Spatial Reference Manual
Page 134 of 158
Version 4.4
04/06/2019
13.9.37
External Pitot Pressure Packet
This packet is no longer supported. The External Air Data packet #68 should be used.
13.9.38
Wind Packet
This packet provides Spatial's current 2D wind velocity. These values are only valid
when external air data is provided to Spatial. This can be either through the External
Pitot Pressure Packet, the External Air Data Packet or when a pitot tube is interfaced to
one of the GPIO pins. When this packet is written to the device, it disables the wind
estimation filter and the wind values provided are used statically.
Wind Packet
Packet ID
57
Length
12
Field
#
Bytes
Offset
Data
Type
Size
Description
1
0
fp32
4
Wind velocity north (m/s)
2
4
fp32
4
Wind velocity east (m/s)
3
8
fp32
4
Wind velocity standard deviation (m/s)
Table 81: Wind packet
13.9.39
Heave Packet
Heave Packet
Packet ID
58
Length
16
Field
#
Bytes
Offset
Data
Type
Size
Description
1
0
fp32
4
Heave point 1 (m)
2
4
fp32
4
Heave point 2 (m)
3
8
fp32
4
Heave point 3 (m)
4
12
fp32
4
Heave point 4 (m)
Table 82: Heave packet
13.9.40
Post Processing Packet
This packet is no longer supported. If you need an IMR file please contact Advanced
Navigation support for required settings.
