/* ---------------------------------------------------------------------- */
/* SidescanDefs.h */
/* ---------------------------------------------------------------------- */
/* */
/* (c) Copyright 1999 EdgeTech, */
/* */
/* This file contains proprietary information, and trade secrets of */
/* EdgeTech, and may not be disclosed or reproduced without the prior */
/* written consent of EdgeTech. */
/* */
/* EdgeTech is not responsible for the consequences of the use or misuse */
/* of this software, even if they result from defects in it. */
/* */
/* ---------------------------------------------------------------------- */
/* */
/* EdgeTech sidescan data format description. */
/* */
/* ---------------------------------------------------------------------- */
#ifndef __SIDESCANDEFS_H__
#define __SIDESCANDEFS_H__
/* ---------------------------------------------------------------------- */
/* includes */
/* ---------------------------------------------------------------------- */
#include "SegyDefs.h"
/* ---------------------------------------------------------------------- */
/* Each record of data has a 80 byte header. The content of which is */
/* defined below. */
/* */
/* Unused fields should be set to 0 */
/* ---------------------------------------------------------------------- */
typedef struct
{
/* 0 - 1 : Subsystem (0 .. n) */
unsigned short int subsystem;
/* 2 - 3 : Channel Number (0 .. n) */
unsigned short int channelNum;
/* 4 - 7 : Ping number (increments with ping) */
unsigned long int pingNum;
/* 8 - 9 : Packet number (1..n) Each ping starts with packet 1 */
unsigned short int packetNum;
/* 10 - 11 : TriggerSource (0 = internal, 1 = external) */
unsigned short int trigSource;
/* 12 - 15 : Samples in this packet */
unsigned long int samples;
/* 16 - 19 : Sample interval in ns of stored data */
unsigned long int sampleInterval;
/* 20 - 23 : starting Depth (window offset) in samples */
unsigned long int startDepth;
/* 24 - 25 : -- defined as 2 -N volts for lsb */
short int weightingFactor;
/* 26 - 27 : Gain factor of ADC */
unsigned short int ADCGain;
/* 28 - 29 : Maximum absolute value for ADC samples for this packet */
unsigned short int ADCMax;
/* 30 - 31 : Range Setting (meters X 10) */
unsigned short int rangeSetting;
/* 32 - 33 : Unique pulse identifier */
unsigned short int pulseID;
/* 34 - 35 : Mark Number (0 = no mark) */
unsigned short int markNumber;
/* 36 - 37 : Data format */
/* 0 = 1 short per sample - envelope data */
/* 1 = 2 shorts per sample - stored as real(1), imag(1), */
/* 2 = 1 short per sample - before matched filter (raw) */
/* 3 = 1 short per sample - real part analytic signal */
/* NOTE: For type = 1, the total number of bytes of data to follow is */
/* 4 * samples. For all other types the total bytes is 2 * samples. */
unsigned short int dataFormat;
/* 38 - 39 : Reserved field to round up to a 32-bit word boundary */
unsigned short int reserved;
/* -------------------------------------------------------------------- */
/* computer date / time data acquired */
/* -------------------------------------------------------------------- */
/* 40 - 43 : Millieconds today */
unsigned long int millisecondsToday;
/* 44 - 45 : Year */
short int year;
/* 46 - 47 : Day of year (1 - 366) */
unsigned short int day;
/* 48 - 49 : Hour of day (0 - 23) */
unsigned short int hour;
/* 50 - 51 : Minute (0 - 59) */
unsigned short int minute;
/* 52 - 53 : Second (0 - 59) */
unsigned short int second;
/* -------------------------------------------------------------------- */
/* Auxillary sensor information */
/* -------------------------------------------------------------------- */
/* 54 - 55 : Compass heading (minutes) */
short int heading;
/* 56 - 57 : Pitch (minutes) */
short int pitch;
/* 58 - 59 : Roll (minutes) */
short int roll;
/* 60 - 61 : Heave (centimeters) */
short int heave;
/* 62 - 63 : Yaw (minutes) */
short int yaw;
/* 64 - 67 : Vehicle depth (centimeters) */
unsigned long int depth;
/* 68 - 69 : Temperature (degrees Celsius X 10) */
short int temperature;
/* 70 - 79 : Reserved for future use */
char reserved2[10];
/* -------------------------------------------------------------------- */
/* Data area begins here */
/* -------------------------------------------------------------------- */
/* Data begins at byte 80. */
/* short int data[]; */
/* -------------------------------------------------------------------- */
} SidescanHeaderType;
/* ---------------------------------------------------------------------- */
#endif /* end Not __SIDESCANDEFS_H__ */