Dr. Jun Shen ([email protected]) Deputy Director， International Cooperation Center China Satellite Navigation Office The 56th Meeting of the Civil GPS Service Interface Committee at the ION GNSS+ 2016 Conference September 12-13, 2016 Portland, Oregon, USA ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA 01 03 02 Development Near-term Plan Plan Latest Progress ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA 01 03 02 Development Objectives Development Recent Basic Principles Plan Plan Development Steps SystemLatest Components Progress Fundamental Policies ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA BDS is committed: To provide continuous, stable and reliable positioning, navigation and timing services to global users; To meet the requirements derived from national security, economic and social development sectors, to accelerate IT applications and the transformation of economic development methods, and to improve both economic and social benefits; To serve the world and benefit the mankind through joint efforts with other navigation satellite systems across the globe. ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA Openness Independency BDS will offer open Develop and operate the services free of charge for BeiDou system independently. global users. Basic Principles Compatibility Gradualness BDS is devoted to pursue The establishment of BDS follows compatibility and interoperability a stepwise manner in the light of with other navigation satellite Chinese actual technical and systems, and enable users to economic conditions. obtain better services. ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA • BDS has been developing • in line with the three-step roadmap • the thinking of from regional to global, and from active to passive • forms a development path as world-oriented, region- highlighted, with its unique features. The 3rd step: The 1st step: 2013~2020, provide global passive services 1994~2000, provide regional active services 第一步 第二步 第三步 The 2nd step: 2004~2012, provide regional passive services ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA BDS is comprised of three major components: space segment, ground control segment and user segment. space • 5 GEO satellites segment • 3 IGSO satellites BDS is able to provide • 27 MEO satellites four types of services, namely, open, • Master Control Stations (MCS) authorized, wide area ground • Uplink Stations (US) differential and short segment • Monitoring Stations (MS) message services. • BDS terminals The positioning • Terminals compatible with other accuracy is better than GNSS 10 meters, the timing user accuracy is better than segment 20 nanoseconds, and the velocity accuracy is better than 0.2 meters per second. ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA • Provide open services free of charge for users. • Maintain and enhance the system, and improve service performance continuously, and offer services with higher quality. • Release open service performance specifications and related system documents on schedule, bring the function of government and market to full play, promote innovation, popularization and internationalization of BDS/GNSS applications, and lay foundation for the national strategic emerging industries. • Adhere to the concept of development and win-win cooperation, realize compatibility and interoperability between BDS and other GNSS, give the system efficiency into full play and increase users’ benefits. ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA 01 03 02 System Construction Development Near-term Plan Application PromotionPlan International Cooperation Latest Progress ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA • Since its formal regional services provision on December 27 2012, BDS has been maintaining continuous and stable operation, and the performance has been steadily improved. • The performance meets the specification, while the positioning accuracy is much better than 10m in some of the coverage area. B1I Horizontal Positioning Accuracy B1I Vertical Accuracy ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA • Since 2015, five new-generation BDS satellites and two in-orbit spare satellites have been successfully launched. • The advanced signal structure, inter-satellite link, on-board clocks with higher accuracy and other key system components and technical issues have been verified. • After the intra-system technical state is coordinated, five new-generation BDS satellites will provide services in a timely manner. • The new satellites will also further enhance the solidity of the BDS constellation, improve the ability of system services, and establish a solid foundation for the future global services. ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA • After two IGSO satellites were successfully launched recently, in the BDS coverage area, • the average PDOP（95 percent）decreases from 3.07 to 2.84 • the average minimum number of visible satellites increases from 7.0 to 8.3 ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA BDS - Design & Development Plan BDS Augmentation System Architecture ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA BDS Ground-Based Augmentation System • Accelerate the construction of the National BeiDou Ground-Based Augmentation System （BDGBAS）， and create a high-accuracy location platform with special application services. • A nation-wide reference station network has been built, and the construction of the basic system has been preliminarily completed. • The system performance is being tested, including meter and decimeter level for wide- area real-time services, centimeter level for the areas within Beijing, millimeter level for post- processing services. ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA National Ground-Based Augmentation System • When the system is operational, it will provide meter and decimeter level real-time location services for users in China, even centimeter level service in some areas. • BDS-based high-precision applications, such as the lane- level vehicle navigation service, could be realized. ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA National Ground-Based Augmentation System – System Architecture BDGBAS BeiDou Reference Stations User Terminals Raw data from Satellite Observation Data Processing System Data Broadcasting System High-precision Data Product Mobile Satellite Digital Radio ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA BDGBAS – System Components • Navigation 150 national wide-area reference Satellite BDS GPS GLONASS stations (RSs), 1200 regional RSs ① Reference Wide Area RSs Regional RSs • National BeiDou Data Integrated Stations Processing System, Data Backup System, ② Regional Data 6 kinds of Industrial Data Processing Communication Processing System Network System Systems Surve Weath Transpo Data Processing ④ ③ y er r-tation Subsystem Infor- Industrial National Basic • Mobile Seismologica Lan Data Distribution mation 3 broadcasting paths: Data CAS Data support l d Subsystem Security Processin Processin platform BDS Performance Monitor Operating Monitoring System Communication, Satellite Broadcasting, g System g System & Evaluation System Subsystem Digital Radio Positioning Service • 4 kinds of high-precision positioning Operating Platform services: wide-area real-time meter level ⑤Data Satellite Mobile Broadcastin Digital Radio Broadcasting Communication and decimeter level, regional real-time g System RT m level service RT dm service RT cm service Post mm service centimeter level, post-processing ⑥User millimeter level Terminals ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA Main Specifications of BDGBAS Satellite System BDS BDS BDS BDS/GP/GLONASS BDS/GPS Wide-area real- Wide-area real- Wide-area real- Augmentation time single- time single- time dual- Local-area real-time Post-processing Mode frequency pseudo frequency carrier frequency carrier RTK millimeter mode range mode phase mode phase mode Horizontal Meter level Meter level Decimeter lever Centimeter level Millimeter level Position (95%) (95%) (95%) (RMS) (RMS) Accuracy Vertical Meter level (95%) Meter level (95%) Decimeter lever Centimeter level Millimeter level Position (95%) (RMS) (RMS) Accuracy Broadcasting Synthetic correction Data of Precise orbit, Clock bias, Ionosphere Post processing Data data Broadcasting Mobile Satellite，Digital Radio, Mobile Communication Internet Mode Communication ION GNSS+ 2016 China Satellite Navigation Office September 12-16, 2106, Portland, Oregon, USA Main Services of BDGBAS Satellite System BDS BDS BDS BDS/GP/GLONASS BDS/GPS User Number Unlimited 106 Unlimited Service Area Depending on the coverage area of the chosen broadcasting mode Applications of Deformation Service Target People，Vehicles，Objects Centimeter level monitoring Hand-held Application Smart phone, wearable Devices, navigation