Novatel OM-20000041 用户手册

D

Logs summary

MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1

183

This log contains the last valid position, expressed in Cartesian x-y-z space coordinates, relative to the center of
the Earth. The positions expressed in this log are always relative to 

WGS84,

 regardless of the setting of the 

DATUM

or 

USERDATUM

 command. See Figure D-2, Page 185 for a definition of the coordinates.

1

This log provides differential fix and lag status.

$PXYA,713,488150.00,-1634756.995,-3664965.028,4942151.391,2.335,3.464,
4.156,0,2,0.4*08[CR][LF]

 

$PXYA

week

seconds

x

y

z

x std

y std

z std

sol status

fix status

diff lag

*xx

[CR][LF]

1

$PXYA

Log header

$PXYA

2

week

GPS week number

713

3

seconds

GPS seconds into the week

488150.00

4

x

Position x coordinate, in meters

-1634756.995

5

y

Position y coordinate, in meters

-3664965.028

6

z

Position z coordinate, in meters

4942151.391

7

x std

Standard deviation of x, in meters

2.335

8

y std

Standard deviation of y, in meters

3.464

9

z std

Standard deviation of z, in meters

4.156

10

sol status

Solution status as listed in Table D-1

0

11

fix status

0 =

fix not available or invalid

1 =

Single point stand-alone fix

2 =

Differential fix 

2

12

diff lag

1

 

Age of differential correction (seconds) (= 0 if fix status 

≠

 2)

0.4

13

*xx

Checksum

*08

14

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Sentence terminator

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