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osqzss / gps-sdr-sim

Software-Defined GPS Signal Simulator
MIT License
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Regarding the gpssim.bin file #233

Open komalkumar6655 opened 4 years ago

komalkumar6655 commented 4 years ago

Hello, I have generated the gpssim.bin file like ./gps-sdr-sim -b 8 -e brdc3540.14n -l 30.286502,120.032669,100 -s 4000000 but when this file is given to the gnss sdr software it doesnot show the navigation plot. like below please give me a solution for this. %%%%%%%%%% **============================================================= | Channel | PRN | Frequency | Doppler | Code Offset | Status | ============================================================= | 1 | 17 | 2.59399e+02 | 259 | 3690 | T | | 2 | 10 | 2.80762e+03 | 2808 | 3240 | T | | 3 | 6 | 5.34058e+02 | 534 | 1324 | T | | 4 | 20 | 2.80762e+03 | 2808 | 2181 | T | | 5 | 28 | 2.88391e+03 | 2884 | 454 | T | | 6 | 3 | 3.08228e+03 | 3082 | 474 | T | | 7 | 2 | 1.81580e+03 | 1816 | 2608 | T | | 8 | 23 | 1.08337e+03 | 1083 | 3352 | T | =============================================================*

Tracking started at 29-Jan-2020 13:31:02 Tracking is over (elapsed time 00:04:05) Saving Acq & Tracking results to file "trackingResults.mat" Calculating navigation solutions... Could not find valid preambles in channel 1! Could not find valid preambles in channel 2! Could not find valid preambles in channel 3! Could not find valid preambles in channel 4! Could not find valid preambles in channel 5! Could not find valid preambles in channel 6! Could not find valid preambles in channel 7! Could not find valid preambles in channel 8! Too few satellites with ephemeris data for postion calculations. Exiting! Processing is complete for this data block Ploting results... plotNavigation: No navigation data to plot. Post processing of the signal is over.**

rishucoding commented 3 years ago

Hello komal,

Were you able to solve this issue? Please share the steps if you found any resolve.

Thanks, Rishabh Jain