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China Space Military:Recon, Satcom, Navi, ASAT/BMD, Orbital Vehicle, SLV, etc.

No, ... and no offence !

But I really have that strange feeling that since a few days/weeks we have a few new members who only start strange treads, begin with even stranger questions most often not related to a topic, do not explain what they want to tell ... IMO there are only "out" for a rumble !

Regarding Your question, I really don't know.
Deino
 
Strange question.

Once I read somewhere,it is possible for an observation satellite to capture an image of a police officers name plate badge,and read the letters written on it ,if you can pin point the systems exactly on it.For example a equipment like the Hubble Telescope can capture such kind of image.

But the answer depends on what you mean by "detection" I suppose.There is a systematic process for everything,if you design it to perform that process,it will perform that process just fine.
This news piece can gives a idea of the whole "detection" system.It may help.
Chinese Newspaper: Spy Satellites Will Target US Carriers

But a strange question nonetheless.
 
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Of course it can. Satellite resolution and display resolution on your phone are two different things,having a resolution of 50m basically means objects larger than 50m x 50m will be picked up and imaged by the sensor,you can see the AC rather clearly on the final image,it won‘t look like some kind of pixel art.

Objects smaller than 50m x 50m will be treated as noise and blended with background,so GF 4 is rather ideal for spotting ACs,but tracking a moving AC is a different story,it takes time to refresh,download and analyze the satellite data.
 
China's Jilin-1 commercial satellite has a resolution of 0.72 meter

China launches first commercial-use Earth imaging satellite | GBTimes

O45eEI2.jpg

6 space launches, 31 satellites in 25 days! What a feast for space fans of China! :china:
 
Why do You think so ?
Yes. I agree. Why not?

:coffee: Well. Here is an opinion since he could produce none.

Chinese Newspaper: Spy Satellites Will Target US Carriers
By Wendell Minnick 1:40 p.m. EDT October 8, 2015

China’s military is getting its ducks in a row for what many experts see as a realistic competence at destroying US aircraft carriers during a confrontation scenario over Taiwan.

In a recent issue of the Chinese-language state-run China Youth Daily newspaper, a report claims that the Gaofen-4 geostationary earth observation satellite will be launched by the end of this year with the EXPRESS PURPOSE of HUNTING US aircraft carriers. The satellite is equipped with a visible light imager at 50 meters and infrared staring optical imager at 400 meters.

During the 1996 Taiwan Strait missile crisis, the Chinese military was flustered by the presence of two US aircraft carriers sent to protect Taiwan during missile exercises designed to intimidate the island.

Since then, the military has created the means of holding at risk US aircraft carriers with two new anti-ship ballistic missiles, the DF-21D and the new DF-26. However, locating US aircraft carriers is not easy, and China has developed a VARIETY of airborne and space-based sensors to ease the search.

“The Gaofen series of satellites, as the first series of satellites developed under the Medium and Long-term Development Plan for Science and Technology, plays an important role in building this system,” Kevin Pollpeter, senior research analyst on China at Defense Group Inc., said. “As China develops and deploys long-range, precision strike assets, it recognizes the need for an effective C4ISR [Command, Control, Communications, Computers, Intelligence, Surveillance and Reconnaissance] platforms, to take imagery of large swaths of the ocean to attempt to locate targets such as aircraft carriers.”

Pollpeter said that during the time that it would take to process the imagery, the aircraft carrier would have moved, but its general location would have been fixed.

Hans Kristensen, director of the Federation of American Scientists' Nuclear Information Project, agrees that the Gaofen-4 will have limitations, but “China does not need to track every single US aircraft carrier around the globe — only those within striking range of China.” For knowledge of a carrier’s location to be useful for operators of the DF-21D, the satellite would have to be able to relay that information, more or less, continuously to the guidance system for a DF-21D to be able to strike the carrier.

The Gaofen appears to be another important piece in China’s evolving space-based monitoring capabilities — a network that will work together to locate, target and destroy aircraft carriers and destroyers.

The tragedy, according to Ian Easton, a China military specialist at Project 2049 Institute, is that China has made CLEAR its intention TO TARGET US carrier groups with ballistic missiles.

“Yet the Obama administration chose not to issue a diplomatic demarche or raise the issue with [Chinese President Xi Jinping] at the White House,” Easton said. “By default, the White House is legitimizing China’s military buildup, which is aimed at [the US] and [its] friends. Any other sovereign country in the world would protest full throatedly. America’s silence on this issue is self-defeating.”

In early September, Beijing commemorated the 70th anniversary of its victory over imperialist Japan with a parade that unveiled both the DF-21D and the new DF-26. The DF-21D is operational and deployed; the status of the DF-26 is unclear.
 
