112 lines
3.3 KiB
C++
112 lines
3.3 KiB
C++
/*
|
|
* Copyright (C) 2014 Jared Boone, ShareBrained Technology, Inc.
|
|
* Copyright (C) 2016 Furrtek
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __ADSB_H__
|
|
#define __ADSB_H__
|
|
|
|
#include "adsb_frame.hpp"
|
|
#include "ui.hpp"
|
|
|
|
#include <cstring>
|
|
#include <string>
|
|
|
|
namespace adsb {
|
|
|
|
enum downlink_format {
|
|
DF_ADSB = 17,
|
|
DF_EHS_SQUAWK = 21
|
|
};
|
|
|
|
enum type_code {
|
|
TC_IDENT = 4,
|
|
TC_AIRBORNE_POS = 11,
|
|
TC_AIRBORNE_VELO = 19
|
|
};
|
|
|
|
enum data_selector {
|
|
BDS_ID = 0x20,
|
|
BDS_ID_MARKS = 0x21,
|
|
BDS_INTENT = 0x40,
|
|
BDS_HEADING = 0x60
|
|
};
|
|
|
|
struct adsb_pos {
|
|
bool valid;
|
|
float latitude;
|
|
float longitude;
|
|
int32_t altitude;
|
|
};
|
|
|
|
struct adsb_vel {
|
|
bool valid;
|
|
int32_t speed; //knot
|
|
uint16_t heading; //degree
|
|
int32_t v_rate; //ft/min
|
|
};
|
|
|
|
const float CPR_MAX_VALUE = 131072.0;
|
|
|
|
const float adsb_lat_lut[58] = {
|
|
10.47047130, 14.82817437, 18.18626357, 21.02939493,
|
|
23.54504487, 25.82924707, 27.93898710, 29.91135686,
|
|
31.77209708, 33.53993436, 35.22899598, 36.85025108,
|
|
38.41241892, 39.92256684, 41.38651832, 42.80914012,
|
|
44.19454951, 45.54626723, 46.86733252, 48.16039128,
|
|
49.42776439, 50.67150166, 51.89342469, 53.09516153,
|
|
54.27817472, 55.44378444, 56.59318756, 57.72747354,
|
|
58.84763776, 59.95459277, 61.04917774, 62.13216659,
|
|
63.20427479, 64.26616523, 65.31845310, 66.36171008,
|
|
67.39646774, 68.42322022, 69.44242631, 70.45451075,
|
|
71.45986473, 72.45884545, 73.45177442, 74.43893416,
|
|
75.42056257, 76.39684391, 77.36789461, 78.33374083,
|
|
79.29428225, 80.24923213, 81.19801349, 82.13956981,
|
|
83.07199445, 83.99173563, 84.89166191, 85.75541621,
|
|
86.53536998, 87.00000000
|
|
};
|
|
|
|
const float PI = 3.14159265358979323846;
|
|
|
|
const float NZ = 15.0;
|
|
|
|
void make_frame_adsb(ADSBFrame& frame, const uint32_t ICAO_address);
|
|
|
|
void encode_frame_id(ADSBFrame& frame, const uint32_t ICAO_address, const std::string& callsign);
|
|
std::string decode_frame_id(ADSBFrame& frame);
|
|
|
|
void encode_frame_pos(ADSBFrame& frame, const uint32_t ICAO_address, const int32_t altitude,
|
|
const float latitude, const float longitude, const uint32_t time_parity);
|
|
|
|
adsb_pos decode_frame_pos(ADSBFrame& frame_even, ADSBFrame& frame_odd);
|
|
|
|
void encode_frame_velo(ADSBFrame& frame, const uint32_t ICAO_address, const uint32_t speed,
|
|
const float angle, const int32_t v_rate);
|
|
|
|
adsb_vel decode_frame_velo(ADSBFrame& frame);
|
|
|
|
//void encode_frame_emergency(ADSBFrame& frame, const uint32_t ICAO_address, const uint8_t code);
|
|
|
|
void encode_frame_squawk(ADSBFrame& frame, const uint32_t squawk);
|
|
|
|
} /* namespace adsb */
|
|
|
|
#endif/*__ADSB_H__*/
|