Novatel OM-20000041 Benutzerhandbuch

D

Logs summary

176

 MiLLennium GPSCard Software Version 4.50 Command Descriptions Manual Rev 1

These logs are meant to be used in conjunction with the 

POSAVE

 command. If the 

POSAVE

 command has not been

issued, all fields in the 

PAVA

/

B

 logs except week and seconds will be zero. However, when position averaging is

underway, the various fields contain the parameters being used in the position averaging process. The log trigger

ONCHANGED

 is recommended, but 

ONTIME

 can also be used.

See the description of the 

POSAVE

 command, Page 109.

See also Section A.3.2 Pseudorange Algorithms, Page 67.

All quantities are referenced to the WGS84 ellipsoid, regardless of the use of the 

DATUM

 or 

USERDATUM

 

commands, except for the height parameter (field 6). The relation between the geoid and the WGS84 
ellipsoid is the geoidal undulation, and can be obtained from the 

POSA

/

B

 logs.

$PAVA,846,145872.00,51.11381167,-114.04356455,1068.100,26.2,12.1,54.9,7,1*0C [CR][LF]

$PAVA

week

seconds

lat

lng

hgt

sdlat

sdlng

sdhgt

time

samples

*xx

[CR][LF]

1

$PAVA

Log header

$PAVA

2

week

GPS week number

846

3

seconds

GPS seconds into the week

145872.00

4

lat

Average WGS84 latitude (degrees)

51.11381167

5

lng

Average WGS84 longitude (degrees)

-114.04356455

6

hgt

Average height above sea level, or geoid (m)

1068.100

7

sdlat

Estimated standard deviation of the average latitude (m)

26.2

8

sdlng

Estimated standard deviation of the average longitude (m)

12.1

9

sdhgt

Estimated standard deviation of the average height (m)

54.9

10

time

Elapsed time of averaging (s)

7

11

samples

Number of samples in the average

1

12

*xx

Checksum

*0C

13

[CR][LF]

Sentence terminator

[CR][LF]