The German satellite TanDEM-X was launched into orbit on a mission to map more accurately to be made available on the surface of the Earth.
The satellite will fly with radar technology with the same platform, called TerraSAR-X launched in 2007.
Both measured variations in the height of the globe with an accuracy of better than two meters.
Its digital elevation model will have several uses, from helping military aircraft to fly in ultra low height to show where rescue workers were worse the damage caused by an earthquake.
"Our goal is to generate a model to a resolution and quality as there is today," he told the BBC Dr Varka Helfritz, the company's processing of satellite images Infoterra GmbH.
"It will be a truly global product, not a patchwork of data sets that have been put together," he adds.
The Tandem-X was placed in a polar orbit a bit steeper than that occupied by the TerraSAR-X, about 514 kilometers above the planet.
"It's the first time that two satellites have been placed in a formation so close," said Brigadier General Thomas Reiter, a former astronaut and now a member of the executive board of the German Aerospace Center (DLR).
"Their orbits closer to the minimum distance of about 200 meters, which, as one imagines, will be a huge challenge for mission controllers."
Earth Changes
The pair of radar works constantly bouncing microwave pulses on the surface of the planet.
Because we keep track of how long it takes the signal to make the journey back, the instruments can measure variations in height.
The compact "ball" orbit satellites will provide a "stereo vision" allowing them to operate in interferometric mode, which acts as a satellite transmitter / receiver and the other as a second receiver.
To draw the level of detail-X TanDEM all 150 million square kilometers of Earth's land surface, will require three years.
Radar observations already have very extensive applications in military camps, civil and scientific.
Recent examples include Eyjafjallajoekull eruption in Iceland and the oil spill in the Gulf of Mexico. In the first event, the vision of microwave TerraSAR-X was able to look through the plume of ash, which allowed scientists to analyze the status of the volcano.
And on the stroke of the Gulf of Mexico, the satellite has to follow the progression of the layer of oil day and night by the way the radar signals are reflected in the contaminated water.
This is possible because the spread of oil tends to flatten the sea surface and this effect can be detected from space.
More Apps
Now, the improved data that will emerge from the mission TanDEM may extend the range of applications of radar technology.
For example, mobile operators can use the elevation model to identify the best places where they can locate their antennas.
The German Space Agency owns the hardware, services and consortium of European space projects, EADS Astrium, the company built and GbmH Infoterra has exclusive rights to market data.
Showing posts with label techo news. Show all posts
Showing posts with label techo news. Show all posts
Propose a national safety net in the U.S. broadband
Federal regulators recommend that Congress enact a program of grants to finance a national wireless broadband that allows police, firefighters and other emergency workers communicate.
The Federal Communications Commission proposed 16,000 to 18,000 million dollars in grants over ten years. Julius Genachowski its director said Thursday that the proposal would form part of the national broadband plan of the agency. That plan, which must submit to Congress next month, will propose the means to carry high-speed connections to the Internet to all Americans.
The proposed public safety network would use the wireless spectrum that was freed when TV broadcasts last year went from analogue to digital.
The Federal Communications Commission proposed 16,000 to 18,000 million dollars in grants over ten years. Julius Genachowski its director said Thursday that the proposal would form part of the national broadband plan of the agency. That plan, which must submit to Congress next month, will propose the means to carry high-speed connections to the Internet to all Americans.
The proposed public safety network would use the wireless spectrum that was freed when TV broadcasts last year went from analogue to digital.
The mobile phone industries, more powerful than ever
In Barcelona, held last week at Mobile World Congress, the big annual event for mobile phones, and one of the conclusions is that soon will be integrated fixed and mobile communications with devices that connect via WIFI to ADSL home and mobile telephony.
Mobile phones, from not so long ago, have revolutionized our lives. When We already use phone booths or enter into any settlement for a phone call, the students exchange messages through mobile phones, people walking down the street and talking on the phone, and no problem if we are delayed on a date.
It seems that companies involved in mobile phone business to know the word "crisis". They move in the world 620,000 million dollars a year, 57% of the telecoms market in this sector. And innovation is constant.
In Barcelona, they just held the Mobile World Congress: more than 50,000 professionals from 180 countries, 1,300 exhibitors and hotel occupancy rates of almost 95% in Barcelona. What will be next, and therefore more innovative products to enter this market?.
For example, devices with the format of the iPad, the latest venture of Apple, with screens from 4 to 9 inches, including e-books are connected to WiFi and third generation mobile telephony.
Within the new generation of SIM cards, the star appears as the SIM with integrated WiFi, which will facilitate Internet access in mobility of the PC, no problem of compatibility of the systems need not install software from the USB modem as so far.
