BS ISO 18197:2015 pdf free.Space systems一Space based services requirements for centimetre class positioning.
BS ISO 18197 defines the requirements for the wide area centimetre class positioning system by broadcasting augmentation data through satellites as follows.
— Centimetre class positioning
According to the progress of requirements for positioning services such as automatic farming, mapping and others, centimetre class positioning is very useful.
— Wide area positioning
It is quite effective to broadcast augmentation data through satellites for users over wide area such as a square, more than 1,000 km each side, anytime and anywhere. Even if this area is short of data network, additional ground network facilities are not needed. In addition, as ranging signal and augmentation data can be received from satellite broadcasting at the same time, it is unnecessary for user terminals to receive the signal such as transmitted by ground network.
— Real-time property
The user terminals need to resolve the ambiguity in real-time, using augmentation data broadcast from satellites or other means, for the realization of centimetre class positioning. On the other hand, the provider sides have to broadcast augmentation data such that the terminal sides are able to resolve the ambiguity in real-time.
2 Normative references
No normative references cited in this document.
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
fixing determining the integer number of carrier phase waves when calculating the position by use of carrier phase measurement
Note Ito entry: This should be distinguished from the case of determining the desired value by convergence of continuous quantities when calculating the position by use of pseudorange measurement.
3.2 sustainability measurement anomaly at some reference point should make no influence on the augmentation data generation
4 Abbreviated terms
BDS BeiDou Navigation Satellite System
CEP Circular Error Probable
DOP Dilution of Precision
ECEF Earth-Centred Earth-Fixed
ECI Earth-Centred Inertial
GEO Geostationary Earth Orbit
GLONASS Global Navigation Satellite System
GNSS Global Navigation Satellite System
GPS Global Positioning System
IGSO Inclined Geosynchronous Satellite Orbit
IOD Issue Of Data
IRNSS Indian Regional Navigational Satellite System
ITRF International Terrestrial Reference Frame
ITS Intelligent Transportation System
LEO Low Earth Orbit
MEO Medium Earth Orbit
NED North East Down
NRTK Network Real-Time Kinematics
RTK Real-Time Kinematics
QZS Quasi-Zenith Satellite
QZSS Quasi-Zenith Satellite System
5 Positioning augmentation system overview
5.1 System configuration
Figure 1 shows the typical view of positioning augmentation system of centimetre class. Here, this International Standard does not deal with the ranging signal broadcast from GNSS.BS ISO 18197 pdf free download.
Tags: Space systems
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