-BNC allows to compare the contents of two files containing GNSS orbit and clock data in SP3 format. SP3 ASCII files basically contain a list of records over a certain period of time. Each record carries a time tag, the X,Y,Z position of the satellite's Center of Mass at that time and the corresponding satellite clock value. Both SP3 files may contain some records for different epochs. If so then BNC only compares records for identical epochs. BNC accepts that a specific GNSS system or a specific satellite is only available in one of the SP3 files. Note that BNC does not interpolate orbits when comparing SP3 files. -
--To compare satellite clocks provided by the two files BNC first converts coordinate differences dX,dY,dZ into along track, out-of-plane and radial compoments. It then corrects the clock differences for the radial components of the coordinate differences. RMS values of clock differences are finally calculated after introducing at first one offset 'per epoch for all satellites' plus a second offset 'per satellite for all epochs'. +BNC allows to compare the contents of two files containing GNSS orbit and clock data in SP3 format. SP3 ASCII files basically contain a list of records over a certain period of time. Each record carries a time tag, the X,Y,Z position of the satellite's Center of Mass at that time and the corresponding satellite clock value. Both SP3 files may contain some records for different epochs. If so then BNC only compares records for identical epochs. BNC accepts that a specific GNSS system or a specific satellite is only available from one of the SP3 files. Note that BNC does not interpolate orbits when comparing SP3 files. +
++To compare satellite clocks provided by the two files BNC first converts coordinate differences dX,dY,dZ into along track, out-of-plane and radial compoments. It then corrects the clock differences for the radial components of coordinate differences. RMS values of clock differences are finally calculated after introducing at first one offset 'per epoch for all satellites' and secondly one offset 'per satellite for all epochs'.
@@ -1250,31 +1250,6 @@
-Below you find an example for a SP3 Comparsion logfile. In its firt part it uses the following abbreviations:
-
| 'MJD' | Modified Julian Date |
| 'PRN' | Satellit specification |
| 'radial' | Radial component of orbit coordinate difference [m] |
| 'along' | Along track component of orbit coordinate difference [m] |
| 'out' | Out-of-plane component of orbit coordinate difference [m] |
| 'clk' | Clock difference [m] |
| 'clkRed' | Clock difference reduced by radial component of orbit coordinate difference [m] |
| 'iPRN' | BNC internal sequence number |
-The second part following string 'RMS' provides a summary of the comparison using the following abbreviations:
-
| 'PRN' | Satellite specification |
| 'radial' | RMS of radial component of orbit coordinate differences [m] |
| 'along' | RMS of along track component of orbit coordinate differences [m] |
| 'out' | RMS of out-of-plane component of orbit coordinate differences [m] |
| 'nOrb' | Number of epochs used in in orbit comparision |
| 'clk' | RMS of clock differences [m] |
| 'clkRed' | RMS of clock differences after reduction of radial orbit differences [m] |
| 'nClk' | Number of epochs use in clock comparisons |
| 'Offset' | Clock offset [m] |
@@ -1320,4 +1295,37 @@ ! Total 0.0262 0.0938 0.0492 5268 0.0620 0.0561 5268+
+The first part int this uses the following abbreviations: +
+ +| 'MJD' | Modified Julian Date |
| 'PRN' | Satellit specification |
| 'radial' | Radial component of orbit coordinate difference [m] |
| 'along' | Along track component of orbit coordinate difference [m] |
| 'out' | Out-of-plane component of orbit coordinate difference [m] |
| 'clk' | Clock difference [m] |
| 'clkRed' | Clock difference reduced by radial component of orbit coordinate difference [m] |
| 'iPRN' | BNC internal sequence number |
+The second part following string 'RMS' provides a summary of the comparison using the following abbreviations:
+
| 'PRN' | Satellite specification |
| 'radial' | RMS of radial component of orbit coordinate differences [m] |
| 'along' | RMS of along track component of orbit coordinate differences [m] |
| 'out' | RMS of out-of-plane component of orbit coordinate differences [m] |
| 'nOrb' | Number of epochs used in in orbit comparision |
| 'clk' | RMS of clock differences [m] |
| 'clkRed' | RMS of clock differences after reduction of radial orbit differences [m] |
| 'nClk' | Number of epochs use in clock comparisons |
| 'Offset' | Clock offset [m] |
Figure 14: BNC configuration example for comparing two SP3 files with satellite orbit and clock data.