The new SIM, as well as WiFi, have the capacity to process programs and applications, and improvements in connectivity with the introduction of NFC or contact, which can convert mobile credit cards secure. The new cards will have a web server in the card to facilitate, for example, secure banking transactions. They also increase its capacity, until now limited to 128 kilobytes to several megabytes.
In addition, the 24 top players in the world and several manufacturers have agreed to create a common store for mobile applications. It is not just a store, but its purpose is to develop a common standard applications so that these serve to all operating systems.
Thus, there will be a standard application for all operating systems. The new standard, which can be ready in 12 months, born of the convergence of OMTP Bondi, which is Telefonica, and JIL LVO, which is Vodafone, and the store may be open in 18 months, according to Carlos Melendez, director of Telefónica terminal.
The new software from Bill Gates
Microsoft CEO Steve Ballmer, presented the new version of the operating system for mobile phones from this manufacturer, the Windows Phone 7 Series. With the new system, Microsoft will for the first time to mobile phone virtual platform Xbox Live and Zune entertainment experience.
Furthermore, the leading mobile operating system to Microsoft, "Windows Phone", will integrate a button through which the user has direct access to Bing, the form of Microsoft. 7 incorporates the Windows Phone Windows Phone Hubs showing Web content, applications and services on a single screen.
Other distinctive innovation was the one who exposed the Korean multinational LG, with its project to extend mobile phone use to all audiences. So it made a small mobile operating system itself and allows Internet surfing at speeds up to 7.2 megabits per second and adjust prices. LG Electronic is the Mini, which considers the phone company's smallest and thinnest touchscreen market with a 3.2 inch screen.
Guest star
Google Chairman Eric Schmidt reassured about the controversy with China, publishers of books and Internet operators. Furthermore, co-founder and CEO of Apple, which was in Barcelona, was the winner of the personality of the year of the mobile phone industry that the media vote.
And if that was enough, there was also a guest star on the Mobile World Congress, Queen Rania of Jordan, who, through mobile phones, wants to extend the distance learning (e-learning) to the 72 million children in the world who can not attend school and can not read or write.
"In the recent disaster that has lived Haiti, mobile phones and the speed with which information travels in the messages have allowed the rescue of survivors and have provided many donations," said Rania of Jordan. According to her, the rulers have to psych up for the "urgency" that children can "enjoy a fundamental right like education." "We have the money, but need to make decisions in this regard," said the Queen.
Queen Rania said children in countries at war do not go to school for "fear" and called terminal companies cheaper for poor countries.
Mobile phones, from not so long ago, have revolutionized our lives. When We already use phone booths or enter into any settlement for a phone call, the students exchange messages through mobile phones, people walking down the street and talking on the phone, and no problem if we are delayed on a date.
It seems that companies involved in mobile phone business to know the word "crisis". They move in the world 620,000 million dollars a year, 57% of the telecoms market in this sector. And innovation is constant.
In Barcelona, they just held the Mobile World Congress: more than 50,000 professionals from 180 countries, 1,300 exhibitors and hotel occupancy rates of almost 95% in Barcelona. What will be next, and therefore more innovative products to enter this market?.
For example, devices with the format of the iPad, the latest venture of Apple, with screens from 4 to 9 inches, including e-books are connected to WiFi and third generation mobile telephony.
Within the new generation of SIM cards, the star appears as the SIM with integrated WiFi, which will facilitate Internet access in mobility of the PC, no problem of compatibility of the systems need not install software from the USB modem as so far.
The new SIM, as well as WiFi, have the capacity to process programs and applications, and improvements in connectivity with the introduction of NFC or contact, which can convert mobile credit cards secure. The new cards will have a web server in the card to facilitate, for example, secure banking transactions. They also increase its capacity, until now limited to 128 kilobytes to several megabytes.
In addition, the 24 top players in the world and several manufacturers have agreed to create a common store for mobile applications. It is not just a store, but its purpose is to develop a common standard applications so that these serve to all operating systems.
Thus, there will be a standard application for all operating systems. The new standard, which can be ready in 12 months, born of the convergence of OMTP Bondi, which is Telefonica, and JIL LVO, which is Vodafone, and the store may be open in 18 months, according to Carlos Melendez, director of Telefónica terminal.
The new software from Bill Gates
Microsoft CEO Steve Ballmer, presented the new version of the operating system for mobile phones from this manufacturer, the Windows Phone 7 Series. With the new system, Microsoft will for the first time to mobile phone virtual platform Xbox Live and Zune entertainment experience.
