China Taiyuan Satellite Launch Center

 China Taiyuan Satellite Launch Center in the 

now launched for the

has forecast this year there will be extreme weather this summer, also proved a serious north-south situation shortly before the flood, and now launch remote sensing on the 10th for the What disaster this fall and winter it? So the Besides there are many satellites in the sky has been the work of ten now launch remote sensing from the perspective of disaster prevention and mitigation is too late.

the real reason he is obviously another map.

ten stereotyped in remote sensing, and some specifically mentioned

first census, that white is a full range of terrestrial and marine observation, tracking aircraft carrier battle group.

Second, detailed investigation, that is calibrated against the objectives that have been observed, one by one check, and then enter the new binding parameters provided to the relevant weapons systems, such as cruise missiles and ballistic missiles. If the objective features of the landscape and shape the parameters have changed to timely replacement.

Da Buda is one thing, for not going is another matter, would rather not play a thousand days, not one day of preparation! Being prepared to do!

preparations for military struggle is likely to become prepared for military struggle! Most people think that missile hit the aircraft carrier is the top of the vertical attack,Bailey UGG boots, in fact, difficult to attack the top.

21 is a slash and attack its side of the side deck, so to attack a much larger area on the (so-called missile area is large), and direct threat to the waterline.

Helenians make assumptions that we can only aim at the head and body and head who target more easily marked with it?

21's should be a L-type ballistic trajectory after reentry deceleration leveled, and then attack. Can not control the speed of re-entry, because the speed of the missile out of the atmosphere is high, even in the re-entry front brake and slow down the Earth's gravitational acceleration warheads will remain (meteorites are burned, why can refer to meteorites burn) into the atmosphere, the radar section of the black barrier does not work, also need to slow down to a targeting radar and other equipment to time to adjust the trajectory, and this needs to change the distance of time, it was L-type trajectory. To the warhead to target - adjusted - target time.

8 月 10 日 6 时 49 minutes, China Taiyuan Satellite Launch Center in the 

medium-range missile re-entry speeds of up to 5 kilometers per second, equivalent to 15 times the speed of sound, the adjusted rate diminished.

L-type ballistic Another benefit is increased to the interceptor missile to intercept the difficulty of targeting, it is engaged in the scramble to adjust, however. Will not be like the bike hit the bus before a U.S. spy satellite the size of so easily, sinking long trajectory of satellites over eight hundred and sixty times calculation.

current U.S. standard 3 is theoretically possible to intercept medium-range missiles, but I am afraid to deal with 21 very difficult. The main reason is because the L-trajectory is not good defense, it means the missile's head count, however. April 27, 2006 Long March-4B Remote Sensing 1 (Vanguard 5, FSW-5) synthetic aperture radar reconnaissance Taiyuan

2007 年 05 月 25 日 Long March-2D Remote Sensing 2 (Vanguard 6 FSW-6) digital imaging optical reconnaissance Jiuquan

2007 年 11 月 12 日 Long March-4C Remote Sensing 3 (Vanguard on the 7th FSW-7) synthetic aperture radar reconnaissance Taiyuan

2008 年 12 月 01 日 Long March-2D RS 4 (Vanguard 6 FSW-6) digital imaging optical reconnaissance Jiuquan

2008 年 12 月 15 日 Long March-2C RS 5 (Vanguard 7 FSW-7) synthetic aperture radar reconnaissance Taiyuan

2009 年 04 月 22 日 Long March-2C Remote Sensing 6 (Vanguard 7 FSW-7) synthetic aperture radar reconnaissance Taiyuan

2009 年 12 月 09 日 Long March-2D Remote Sensing 7 (Vanguard 6 FSW-6) digital imaging optical reconnaissance Jiuquan

2009 年 12 月 15 日 Long March-2D Remote Sensing 8 (Vanguard on the 7th FSW-7) synthetic aperture radar reconnaissance Taiyuan

2010 年 03 月 05 日 Long March-4C Remote Sensing 9 (Vanguard on the 6th FSW-6) digital imaging optical reconnaissance Jiuquan

