Remote sensing satellites: French plans for spot satellites
نویسندگان
چکیده
منابع مشابه
Toward Scheduling Over-Constrained Remote-Sensing Satellites
The high demand for satellite imagery and the relative scarcity of commercial imaging satellites combine to produce scheduling problems in which one or more of the resources is over constrained. Over-constrained scheduling problems can be problematic for constraint programming methods because of the overhead associated with propagating constraints and the time spent backtracking over a large nu...
متن کاملPotential for Advancements in Remote Sensing Using Small Satellites
Small satellites for remote sensing – how is a small satellite characterized, what is the basis for it and what are the trends, how can small satellite missions be achieved, what are the cost drivers and what the application areas. The paper gives some insights in related facts and trends. The requirements concerning GSD and revisit time for the manifold application areas indicate the wide rang...
متن کاملAtmospheric Remote Sensing Using Space-based Radio Navigation Satellites
Given that agricultural cycles, human well-being, economic growth and many societal activities are affected by climate variability, a greater understanding of critical atmospheric parameters (such as refractivity, pressure, temperature and humidity) is of paramount importance. Recently many countries have investigated the feasibility of using the space-based radio navigation satellites of the G...
متن کاملImproving Image Quality in Remote Sensing Satellites using Channel Coding
Among other factors that characterize satellite communication channels is their high bit error rate. We present a system for still image transmission over noisy satellite channels. The system couples image compression together with error control codes to improve the received image quality while maintaining its bandwidth requirements. The proposed system is tested using a high resolution satelli...
متن کاملDetecting Massed Troops with the French SPOT Satellites A Feasibility Study for Cooperative Monitoring
One application that merits closer examination is the use of SPOT panchromatic imagery (10 meter resolution) to detect and monitor troops massing along an international border, near a demarcation line, or at key transportation nodes deep within a country. If commercial imagery acquired by the SPOT satellites or by comparable remote sensing systems could be used for such a purpose, the analysis ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nature
سال: 1982
ISSN: 0028-0836,1476-4687
DOI: 10.1038/298698a0