forked from flightaware/dump1090
-
Notifications
You must be signed in to change notification settings - Fork 1
/
stats.h
153 lines (131 loc) · 5.66 KB
/
stats.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
// Part of dump1090, a Mode S message decoder for RTLSDR devices.
//
// stats.h: statistics structures and prototypes.
//
// Copyright (c) 2015 Oliver Jowett <oliver@mutability.co.uk>
// Copyright (c) 2021 FlightAware LLC
//
// This file is free software: you may copy, redistribute and/or modify it
// under the terms of the GNU General Public License as published by the
// Free Software Foundation, either version 2 of the License, or (at your
// option) any later version.
//
// This file 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. If not, see <http://www.gnu.org/licenses/>.
// This file incorporates work covered by the following copyright and
// permission notice:
//
// Copyright (C) 2012 by Salvatore Sanfilippo <antirez@gmail.com>
//
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef DUMP1090_STATS_H
#define DUMP1090_STATS_H
struct stats {
uint64_t start;
uint64_t end;
// Mode S demodulator counts:
uint32_t demod_preambles;
uint32_t demod_rejected_bad;
uint32_t demod_rejected_unknown_icao;
uint32_t demod_accepted[MODES_MAX_BITERRORS+1];
// Mode A/C demodulator counts:
uint32_t demod_modeac;
uint64_t samples_processed;
uint64_t samples_dropped;
// SDR settings:
int sdr_gain; // current gain step in use
// timing:
struct timespec demod_cpu;
struct timespec reader_cpu;
struct timespec background_cpu;
// noise floor:
double noise_power_sum;
uint64_t noise_power_count;
// mean signal power:
double signal_power_sum;
uint64_t signal_power_count;
// peak signal power seen
double peak_signal_power;
// number of signals with power > -3dBFS
uint32_t strong_signal_count;
// remote messages:
uint32_t remote_received_modeac;
uint32_t remote_received_modes;
uint32_t remote_rejected_bad;
uint32_t remote_rejected_unknown_icao;
uint32_t remote_accepted[MODES_MAX_BITERRORS+1];
// total messages:
uint32_t messages_total;
// .. divided by DF
uint32_t messages_by_df[32];
// CPR decoding:
unsigned int cpr_surface;
unsigned int cpr_airborne;
unsigned int cpr_global_ok;
unsigned int cpr_global_bad;
unsigned int cpr_global_skipped;
unsigned int cpr_global_range_checks;
unsigned int cpr_global_speed_checks;
unsigned int cpr_local_ok;
unsigned int cpr_local_skipped;
unsigned int cpr_local_range_checks;
unsigned int cpr_local_speed_checks;
unsigned int cpr_local_aircraft_relative;
unsigned int cpr_local_receiver_relative;
unsigned int cpr_filtered;
// number of altitude messages ignored because
// we had a recent DF17/18 altitude
unsigned int suppressed_altitude_messages;
// aircraft:
// total "new" aircraft (i.e. not seen in the last 30 or 300s)
unsigned int unique_aircraft;
// we saw only a single message
unsigned int single_message_aircraft;
// we never considered the track reliable
unsigned int unreliable_aircraft;
// range histogram
#define RANGE_BUCKET_COUNT 76
uint32_t range_histogram[RANGE_BUCKET_COUNT];
// adaptive gain measurements
#define STATS_GAIN_COUNT 64
bool adaptive_valid; // is the following data valid?
uint32_t adaptive_gain_seconds[STATS_GAIN_COUNT]; // Seconds spent at each gain step
uint32_t adaptive_loud_undecoded; // Total number of loud, undecoded bursts
uint32_t adaptive_loud_decoded; // Total number of loud, decoded messages
uint32_t adaptive_gain_changes; // Total number of gain changes caused by adaptive gain control
double adaptive_noise_dbfs; // Current adaptive-dynamic-range smoothed noise measurement, dBFS
int adaptive_range_gain_limit; // Current adaptive-dynamic-range gain step limit
};
void add_stats(const struct stats *st1, const struct stats *st2, struct stats *target);
void display_stats(struct stats *st);
void reset_stats(struct stats *st);
void add_timespecs(const struct timespec *x, const struct timespec *y, struct timespec *z);
#endif