The satellite does not need to identify an aircraft carrier but it can track moving objects larger than 50 meters.
 
google translate..
http://www.chinaspaceflight.com/manned-spacecraft/new-generation-manned-spacecraft.html
A new generation of multi-purpose manned spacecraft: the return capsule virtual vibration test

Multipurpose spacecraft re-entry capsule model

1444029346109057.jpg


Returns cabin plus structural configuration of the spherical cap is conical sidewall outsole, its main structure is divided into top, side walls, the end of three parts.

The top is the return capsule of the main load-bearing parts, the need to resist the harsh impact load in the return section parachute process. Top umbrella cabin, catapults, GNSS antenna, antenna and other equipment blackout.

Sidewall includes heat shield, honeycomb panels and siding, in which heat-resistant layer 4, and paste with honeycomb panels together, then screwing manner tendons on the panel is connected. Mounted on the side wall of the main attitude control, pneumatic measuring function device.

Outsole is a key component cushion landing impact loads by inner and outer skins and stringers folder tendons composition. Outsole outsole made of metal and heat-resistant outsole of two parts, wherein the metal outsole mainly installed an information management, energy management, recycling, pneumatic measurement functions of equipment; heat-resistant outsole laid on aerodynamic measurement function devices.

Multi-purpose finite element model of the spacecraft re-entry capsule total of 66,693 nodes, 71,956 units

1444029384999186.jpg


Because the spacecraft returns required versatile cabin development tasks will not carry out the physical vibration test, vibration test is the only virtual structural vibration assessment program.
Beijing Institute of Spacecraft Environment Engineering established the entire star virtual vibration test system, which contains a mechanical shaker subsystem, control subsystem, power amplifier subsystem, filter and amplifier subsystems; and through virtual vibration test engineering and application technology research, virtual vibration test technology achievements already made the conversion, set up a virtual vibration test spacecraft systems engineering applications, including multi-system co-simulation analysis module, analysis model correction module, jig analysis and simulation modules and test conditions analysis module.

1444029413964203.jpg


Since being developed in the multi-purpose spacecraft re-entry capsule only requires virtual vibration test, so take advantage of this application software systems engineering acceptance level of the return capsule, identify environmental conditions vibration level virtual tests and make herald and evaluation. Control error multipurpose spacecraft re-entry capsule of virtual sine sweep test and random vibration test, the test at ± 5% or less, in line with a multi-purpose spacecraft re-entry capsule virtual vibration test technical requirements.

40t double shaker vertical finite element model contains 6300 nodes, 5388 units; horizontal finite element model contains 6596 nodes, 5217 units.

Return capsule jig model contains 1537 nodes, 904 units. Jig first natural frequency is greater than 100Hz, to meet the spacecraft vibration test fixture rigidity of the basic requirements.

From Spacecraft Environment Engineering 32 Volume 4


A new generation of multi-purpose manned spacecraft re-entry capsule type projects, Yang - overall unit manned spaceflight, he was one of three jobs, production and protect, schedule, technical elements of the three systems engineering; exploration and practice of reuse equipment warranty system; created 12 months to complete the whole project is designed to AIT's performance; breaking the model number of key technical points.

1438240820127807.jpg


When the world was still concerned about the Shenzhou on the 10th, when the five branches of aerospace manned spacecraft has launched a new generation of general-purpose Laboratory spacecraft feasibility studies. A new generation of spacecraft technology advanced, high starting point, difficult, is to mention the level of China's manned spacecraft, on the steps of the key projects.
At the crucial moment of the demonstration program, Yang, Wu Wenrui, Dr, and many other comrades often through the night to do the program, change the design, and finally in a short period of three months to complete the multi-purpose spacecraft re-entry capsule of feasibility studies, realization the engineering project.
Today cargo spacecraft, a new generation of manned spacecraft model task is moving forward steadily, manned spacecraft will take up the new lab overall mission to manned spaceflight new journey.

