FY-III satellite features: a new over two three-high four difficult.

<P Align=center> Keywords: Expert Satellite FY-III features a new high over two three four hard </ P> <P> China's first "Storm III" polar-orbiting weather satellite will be the morning of May 27 .Taiyuan Satellite Launch Center. .Three satellite systems FY commander in an interview with high volcanic resolve the situation in detail the technical characteristics of satellite III. .World Scientific reports </ P> <P> news site, according to the China Meteorological Administration, said the high volcano, the situation III is a new generation of polar-orbiting satellite sun-synchronous orbit meteorological satellites. .The quality of 2298.5 kg, will use three-axis stabilized attitude control. .It is aimed at the international advanced level of technology designed satellites, high technology, complex system development is difficult, is the largest current investment, the most powerful Earth observation satellite. .FY-III satellite loaded with scanning radiometer, infrared spectrometer, microwave thermometer, microwave hygrometer, the resolution of spectral imaging device, microwave imaging, UV detector total ozone, ozone vertical UV detector, the Earth's radiation detector, .Solar radiation and space environment monitor, 11 monitor station payload. .</ P> <P> FY-III satellite meteorological satellite FY-than any previous technical characteristics? .In this connection, high volcano that developed the technology of satellite FY-III high starting point, is difficult, mainly in its technical characteristics, "a new, more than two or three high and four hard" and so on. .World Scientific reports </ P> <P> FY-III satellite was to be commonly known as a new generation of polar-orbiting meteorological satellite, mainly because it uses a new satellite platform, and loaded with many new payloads, in particular, .a lot of payload development for the first time in the country. .It can be said, in terms of detection means, detection capability, or in terms of performance indicators, the situation than the FY-III satellites are new breakthroughs and leapfrog development. .</ P> <P> "over two" is mainly reflected in the load and the satellite payload on more and more moving parts. .Three satellite FY-loaded a total of 11 payloads, the figure in the international and domestic are more prominent. .20 satellites with 35 moving parts stand-alone, and all rotating parts of the operating mode is not the same, and some uniform rotation, and some variable speed rotation, and some alternating fast and slow movement, which gave the internal stars .torque caused by the interference, but also to protect the long life and reliability of satellite raises difficult questions. .World Scientific reports </ P> <P> high volcanic explained that the satellite FY-III performance is relatively high, is keeping up with international advanced level of similar satellites developed. .Therefore, "three high" were reflected in the FY-III satellites, high resolution, high detection sensitivity, calibration precision, the highest spatial resolution of 250 meters, the highest detection sensitivity of 0.1 degrees Fahrenheit, the highest accuracy calibration .0.5 degrees Fahrenheit. .</ P> <P> "'Four hard' refers to the overall structure of the satellite design and layout is difficult, the entire star is difficult to electromagnetic compatibility, payload development of technical difficulty, microwave vacuum calibration test is difficult." As load .more, detection instrument observed a wide range of spectrum, from ultraviolet, visible, infrared to the microwave, cover almost the entire spectrum of remote sensing, to ensure there is enough observations for each instrument field of view and can not interfere with each other, which gives .The overall structure of the satellite design and layout of the larger difficulty; satellite transmitter power on more and more high-sensitivity receiver, wide spectrum, from the L-band, S-band, X band, until the millimeter wave band, the electromagnetic environment .complex, leading to difficulties in the entire Star electromagnetic compatibility; the satellite carrying the payload and more, and most of the payload is the first time in the development, but also to ensure that the performance indicators flush with the international similar products, so the development of the technical difficulty .also great; to achieve the quantitative application of microwave remote sensing, high precision calibration, the first time in the domestic microwave vacuum calibration tests difficult. .</ P> <P> high volcano also said that the current international trend of the overall development of meteorological satellite increases, more powerful, more and more load, the detection range more widely. .The future development trend of satellite capacity will be more comprehensive and professional capacity of more specialized direction. .World Scientific reports </ P> </ p>.