How to make sense of latitude, longitude reading?

[vinay r]

Hi everyone,
Can anyone provide me good links where i can learn to implement gps. I searched in google a lot but didnt find anything. I need info on stuff like how to interpret the latitude, longitude, heading, readings and use it to tell the UAV go to assigned waypoint.

[Mike Bakula]

Here is a good introduction for GPS from u-blox;

http://geology.isu.edu/geostac/Field_Exercise/GPS/GPS_basics_u_blox...

GPS only provides time and position information. Choosing courses, selecting headings, and monitoring progress on a course is the essence of navigation. The canonical source for that is Nathaniel Bowditch's "The American Practical Navigator". Here's a link to the 2002 edition. (caution, 35 Mb .pdf file!) Chapter 7 and chapter 21 have the formulas you need.

http://www.nga.mil/MSISiteContent/StaticFiles/NAV_PUBS/APN/pub9.zip

[vinay r]

Thank you Mike, that was what i needed.

[Ryan Beall]

just keep googleing....never give up... its a long road

try these first....
great route circle distance equation
initial heading calculator

http://www.ee.byu.edu/faculty/beard/papers/preprints/NelsonBarberMc...
is a pretty good end result