From 9e5c45123c8a9c78842ff3fc6237ab8ce04b07ec Mon Sep 17 00:00:00 2001 From: Matija Nalis Date: Fri, 9 Jan 2015 03:42:52 +0100 Subject: [PATCH] TODO --- TODO.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) create mode 100644 TODO.txt diff --git a/TODO.txt b/TODO.txt new file mode 100644 index 0000000..cd4dd77 --- /dev/null +++ b/TODO.txt @@ -0,0 +1,17 @@ +- finish parsing 50bps data (to look for Ephemeris data) + +- why does 50BPS data (both in raw GSD4t data from strace.log, and more + importantly from Samsung-generated SLCLog.gp2 MID 08) seems broken most of + the time (TLM is invalid, parity does not verify etc)? + +- if we had ephemeris (either from 50BPS data, or downloaded from Internet + AGPS way), what else would we need to calculate satellite pseudorange? + The time of transmission? Find where that can be acquired from (first from + raw GPS communication - 50BPS data or something else?), and then try to find + it SLCLog.gp2 and finally in raw GSD4t datastream. + +- when we have calculated SV pseudoranges, we can proceed to trilaterate our + position in ECEF, and from there convert to WGS84 lat/lon/height coordinates. + +- find what other unknown bits mean and if they can be used for better + precision, faster fix etc.