C-Nav3050 User Guide

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C-Nav3050 User Guide | Manualzz

C-Nav3050 User Guide

NMEAPNCTMDE (ASCII)

This output stream reports the Marginally Detectable Error (MDE) generated by the receiver as part of the self-monitoring duties performed to support Receiver

Autonomous Integrity Monitoring (RAIM). It is a C-Nav proprietary NMEA type message, and it conforms to the header, checksum and electrical characteristics of a standard NMEA string, but is not recognized by the NMEA governing body as an officially sanctioned message.

Output

Format:

$PNCTMDE,time,svid,Type,bias,mde,laterr,longerr,alterr,*checksum

F5

F6

F7

F8

F9

Field#

F1

F2

F3

F4

Field

Name

Description

time svid

Type

UTC time for position fix in hours, minutes, seconds

(hhmmss.ss) (000000.00 to 235959.99)

The GNSS svid

Measurement type: 0 = CA, 1 = P1, 2 = L1, 3 = P2, 4 =

L2, 5 = RC Code, 6 = RC PHASE bias mde laterr longerr alterr

Standardized bias which is noncentrality parameter for w-test

MDE in meters

Expected error in latitude (meters)

Expected error in longitude (meters)

Expected error in altitude (meters)

Checksum

Table 58: PNCTMDE Message Output Format

Example:

$PNCTMDE,165535.00,,,,,,,*6A

Revision

10

Page 143 of 186 6/8/2015

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