1438240990616476.jpg
1438241019592752.jpg


Program envisages
present only one manned rocket Long March 2F, after the revamp of the Long March 5 rockets and the Long March 7 can also be used to launch a manned spacecraft. Due to a new generation of manned spacecraft technical indicators higher than the "Shenzhou" spacecraft, the entire ship will also be a significant increase in weight, the Long March 2F rocket can not meet the emission requirements of the new generation of manned spacecraft. Preliminary analysis, after the revamp of the Long March 5 and the Long March rocket launch 7 new generation of manned spacecraft into near-Earth orbit capacity respectively 14t and 20t.
Corresponding to two next-generation manned spacecraft launch vehicles shown in Figure 14, the weight was 14t and 20t. The modular design of the spacecraft, two identical spacecraft re-entry capsule, carrying different weight propellant propulsion module to accommodate different mission requirements. The main technical characteristics of the spacecraft is:
(1) the number of passengers: 2 to 6;
(2) re-entry speed: Adaptation second cosmic velocity reentry;
(3) autonomous flight: ≥ 21 days;
(4) the dwell time: ≥ 2 years;
(5) the speed increment; 14t spaceship 800m / s, 20t spacecraft 1700m / s;
(6) Task Support: 14t support near-Earth orbit spacecraft, asteroid and Mars missions, 20t spacecraft moon mission support;
(7 ) configuration: two cabin configuration;
(8) the aerodynamic shape: the return capsule using blunt body shape;
(9) escape way: self-powered escape or escape tower escape;
(10) re-entry heat shield material: low-ablative light quality heat-resistant material;
(11) the return capsule of the main structure: the whole wall structure;
(12) Recovery: Group umbrella + balloon, with maritime and land landing capability;
(13) Power generation: photovoltaic power generation systems;
(14) GNC: High precision navigation sensors, jet control;
(15) monitoring and control communication: with black impaired communication capabilities;
(16) Reusable: primarily through landing derogations designed to ensure reusable equipment from as little impact during landing.

新一代多用途载人飞船:返回舱虚拟振动试验 - China Spaceflight
 
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1442810869413450.jpg


长征六号乘着“宝钢专车”去发射

信息来源:宝钢新闻中心 日期:2015-9-30

宝钢工程技术集团苏州大方特种车股份有限公司在接到“自行式火箭运输起竖车”的研发、制造任务后,立即组成了攻关项目团队,按照“通用化、组合化、系列化”设计方案要求,综合采用了多种特种车辆的前沿技术和先进的电子信息技术。在为期一年多的研制过程中,苏州大方攻关团队相继攻克了车辆自动导航、精确定位对接、高负荷起竖和耐低温等多项技术难题,成功为长征六号新一代运载火箭度身定制了这辆“私人座驾”。

该车最大载重120吨,长征六号运载火箭“躺在”上面就可完成从转运、起竖,一直到加注发射的所有流程,使发射准备时间从几星期缩短至7天。该车辆能通过计算机控制实现自动无人驾驶,在发射阵地实现自主导航驾驶及精确定位对接,定位精度误差不超过5毫米。:enjoy:
 
1442810869413450.jpg


长征六号乘着“宝钢专车”去发射

信息来源:宝钢新闻中心 日期:2015-9-30

宝钢工程技术集团苏州大方特种车股份有限公司在接到“自行式火箭运输起竖车”的研发、制造任务后,立即组成了攻关项目团队,按照“通用化、组合化、系列化”设计方案要求,综合采用了多种特种车辆的前沿技术和先进的电子信息技术。在为期一年多的研制过程中,苏州大方攻关团队相继攻克了车辆自动导航、精确定位对接、高负荷起竖和耐低温等多项技术难题,成功为长征六号新一代运载火箭度身定制了这辆“私人座驾”。

该车最大载重120吨,长征六号运载火箭“躺在”上面就可完成从转运、起竖,一直到加注发射的所有流程,使发射准备时间从几星期缩短至7天。该车辆能通过计算机控制实现自动无人驾驶,在发射阵地实现自主导航驾驶及精确定位对接,定位精度误差不超过5毫米。:enjoy:


I think Jilin 1 has sent images back, can you post them here?
 
Concept of satellite resolution:

RESOLUTION
sat_30m.jpg

15 Meter Resolution
An overview of Salt Lake City

A satellite's resolution is defined as the size of the smallest individual component or dot (called a pixel) from which the image is constituted.

If a satellite's resolution is stated as "5 meters", this means that each pixel in the imagery is 5 meters by 5 meters in size. While there are cases where objects smaller than 5 meters in a given dimension can be identified by such a satellite the general rule of thumb is that objects smaller than the resolution of the satellite in the largest dimension are not readily or reliably distinguishable in such imagery.

sat_5m.jpg

5 Meter Resolution
A close-up shot of Salt Lake City Airport

WorldSat International Inc. | Products & Services | Digital Data Services
 

$70 mln Russian-Chinese satellite project will monitor life in major cities

October 13, 2015 Victoria Zavyalova, RBTH

Dauria Aerospace, a Russian space technology company, plans to develop and launch 10 satellites to monitor life in some of the largest cities in the world, primarily those located on a new Silk Road. The Chinese investment fund, Cybernaut, will spend $70 million on the project.

