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hirokawa / cssrlib

Python Toolkit for satellite-based open PPP/PPP-RTK services
MIT License
119 stars 38 forks source link

some questons about the cssrlib data #58

Open wuzhiyuan1 opened 2 months ago

wuzhiyuan1 commented 2 months ago

Dear cssrlib author, when I am learning to use your excellent open source cssrlib software, I have some questions about the data set in it. What is the format of the B2b and HAS data in the data set and how is it generated? I look forward to your patient answers. Thank you again for the learning software crsslib, which has benefited me a lot.

hirokawa commented 2 months ago

The data is hex dump of correction message from B2b or E6b. For the decoder, it is available on cssrlib-data/receiver supporting Septentrio or Javad receiver.

wuzhiyuan1 commented 2 months ago

Got it. Thanks for your patience.

wuzhiyuan1 commented 3 weeks ago

1730020556199 Hello cssrlib author, I used the Python script you provided to convert the data collected by the Septentrio receiver into a file with a message length (124) that is much longer than the length of the data you provided (64). May I ask why this is happening? Do I need to change any settings in the Python script

hirokawa commented 2 weeks ago

some existing data is collected by Javad receiver, it has a shorter length. The newer Septentrio decoder outputs the longer dataset, but, the last part is the error correction part, it should not affect decoding and processing. If you found some issue on decoding or processing, please let me know.