@@ -1650,5 +1658,5 @@
Figure 14: Synchronized BNC output via IP port to feed a GNSS real-time engine.
+Figure 15: Synchronized BNC output via IP port to feed a GNSS real-time engine.
@@ -1692,5 +1700,5 @@
Figure 15: Flowcharts, BNC forwarding a stream to a serial connected receiver; sending NMEA sentences is mandatory for VRS streams.
+Figure 16: Flowcharts, BNC forwarding a stream to a serial connected receiver; sending NMEA sentences is mandatory for VRS streams.
@@ -1699,5 +1707,5 @@
Figure 16: BNC pulling a VRS stream to feed a serial connected RTK rover.
+Figure 17: BNC pulling a VRS stream to feed a serial connected RTK rover.
@@ -1851,5 +1859,5 @@
Figure 17: RTCM message numbers, latencies and observation types.
+Figure 18: RTCM message numbers, latencies and observation types.
@@ -1947,8 +1955,8 @@
Figure 18: Precise Point Positioning with BNC, PPP Panel 1.
+Figure 19: Precise Point Positioning with BNC, PPP Panel 1.
Figure 19: Precise Point Positioning with BNC, PPP Panel 2.
+Figure 20: Precise Point Positioning with BNC, PPP Panel 2.
@@ -2246,8 +2254,8 @@
Figure 20: BNC in 'Quick-Start' mode (PPP, Panel 1)
+Figure 21: BNC in 'Quick-Start' mode (PPP, Panel 1)
Figure 21: BNC in 'Quick-Start' mode (PPP, Panel 2)
+Figure 22: BNC in 'Quick-Start' mode (PPP, Panel 2)
3.13.7.8 Maximal Solution Gap - optional if Quick-Start is set
Figure 22: Track of positions from BNC with Google Maps in the background.
+Figure 23: Track of positions from BNC with Google Maps in the background.
@@ -2442,11 +2450,11 @@
Figure 23: BNC combining Broadcast Correction streams.
+Figure 24: BNC combining Broadcast Correction streams.
Figure 24: BNC uploading the combined Broadcast Corrections stream.
+Figure 25: BNC uploading the combined Broadcast Corrections stream.
Figure 25: 'INTERNAL' PPP with BNC using combined Broadcast Corrections stream.
+Figure 26: 'INTERNAL' PPP with BNC using combined Broadcast Corrections stream.
3.13.1.2 Method - mandatory if 'Combine Corrections' table is populated
Figure 26: Producing Broadcast Corrections from incoming precise orbits and clocks and uploading them to an NTRIP Broadcaster.
+Figure 27: Producing Broadcast Corrections from incoming precise orbits and clocks and uploading them to an NTRIP Broadcaster.
@@ -2880,5 +2888,5 @@
Figure 27: Producing a Broadcast Ephemeris stream from navigation messages of globally distributed RTCM streams and uploading them in RTCM Version 3 format to an NTRIP Broadcaster.
+Figure 28: Producing a Broadcast Ephemeris stream from navigation messages of globally distributed RTCM streams and uploading them in RTCM Version 3 format to an NTRIP Broadcaster.
@@ -2947,5 +2955,5 @@
Figure 28: Bandwidth consumption of incoming streams.
+Figure 29: Bandwidth consumption of incoming streams.
@@ -2955,5 +2963,5 @@
Figure 29: Latency of incoming streams.
+Figure 30: Latency of incoming streams.
@@ -2963,5 +2971,5 @@
Figure 30: Time series plot of PPP session.
+Figure 31: Time series plot of PPP session.
@@ -2971,5 +2979,5 @@
Figure 31: Steam input communication links.
+Figure 32: Steam input communication links.
@@ -2996,5 +3004,5 @@
Figure 32: Casters table.
+Figure 33: Casters table.
3.19.1.1.3 User and Password - mandatory for protected streams
Figure 33: Broadcaster source-table.
+Figure 34: Broadcaster source-table.
3.19.1.1.5 NTRIP Version - mandatory
Figure 34: Stream distribution map derived from NTRIP Broadcaster source-table.
+Figure 35: Stream distribution map derived from NTRIP Broadcaster source-table.
3.19.1.2 Add Stream - Coming from TCP/IP Port
Figure 35: BNC setup for pulling a stream via serial port.
+Figure 36: BNC setup for pulling a stream via serial port.