Reson SeaBat 8160, Руководство оператора

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INTERFACE SPECIFICATIONS
SeaBat 8160
Operator‟s Manual
Page 84 October 6, 2011
Version 5
unsigned char quality[cnt]; //packed quality array (two 4 bit values/char)
//cnt = n/2 if beam count even, n/2 +1 if odd.
//cnt then rounded up to next even number
//e.g. if beam count = 101, cnt = 52
//unused trailing quality values set to zero
//bit 0
– brightness test (0 = failed, 1 = passed)
//bit1
– colinearity test (0 = failed, 1 = passed)
//bit2
– amplitude bottom detect used
//bit3
– phase bottom detect used
//bytes are populated in high order nibble first
//with the higher 4 bits for the first sounding and
//the lower 4 bits for the second sounding
//bottom detect can be amplitude, phase or both
unsigned short checksum; //checksum for data packet
};
C.3.8 RI Theta Packets
C.3.8.1 Packet Type 0x18
struct RI_THETA_DATA
{
char synch_header[4]; // synch header {0xff, 0xff, 0x00, 0x00}
char packet_type; //identifier for packet type (0x18)
char packet_subtype; //identifier for packet subtype
unsigned short latency; //time from ping to output (milliseconds)
DATA_TIME data_time; //time of ping for data packet (0 if no UTC input)
unsigned long ping_number; //sequential ping number from sonar startup/reset
unsigned long sonar_id //least significant four bytes of Ethernet address
unsigned short sonar_model //coded model number of sonar
unsigned short frequency //sonar frequency in kHz
unsigned short velocity; //programmed sound velocity (LSB = 1m/sec)
unsigned short sample_rate; //A/D sample rate (samples per second)
unsigned short ping_rate; //ping rate (pings per second *1000)
unsigned short range set; //range setting for SeaBat (meters)
unsigned short power; //power setting for SeaBat
unsigned short gain; //gain setting for SeaBat
//bits
0-6 gain (1 - 45)
//bit 14 (0 = fixed, 1 = tvg)
//bit 15 (0 = manual, 1 = auto)
unsigned short pulse_width; //transmit pulse width (microseconds)
unsigned char tvg_spread; //spreading coefficient for tvg * 4
//valid values = 0 to 240 (0.0 to 60.0 in 0.25
//steps)
unsigned char tvg_absorp; //absorption coefficient for tvg
unsigned char projector_type; //bits 0-4 = projector type
//bit 7 = pitch steering (1 = enabled, 0 = disabled)
unsigned char projector_beam_width //along track transmit beam width (degrees * 10)
unsigned short beam_spacing_num; //receive beam angular spacing numerator
unsigned short beam_spacing_denom; //cross track receive beam angular spacing
//denominator
//beam width degrees = numerator / denominator
short projector_angle; //projector pitch steering angle (degrees * 100)