Differences

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--- code:emulator [2010/02/11 16:20] – newacct
+++ code:emulator [2021/03/04 14:52] (current) – [C code to simulate NMEA output from a GPS in real time - with live Google Earth Display] rocketboy
@@ Line 2: / Line 2: @@
 The code here performs the following:
-**GPSgen.c** - converts source balloon track KML files into a GPS NEMA logs (i.e. files containing $GPGGA messages etc.)
+**GPSgen.c** - converts source balloon track KML files into GPS NEMA logs (i.e. files containing $GPGGA messages etc.)
 **emulate.c** - outputs a GPS log to the PC serial port - pacing the output to simulate real time gps output - at the same time //emulate// creates a real-time KML file so you can see where the payload is currently flying using Google Earth.
 **outer.kml** is a kml shell that is configured to initiate the real-time display of the kml file generated by emulate (open //outer.kml// file from Google Earth to initiate the real-time display).
 Together these programs allow real time testing of payloads with a GPS simulation - as if the payload was flying through the coordinates in the source KML. This allows cut-down algorithms etc. to be checked.  The source KML can be from a previous balloon flight - the output of a balloon trajectory forecast - or can be hand crafted to test something specific.
+Some test NMEA files can be found [[code:NMEA|here]]
 The screenshot below shows the emulation of the Pegasus 1 flight running in the top left DOS window, the generated NMEA in the bottom left DOS window against a background of a Google Earth real-time display of the flight.