Furthermore, the leading mobile operating system to Microsoft, "Windows Phone", will integrate a button through which the user has direct access to Bing, the form of Microsoft. 7 incorporates the Windows Phone Windows Phone Hubs showing Web content, applications and services on a single screen.
Other distinctive innovation was the one who exposed the Korean multinational LG, with its project to extend mobile phone use to all audiences. So it made a small mobile operating system itself and allows Internet surfing at speeds up to 7.2 megabits per second and adjust prices. LG Electronic is the Mini, which considers the phone company's smallest and thinnest touchscreen market with a 3.2 inch screen.
Guest star
Google Chairman Eric Schmidt reassured about the controversy with China, publishers of books and Internet operators. Furthermore, co-founder and CEO of Apple, which was in Barcelona, was the winner of the personality of the year of the mobile phone industry that the media vote.
And if that was enough, there was also a guest star on the Mobile World Congress, Queen Rania of Jordan, who, through mobile phones, wants to extend the distance learning (e-learning) to the 72 million children in the world who can not attend school and can not read or write.
"In the recent disaster that has lived Haiti, mobile phones and the speed with which information travels in the messages have allowed the rescue of survivors and have provided many donations," said Rania of Jordan. According to her, the rulers have to psych up for the "urgency" that children can "enjoy a fundamental right like education." "We have the money, but need to make decisions in this regard," said the Queen.
Queen Rania said children in countries at war do not go to school for "fear" and called terminal companies cheaper for poor countries.
UN warns on electronic waste in developing countries
Sales of household electronic appliances will greatly increase over the next decade in developing countries, causing an environmental disaster if not created new strategies to process as many televisions, phones and computers waste, a report said Monday Nations United.
The environmental and health risks presented by the increasing amount of electronic waste worldwide are especially urgent in developing countries, since some receive waste from rich nations, said the study from the UN Environment Program (UNEP English ).
The wastes are accumulating around the planet at a rate of 36 million tonnes per year, said the report, which clarified that the available data are not sufficient.
U.S. produces 3.3 million tons of electronic waste per year and it is China with 2.3 million tonnes, he said.
The program's executive director Achim Steiner said the world was not prepared for the explosion in consumer electronics that happened in the last decade.
"The world now faces a massive wave of electronic waste and we will strike again, particularly the least developed countries, which could become a dump," Steiner told The Associated Press before the executive session of the UNEP in Bali.
Some Americans and Europeans, he said, African countries have sent falsely declared broken computers as donations. The computer ended up being discarded near slums and became a danger to the health of residents, he said.
The report predicted that by 2020 the number of discarded old computers that China will quadruple over 2007. In India, old refrigerators, which contain dangerous gases could triple by that date.
The biggest growth in recent years has been phones and similar devices, he added.
The environmental and health risks presented by the increasing amount of electronic waste worldwide are especially urgent in developing countries, since some receive waste from rich nations, said the study from the UN Environment Program (UNEP English ).
The wastes are accumulating around the planet at a rate of 36 million tonnes per year, said the report, which clarified that the available data are not sufficient.
U.S. produces 3.3 million tons of electronic waste per year and it is China with 2.3 million tonnes, he said.
The program's executive director Achim Steiner said the world was not prepared for the explosion in consumer electronics that happened in the last decade.
"The world now faces a massive wave of electronic waste and we will strike again, particularly the least developed countries, which could become a dump," Steiner told The Associated Press before the executive session of the UNEP in Bali.
Some Americans and Europeans, he said, African countries have sent falsely declared broken computers as donations. The computer ended up being discarded near slums and became a danger to the health of residents, he said.
The report predicted that by 2020 the number of discarded old computers that China will quadruple over 2007. In India, old refrigerators, which contain dangerous gases could triple by that date.
The biggest growth in recent years has been phones and similar devices, he added.
Cell phone lines will be 4,600 million at year end
The number of mobile lines in the world will rise to 4,600 million by the end of this year driven by emerging economies, said Tuesday the International Telecommunication Union (ITU), which accounts for about two subscriptions for every three people.The mobile broadband subscriptions will reach 600 million in 2009 and fixed broadband will amount to 500 million, said the telecommunications authority of the United Nations (UN).
ITU said its latest figures underline large regional differences, with penetration rates of mobile broadband very low in Africa and other emerging nations.There is a fixed broadband users per 1,000 inhabitants in Africa, compared to 200 subscribers per 1,000 Europeans.
In Africa have the highest relative price for communication services, especially broadband.
"The rapid growth of high-speed internet in the developed world contrasts starkly with the status quo in the developing world," ITU said in a statement.
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