2010 年 8 月 10 日 Long March-4C Remote Sensing 10 (Vanguard on the 7th FSW-7) synthetic aperture radar reconnaissance Taiyuan

== a radar for a light, reflection, responsible for optical Jiuquan, Taiyuan radio radar





remote sensing satellite launched by Beijing of the five branches, respectively (Institute of Space Technology) and the Shanghai Institute VIII (Shanghai Academy of Spaceflight Technology) developed. Carrying equipment from view, the five branches of the optical cameras, radar, eight homes are camera functions are different. Although the reports are monotonous, that is used to scientific experiments, land resources, crop yield assessment and disaster prevention and reduction and other fields. But in fact, still a great difference, published reports also said that the five branches of the star is the Fired several times in the continuous progress that is reflected in the respective rates, the estimated optical camera resolution should be within one meter, experts revealed that there is already reached 0. 5-0. 7 meters, radar camera should be near or at the second meters. From there you can also look at the accuracy of spy DF, CJ terrain matching, etc., information measureless to see you digging.

for the DF, CJ services much more than that a few remote sensing satellite, JB huge family, species are relatively complete, and some have been Remote Sensing 八号 not so simple it seems, the main payload in the satellite 上海技物所, Changchun Institute of Optics things, I am sure with the suited to take pictures ah.

may be a new type, both the The star So highly, certainly not a high-resolution, small things can not see or not see, what What what

With the heat of the battle space, the United States, Russia and Europe, now also Japan and India. Everyone is complaining about the Future space there will be

launched last year that cooperation

ocean surveillance satellite is divided into active and passive type, active-type ocean surveillance satellites carry large radar to scan the sea, by accepting the echoes to determine target location and characteristics, simply is a space-based ocean surveillance radar platform. Active radar and other platforms like Active Active surveillance satellite positioning accuracy, availability of more objective information, but susceptible to interference, the most important is the need to high-power energy. Soviet-era nuclear power have launched multiple satellites radar-based ocean surveillance satellite, the satellite in the series of numbers in the universe. 1980 Cosmos 954 crashed in Canada, the satellite is a type of nuclear-powered radar ocean surveillance satellites; passive surveillance satellite objectives through electronic devices intercepted radar signals emitted by the phase difference method or the comparative baseline interferometry method targeting, passive location and facilities, like the traditional, passive-type ocean surveillance satellite has a good advantage of concealment, but the accuracy is much lower.



the Jiuquan Satellite Launch Center in China Remote Sensing Satellite 九号 satellite.

Passive location method, the United States by the time difference location method, the best positioning accuracy of less than 4 km, the basic principle is the formation of three satellites, respectively, two baseline, a baseline by measuring the target radiation to the two-channel the time difference between satellites, two satellites obtained from the target to the poor, the use of two satellites from the poor to focus on the formation of a rotating two-surface, formed by the two baseline and two hyperboloid intersects the Earth's surface, positioning the two intersection , and through other information excluding a point of intersection, the other point of intersection is the goal that is the location of radiation sources. Contemporary stars of the Soviet Union is a single baseline interferometer positioning target location, the best positioning accuracy of approximately between 6 to 10 km, positioning method of payment is also a difference location, but poor positioning accuracy of single stars. Soviet satellite positioning accuracy are the main reasons is the baseline interferometry on a satellite positioning by satellite baseline length of the limited size limits, and in a multi-baseline positioning satellite satellite attitude also affected by the restrictions, requiring strict control of roll and pitch requires a high level of attitude control.

structural elements of the U.S. surveillance satellite

ocean surveillance satellite is used to detect, identify, track, locate, and monitor the global activities of surface ships and submarines underwater satellites, which can provide between ships, ship-shore communication between the 20th century 70 years developed a very advanced satellite technology. Coverage area due to its vast, multi-target detection, and is active, so it's a higher orbit, and to use more multi-satellite network system for continuous monitoring. E-ocean surveillance satellites and radar type is divided into two categories, it is the military alert and the development of an important branch of reconnaissance satellites. Since the advent of ocean surveillance satellites, widely used in detection and tracking of military ships at sea, various characteristics of ocean exploration. Wave height, strength and direction of ocean currents, sea surface wind speed, water temperature and salinity, and so the data is extremely valuable military intelligence. The Soviet Union and the United States has launched such a satellite. United States,