The Chinese investment fund, Cybernaut, signed an agreement with the Russian space technology company, Dauria Aerospace, to invest $70 million to develop 10 satellites as part of the Urban Observer project to conduct daily imaging of the world's 100 largest cities with an accuracy of 0.7 meters per pixel. A joint venture will be created in Hong Kong.

The satellite imagery could be used for a new Silk Road – an international trade route that stretches from Shanghai and Beijing through Xinjiang to Kazakhstan, Pakistan, and Afghanistan, before finally snaking into Central and Western Europe.

"At the moment, it's not possible to closely monitor the main activities in these cities, which includes industrial, mining and transport infrastructure,'' said Sergey Ivanov, CEO and co-founder of Dauria Aerospace. "Urban Observer can play a vital role in the development of Chinese-Russian infrastructure projects.''

Satellites will monitor cities, forests, and farmland, and the resolution will be high enough to allow satellites to analyze traffic. Dauria is currently developing a high-resolution micro-satellite, Auriga, which will be launched in 2017. It will be a prototype for Auriga HD, which will form the Urban Observer group.

According to Alexey Belyakov, executive director of the space technologies and telecommunications cluster at the Skolkovo center that gave $5 million to the development of Dauria’s micro-satellite platform, the project will evaluate the development of the Silk Road's infrastructure. This includes the size of the populations, as well as the pace and quality of construction.

Belyakov said that Urban Observer will also allow Russia and China to enter the global market of satellite imagery. "While the main customers are in China, our satellites will cover the whole world,'' said Belyakov. "Currently, U.S. companies, such as Digital Globe, are the leaders in satellite imagery, but the market is growing. Recently, the U.S. Congress authorized commercial satellite imagery, and Russia also simplified access to information from satellites."

According to Belyakov, Urban Observer can help develop commercial products, including opportunities for energy companies and mobile apps developers.

In addition to private space projects, Russia and China are discussing cooperation on a lunar program, such as the establishment of a Chinese lunar rover. Russia’s deputy prime minister, Dmitry Rogozin, announced this on October 12 following talks with Chinese vice premier, Wang Yang.


Code:
- http://asia.rbth.com/science_and_tech/2015/10/13/70_mln_russian-chinese_satellite_project_will_monitor_life_i_50027.html)

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Dream team: Russia's GLONASS & China's BeiDou to make satnav system parts together
Published time: 12 Oct, 2015 11:45

China's BeiDou navigation satellite system, which reportedly boasts accuracy to the centimeter, and Russia's GLONASS, hailed as the only global rival to GPS, plan to join forces and build a production facility.
The news was broken by Deputy Prime Minister Dmitry Rogozin, who spoke in Harbin, the capital of the northeast Chinese province of Heilongjiang. He added that it is planned that the facility for production of receiver modules and chipsets will be based in Russia.

According to the Xinhua news agency, China began to build the BeiDou satellite navigation system in 1994, two decades after the US developed GPS. China is the third country to have an independent satellite navigation and positioning system, after the US and Russia.

BeiDou now has about 20 satellites that ensure positioning to an accuracy of 10 meters, which is set to get even better with the introduction of next generation satellites. With the help of ground-based facilities, the positioning precision of BeiDou is now accurate to the centimeter, according to Xinhua.

Yang Hui, Beidou’s chief designer, pledged in September that the next generation of the satellite navigation system will rival the next generation of GPS in terms of precision.

Moscow has been developing GLONASS since 1976, with full global coverage enabled in 1995. The system currently comprises nearly 30 satellites, including 24 operational spacecraft, three spares, and one platform in the flight-testing phase. There are 19 ground stations providing consumers with a navigation signal with an accuracy of one meter. Three stations are also located in the Antarctic and one in Brazil, with two more to be constructed in Kazakhstan and one in Belarus.

Russia is likely to sign a rocket engine delivery agreement with China in mid-December, during Russian Prime Minister Dmitry Medvedev’s visit to Beijing.

"We are talking about an agreement to deliver Russian rocket engines to China, as well as counter deliveries of Chinese microelectronics we need in spacecraft development," Deputy PM Rogozin told journalists.

China’s rapidly developing space program has recently raised the alarm for the US, with the Pentagon saying in a report to Congress earlier this year that Beijing's space activities allegedly consist of testing new anti-space technologies.

hile acquiring new space assets of its own, China is developing “a variety of capabilities designed to limit or prevent the use of space-based assets by adversaries during a crisis or conflict, including the development of directed-energy weapons and satellite jammers,” the report warned.

China has denied developing any counter-satellite technologies whatsoever.


Code:
https://www.rt.com/news/318359-glonass-beidou-navigation-satellite/
 
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