Question

Hello everyone!

My name is Marten Vohrmann,i am a student of Electrical Engineering at the University of Paderborn.

Our aim is to develop a Software-GPS which is based on the GNU-Radio Framework. Unfortunately the project is stuck, because we need to convert our raw-data into the RINEX-Format for further work on positioning software.

Our recorded data is of type complex (C++), does GPStk offer any kind of converting function, which converts our complex-data-stream into RINEX-Format. I've already looked through the Doxygen-doku, without luck.

I am looking forward hearing from you.

Have a nice weekend!

-- MartenVohrmann - 26 Jan 2008

Answer

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I'm assuming by a complex type you mean the samples have yet to be translated into pseudorange/phase measurements that would be suitable for storage in a RINEX file? We have some code that does a software receiver tracking and signal simulation. It is located in the apps/swrx directory. Take a look in there and see if that is what you were looking for.

-- RickMach - 28 Jan 2008

Thanks for answering my question so qickly! We are operating with the Ettus Board and this device delivers us a file or data stream, which only contains the raw data that comes out of the ADC of the device. For futher work we need to transform these data into a correct format. So is there any kind of code that converts our really raw-data into RINEX format ?

-- MartenVohrmann - 30 Jan 2008

I would say it is unlikely we have exactly what you need. However the code in the swrx directory should be a good start at that. We have used it with our own custom hardware to demodulate the C/A code data into pseudoarange/phase and navigation data.

-- RickMach - 31 Jan 2008