slide1 l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Real-time Format Issues Mark Caissy – Natural Resources Canada presented at the International GNSS Service Workshop M PowerPoint Presentation
Download Presentation
Real-time Format Issues Mark Caissy – Natural Resources Canada presented at the International GNSS Service Workshop M

Loading in 2 Seconds...

play fullscreen
1 / 11

Real-time Format Issues Mark Caissy – Natural Resources Canada presented at the International GNSS Service Workshop M - PowerPoint PPT Presentation


  • 185 Views
  • Uploaded on

Real-time Format Issues Mark Caissy – Natural Resources Canada presented at the International GNSS Service Workshop Miami, June 6 th 2008. Outline. Current issue What are our choices A Case for RTCM Recommendations. Current Issue. Streaming formats are required for: Real-time data

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Real-time Format Issues Mark Caissy – Natural Resources Canada presented at the International GNSS Service Workshop M' - carolena


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
slide1

Real-time Format IssuesMark Caissy –Natural Resources Canadapresented at theInternational GNSS Service WorkshopMiami, June 6th 2008

outline
Outline
  • Current issue
  • What are our choices
  • A Case for RTCM
  • Recommendations
current issue
Current Issue
  • Streaming formats are required for:
    • Real-time data
    • Real-time orbits / clocks / biases / iono / topo / etc?
  • No streaming format available and in use today meets the essential needs of the RT-IGS community
what choices are there
What Choices Are There?
  • SOC format (used in RTIGS streams)
    • GPS only and extending is not being considered
  • BINEX (GPS) format supported by RTIGS
    • Proposed extensions to GNSS look promising
    • Acceptance by manufactures is an unknown
  • RTCM format (used in NTRIP streams)
    • Covers data, orbits and clocks
    • Most promising from the standpoint of acceptance by manufactures
    • Versions 2 and 3 lack certain essential features
how are we going to solve this issue
How Are We Going To Solve This Issue
  • RTPP Key Activity
    • Investigate standards and formats for real-time data collection, data dissemination and delivery of derived products
how are we going to solve this issue6
How Are We Going To Solve This Issue
  • Show document in preparation
a case for rtcm 1 2
A Case for RTCM (1/2)
  • Manufactures develop their proprietary formats in order to give themselves what they perceive to be a competitive edge
    • likely to increase with new signals and constellations
    • there is evidence of a decreased willingness to disclose this information
a case for rtcm 2 2
A Case for RTCM (2/2)
  • RTCM SC-104 is the common playing field where manufacturers discuss and make decisions on topics that are impacting the RT-IGS
    • Most notable are discussions and decisions that have resulted in RTCM version 2 and 3 formats
  • RTCM is now discussing formats for state space representation of orbit and clock corrections for use in applications including PPP
how should igs proceed
How Should IGS Proceed
  • Define clear and definitive requirements for formats
    • In the areas of real-time GNSS data and correction information ( orbits, clocks, biases, etc )
  • Make these requirements known to the RTCM community
    • We must influence the decision making process in the area of streaming GNSS data and state space correction information
recommendations
Recommendations
  • (RTPP-01) IGS – become a member of RTCM SC 104
  • (RTPP-02) That RINEX 3.0 be used to define RTIGS requirements for streamed data content and observation resolution
  • (RTPP-03) That SP3c and Clock RINEX be used to define RTIGS requirements for streamed content and resolution for state space orbits and clocks
recommendations11
Recommendations
  • (RTPP-04) Process to adopt in the development of RT product formats and protocols for the RT Pilot Project:
    • Both NTRIP and UDPRelay will support dissemination of the Pilot Project Real Time products
    • The Pilot Project Analysis and RT-Data Centre participants will initiate a requirements definition phase for formats of all Real Time products that are within the scope of the Pilot Project. The RT-Data Centre participants will also cover the perspective of the User Community.
    • A prototype format for orbits and clocks will be developed and hosted by the RT Data Centers. The timescale for this will be compatible with the schedule for the availability of the products (by January 2009 for individual ACs and March 2009 for the combination product).
    • Participants in the RT Pilot Project will take an active role in the definition of final formats to support IGS requirements for all RT products, placing emphasis on influencing the evolution of existing international standards and in particular RTCM.