It is used to monitor submarine activity at sea ships, reconnaissance ships radar and radio communications satellites. World's first surveillance satellite of the Soviet Union on December 27, 1967 launch of the Soviet ocean surveillance satellites since 1973, entered the practical stage.



type ocean surveillance satellites the U.S. military electronics components

the role of ocean surveillance satellites is to detect and monitor ships and submarines at sea activities. It requires to monitor the sea in all weather conditions, the effective identification of enemy formation, course and speed, to accurately determine its location, can detect the submarine submerged underwater, tracking low-flying cruise missiles, sea targets for the operational command of dynamic information available of weapon systems over the horizon target instructions for the safe navigation of their ship to provide state of the sea and ocean features and other important data. In addition, it requires to detect a variety of marine features, such as wave height, the strength and direction of ocean currents, sea surface wind speed and the nature of the coast, allowing for the national economic construction.

In general, the need for objective monitoring of the ocean has the following characteristics: (1) a larger geometry, the spatial resolution of the probe not ask for much; (2), usually a metal structure,UGG shoes, radiation and scattering characteristics and the obvious visible features of the albedo, in particular, has a strong reflection of the ability of radio waves, so that the marine radio detection as an effective way to detect targets; (3) are mostly slow moving target, without using a high speed moving targets gaze monitoring means, however, require high time resolution and high accuracy were measured on the speed and course; (4) times the radiation of radio signals, can use electronic surveillance of technical approaches to achieve the objectives of the monitoring of marine .

general, ocean surveillance satellite should have a wide coverage to the discovery of sparse sea target; from the performance of weapons and combat the need to consider, sea target positioning accuracy must be better than 5km; the ocean military intelligence is always dynamic, target tracking and monitoring of marine, surveying the location, speed and course, requires time resolution of marine target surveillance system in at least 2 ~ 4h. The combination of these considerations, the satellite itself with its coverage range, high precision, short revisit time, detection means more features, making it a target to monitor the marine effective way. Usually, we formed by the ocean surveillance satellite system, called the target satellite ocean surveillance system.

being tested in the U.S. electronics component-type ocean surveillance satellites

ocean surveillance satellite 70 years of the 20th century developed advanced satellite technology. The former Soviet Union is the world's first national development of the ocean surveillance satellites. World's first surveillance satellite is the former Soviet Union, December 27, 1967 launch of the Since 1974, the Soviet Union began to launch electronic reconnaissance-type ocean surveillance satellite (US-P). These two types of reconnaissance satellites are mixed in the Later, with the hot plasma reactor US-A satellite crashed into the atmosphere twice, had to stop the former Soviet Union launched the satellite, while the effort to develop ways of working with binary network US-P satellite. As of the end of 1997, US-P has launched 46 satellites, of which 24 are basic, after the 22 are modified (US-PM). From December 1971 the United States began to launch the Officially launched in April 1976 with the first group of Currently, the United States is the implementation of the (SB-WASS-AirArmy) merger, both the Air Force's strategic air defense and naval marine surveillance needs. The United States in the development of weight, greater inclination satellites to meet defense and civilian needs. So far, only U.S. and Russian military power in the two ocean surveillance satellites using a practical goal of satellite ocean surveillance system. But India, France, Japan and other countries already have a surveillance satellite, other countries are also actively under development.

the world's goal of a typical satellite ocean surveillance system is the American The system in the late 20th century building of 60 years, to 1995, the last group of satellites launched, a total of three generations of the development of Among them, the main use of various means of reconnaissance satellites mainly to obtain information, sub-satellite is equipped with a radio antenna, radio antenna, measured by an electronic signal arrival time, to calculate the exact source of the signal transmission distance and orientation.



