china aerospace science & technology corporation...

China Aerospace Science & Technology Corporation (CASC)

航天系统发展研究中心Aerospace System Development Research Center

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Outline


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（1）Mission of CASC

The new-generation rockets are emerging

according to the guideline of generalization,

seriation and modularization. The developing

series cover large、middle and small rockets,

including CZ5,CZ6, CZ7 which is a new-

generation liquid rocket, and CZ11 which is a

solid rocket.

Make into space much easier

The number of launch for Changzheng-series

rockets breaks through 200. The success rate

of the first 100 times is 93%. The success

rate of the later 100 times exceeds 98%。


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Extend space activities to much deeper out space

The cosmic space is the future of humanity. Every

development of space activities concerns our

future.

CE-3 reentry vehicles flyby Translunar Libration Point

Spaced-Images of Toutatis taken by CE-2



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Construct a national complete space infrastructure system

The number and performance of on-orbit spacecrafts are

continuously upgrading. A complete, continuous and long-term

stable space-ground integrated network is under construction,

which includes telecommunication satellite systems, BeiDou

navigation satellite system and earth observation satellites. BeiDou navigation satellite system

Telecommunication satellite system

Images of high-resolution

satellites



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Help more countries to realize their space dreams

Rising scene of the rocket boarding

Vesselsat - 2 of Luxemburg

Signing with White Russia



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（2）Future requirements

Low costHigh efficient use of on-orbit resources

sustainable development

Service to societydirectly


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（3）Development of space technology

The gradual maturity of rendezvous & docking technology

Fast development of micro/nanotechnology

The continuous improvement of carrying capabilities of rockets


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A networked virtual system composes large

numbers of low-cost, micro-/nano satellites,

which cooperatively conducts earth

observation, emergency communication and

navigation in LEO.

（4）Concept of next-generation satellites

Suitable for multi-task Autonomous Networked virtual large system Integrated GEO satellite

Networded system of micro-

satellite clusters

An integrated modularization satellite, which

is reusable through on-orbit reconfiguration

and services, operates in GEO performing

communication locally and earth observation

by multiple means.

large reusable integrated satellite

“small”and“plenty” “large”and“reusable”


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Outline


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（1）System concept


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（2）Technological characteristics

Each micro-/nano- satellite only needs to carry ONE unique-

function and light-weight payload.

Multi-satellite networked system acts like an autonomous “swarm”.

Autonomous navigation and positioning inner “swarm”.

Intelligent perception, orbit maneuver and anti collision.

Intelligent signal processing and share of resources.

Multiple swarms contribute to a constellation on LEO.


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（2）Technological characteristics

Stable and trusty communication links inner and between “swarms”

supporting collaborative processing.

According to specifical application, each “swarm” can be tens to

hundreds of scale, and the networked “swarms” operated on multiple

orbits for global coverage can reach hundreds to thousands of scale.

Utilizing the capacities of observation, computation and storage from

multiple points, it achieves more efficiency and stronger viability.

Low cost and rapid update of technology.


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（3）Application areas

Disaster prevention and reduction

• Comprehensive data acquisition capability

• Real-time data transmission and emergency communication

• Highly-effective data processing and analysis

• comprehensive application for disaster reduction service


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（4）Key technology

Design of Ad hoc network for satellite cluster.

Autonomous navigation and positioning in clusters.

Maintenance of swarm shape and intelligent anti-collision design.

Algorithms of virtual observation signal/information processing.

On-orbit management and reconfiguration in clusters.

Mission plan and management of multiple clusters in space.


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Outline


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（1）System concept

“one core module”+ “multiple replaceable payloads”


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（2）Technology characteristic

“one core module”+ “multiple replaceable payloads”：Payloads' are set

on demand based on the corn module.

Modularization: “corn module” is made of modularized space crafts which

can plug and play.

On-orbit construction: based on an open variable structure, it can be built

up step by step through several launches.

On-orbit reconfiguration: change or supply.

Comprehensive application: multiple payloads apply simultaneously.


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On-orbit update： module upgrade to maintain the advancement of

tech state.

Sufficient usage of orbit resources and multiple payloads resources

Low cost due to allowance for multiple launches

Long lifetime due to reusing modularized spacecraft and continual

power supply by adding fuel

Highly precision control

（2）Technology characteristic


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（3）Application areas

Disaster monitoring and management

Large capacity communication


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（4）Key technology

Design of modularized spacecraft

Design of extended structure in space

Autonomous construction on orbit

Network communication and navigation supporting on-orbit

construction

Resource share and reconfiguration of spacecrafts

Dynamic and control of variable-structure in space


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Outline


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Low-cost, high efficient, green, service to society and supporting

the sustainable development of economics are new requirements

of future space technology.

The trend of next-generation satellites will be the networked

system of micro-/nano- satellites clusters and large reusable

integrated satellite, which will play an important role in disaster

prevention and reduction.

We look forward to an extensive and worldwide cooperation.

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