 ناراجشا يلع رتكد 2 رتكد يمولظم يلع رف 3 رفدنمجرا سابع رتكد 4 يرفعج دمحم رتكد يدنره 5 يضاق ديعس رتكد يبرغم ...

With the implementation of Earth Observation System (EOS), various technologies related to Earth Observation (EO) have been dramatically improved and extensively used. Geographical Information Systems (GIS) has also been developed greatly in recent years. Very few researches, however, have been done to integrate GIS and EO. Through analyzing some problems in the application of existing EOS and ...