mirror of https://github.com/gnss-sdr/gnss-sdr
92 lines
2.9 KiB
Markdown
92 lines
2.9 KiB
Markdown
<!-- prettier-ignore-start -->
|
|
[comment]: # (
|
|
SPDX-License-Identifier: BSD-3-Clause
|
|
)
|
|
|
|
[comment]: # (
|
|
SPDX-FileCopyrightText: 2021 Carles Fernandez-Prades <carles.fernandez@cttc.es>
|
|
)
|
|
<!-- prettier-ignore-end -->
|
|
|
|
# nav_msg_listener
|
|
|
|
Simple application that retrieves decoded navigation messages produced by
|
|
GNSS-SDR and prints them in a terminal. This is only for demonstration purposes,
|
|
as a example on how to retrieve data using the `nav_message.proto` file.
|
|
|
|
# Build the software
|
|
|
|
This software requires [Boost](https://www.boost.org/) and
|
|
[Protocol Buffers](https://developers.google.com/protocol-buffers).
|
|
|
|
In a terminal, type:
|
|
|
|
```
|
|
$ mkdir build && cd build
|
|
$ cmake ..
|
|
$ make
|
|
```
|
|
|
|
## Usage
|
|
|
|
In order to tell GNSS-SDR to generate those messages, you need to include the
|
|
lines:
|
|
|
|
```
|
|
NavDataMonitor.enable_monitor=true
|
|
NavDataMonitor.client_addresses=127.0.0.1 ; destination IP
|
|
NavDataMonitor.port=1237 ; destination port
|
|
```
|
|
|
|
in your gnss-sdr configuration file. You can specify multiple destination
|
|
addresses, separated by underscores:
|
|
|
|
```
|
|
NavDataMonitor.client_addresses=79.154.253.31_79.154.253.32
|
|
```
|
|
|
|
Run gnss-sdr with your configuration, and at the same time, from the computer of
|
|
the client address (or another terminal from the same computer that is executing
|
|
gnss-sdr if you are using `127.0.0.1`), execute the binary as:
|
|
|
|
```
|
|
$ ./nav_msg_listener 1237
|
|
```
|
|
|
|
where `1237` needs to be the same port as in `NavDataMonitor.port`. As soon as
|
|
gnss-sdr starts to decode navigation messages, you will see them in your
|
|
terminal:
|
|
|
|
```
|
|
$ ./nav_msg_listener 1237
|
|
|
|
New Data received:
|
|
System: E
|
|
Signal: 1B
|
|
PRN: 11
|
|
TOW of last symbol [ms]: 75869044
|
|
Nav message: 000000001001010101010101010101010101010101010101010101010101010101010101010101010101010101010101010011100101110001000000
|
|
|
|
New Data received:
|
|
System: G
|
|
Signal: 1C
|
|
PRN: 16
|
|
TOW of last symbol [ms]: 75870000
|
|
Nav message: 100010111010101010101000101111000110001011001010010100011100010001000000000000000000000011010100000000101101100001000011000000000000000000000000111111101000010000110110011011000100000101111100000111100110110101000100110100100010011011101001001010011001011111111110000110000000000000000000000010001100
|
|
|
|
New Data received:
|
|
System: E
|
|
Signal: 5X
|
|
PRN: 18
|
|
TOW of last symbol [ms]: 75870260
|
|
Nav message: 0000100001111110010000010111110100011010010000100000000000000000000000000000000000000000000000000000000010101010000001001011010010100100100100100110101110110101010000100000000000000000111001011100010010100001010100001110101001001101111000000000
|
|
|
|
New Data received:
|
|
System: G
|
|
Signal: L5
|
|
PRN: 6
|
|
TOW of last symbol [ms]: 75871320
|
|
Nav message: 100010110001100011110001100010110010100111100001110100001000000110110101100101011100110111001101100001011001110110010100101110001000000010000000100000001000000010000000100000001000000010000000100000001000000010000000100000001000000010000000100000001000000010000000100000001000001010101010111110000000
|
|
|
|
```
|