[time-nuts] Thunderbolt code phase measurement
Mark Sims
holrum at hotmail.com
Wed May 16 00:27:38 UTC 2018
The Trimble Thunderbolt has a message (0x5A) that outputs raw receiver measurement data. One value is "code phase" (along with PRN, sample length, sig level, dopple, and time-of-measurement). This is a single precision floating point number in units of 1/16 of a chip. Does anybody know how to massage this value into either a carrier phase (in cycles) or a pseudorange (in meters). The reported code phase values tend to be in the 1000 ... 10000 range.
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