U.S. electronic component-type ocean surveillance satellites form

contrast, the third generation of ) adopted a new design baseline (positioning baseline length shortened by about 1 / 2) and improved detection and data forwarding device, the satellite lifted on Radio Astronomy Observatory of interference, working in the 1427 ~ 1434MHz transponders; ( 3) In addition to carrying a passive radio frequency sensors, but also carry the electro-optical / infrared imaging sensors. So that the satellites can detect the submarine discharge of hot water for cooling the reactor trail, to the purpose of tracking submerged submarines; (4) satellite system to monitor the marine broader goal to reach each area of satellite reconnaissance 7000km2 in Under certain conditions, can also monitor the same target after 108min. By a system composed of 4 satellite earth can 40 ~ 60 ° latitude to monitor any area more than 30 times a day. Thus, the layout of the structure, detection equipment and data collection equipment, the improved handling of the at the same time, it is very easy to meet the time resolution of the previously mentioned requirements.

the U.S. military The picture shows the Americans on speculation the U.S.

a variety of equipment to bring the system to improve and increase performance, but also makes the three generations of Among them, the third generation of However, although the weight and volume increased, but the third generation of

marine target surveillance system is an important function is to locate targets on the ocean. Satellite ocean monitoring system has been used in target positioning means there are multiple baseline single-Star TDOA location positioning and Samsung. Described in the text of the Should be noted that, similar to Therefore, Samsung E-orientation is mainly based on satellite positioning program. This solution technique is simple, payload technology is mature, signal sorting, pulse pairing easy to solve, the constellation of data processing can be carried out on the ground, only with fewer satellites to monitor the temporal resolution to meet the objectives of the requirements of satellite ocean target surveillance system for monitoring and positioning an efficient solution. The basic principle is: measure the two satellite signal receiving surface of a time difference (two satellites to the source of the distance difference), you can get to these two satellite hyperboloid focus, and then another two satellites and receive another two-surface, two pairs of curved lines and the ground at the turn of the intersection is the location of the source waters. Samsung TDOA location solution using the satellite's own attitude control accuracy can be reduced to 0. 5 ~ 0. 7 °, positioning the baseline can also be stretched as needed, positioning accuracy. However, it requires a very high satellite orbit control, but also must have a strict time synchronization system. Therefore, to achieve Samsung TDOA location, not only have a very high orbit control technology, high-precision clock technology, but also have inter-satellite links.

U.S. aircraft carrier strike capability with its powerful and fast mobility, on the coast of a country military and economic objectives constitute a great threat. As a State maritime surveillance capabilities are not sufficient to effectively locate hundreds of kilometers coastline,UGG boots cheap, the location of aircraft carrier battle groups,Discount UGG boots, the face of the basic aircraft carrier battle groups in a passive position beaten. So a country's anti-aircraft carrier operations, aircraft carriers must be resolved probe targeting the problem. Only the enhancement of maritime surveillance capability, the establishment of a comprehensive space-based ocean surveillance system to effectively monitor the movement of U.S. aircraft carriers.

diagram against maritime targets

Currently, national satellite surveillance to monitor the performance of real-time surveillance system is still not ideal, wartime environment, but also through the ocean monitoring satellite and ground-based long-range reconnaissance aircraft-the-horizon radar and precision positioning such as joint goals. From the graph you can see, first of all get through the preliminary information ocean surveillance satellites, through the relay satellite to transmit over-the-horizon radar weather monitoring, again before conducting combat or reconnaissance aircraft by monitoring satellite access target for anti-aircraft warfare accurate information. If a country can build up a comprehensive marine monitoring system, timely and reliable monitoring of aircraft carrier battle groups, the equivalent of a motorized aircraft carrier battle groups off the edge. No aircraft carrier battle group mobility advantage and land-based fighter in the direct confrontation inefficient, which is actually a huge aircraft carrier battle groups to defuse the threat.

A source also speculated that the remote sensing satellite   may constitute an intelligence, surveillance and reconnaissance as part of the network, the network will include the shore-the-horizon radar, passive surveillance systems, airborne early warning and control aircraft and future long-range unmanned aircraft, in order to provide the desired anti-ship ballistic missiles targeting data.