D Logs summary
200 MiLLennium GP SCard Software Version 4.50 Command Descriptions Manual Rev 1
4ADR (Accumulated Doppler Range) is calculated as follows:
ADR_ROLLS = ( -RGED_PSR / WAVELENGTH - RGED_ADR) / MAX_VALUE
Round to the closest integer
IF (ADR_ROLLS -0.5)
ADR_ROLLS = ADR_ROLLS - 0.5
ELSE ADR_ROLLS = ADR_ROLLS + 0.5
At this point integerise ADR_ROLLS
CORRECTED_ADR = RGED_ADR + (MAX_VALUE * ADR_ROLLS)
where:
ADR has units of cycles
WAVELENGTH = 0.1902936727984 for L1
WAVELENGTH = 0.2442102134246 for L2
MAX_VALUE = 8388608
5
6Only bits 0 - 23 are represented in the RGED log
Code RGED
00.000 to 0.050
10.051 to 0.075
20.076 to 0.113
30.114 to 0.169
40.170 to 0.253
50.254 to 0.380
60.381 to 0.570
70.571 to 0.854
80.855 to 1.281
91.282 to 2.375
10 2.376 to 4.750
11 4.751 to 9.500
12 9.501 to 19.000
13 19.001 to 38.000
14 38.001 to 76.000
15 76.001 to 152.000