Reson SeaBat 8160, Руководство оператора

Страница: 92 / 129

INTERFACE SPECIFICATIONS
SeaBat 8160
Operator‟s Manual
Page 82 October 6, 2011
Version 5
C.3.6 Bathymetric Data
There are two different bathymetric data formats: R and RI Theta. The two
formats are described in structures. The data types that are used are defined as
follows and are Big Endian.
Table 25: Bathymetric Data Types
DATA TYPE BYTES
Char 1
Short 2
Long 4
C.3.6.1 Time Stamp
The DATA_TIME Struct are used for time stamping:
struct DATA_TIME
{
unsigned long Seconds; //Seconds since 00:00:00, 1 January 1970
unsigned long Millisecs; //Milliseconds, LSB = 1ms
};
The time in the DATA_TIME Struct is based on UTC message from GPS passed
through the DAC System to the processor.
C.3.6.2 Sonar Latency
The drawing below shows the ping timing sequence. It illustrates the sonar
processor
‟s three-ping latency.
Figure 29: Sonar Latency Drawing