GPS-SDR-SIM

.gitignore

@@ -39,8 +39,155 @@ gps-sdr-sim-lut
 # Temporary files
 *.swp
 
+*~
+<<<<<<< HEAD
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+share/python-wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+MANIFEST
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
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+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.nox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+*.py,cover
+.hypothesis/
+.pytest_cache/
+cover/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
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+# IPython
+profile_default/
+ipython_config.py
+
+# pyenv
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+#   intended to run in multiple environments; otherwise, check them in:
+# .python-version
+
+# pipenv
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+# PEP 582; used by e.g. github.com/David-OConnor/pyflow
+__pypackages__/
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+# Celery stuff
+celerybeat-schedule
+celerybeat.pid
+
+# SageMath parsed files
+*.sage.py
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+# Environments
+.env
+.venv
+env/
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+ENV/
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+.pyre/
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+# Cython debug symbols
+cython_debug/
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+
 # Netbeans project folder
 nbproject/*
 
 # Last used USER_MOTION_SIZE variable
 .user-motion-size
+=======
+
+# Python bytecodes
+*.pyc
+>>>>>>> 33aa99cdff44ab8f8ced315ff0b7ea047ef92403

Makefile

@@ -5,11 +5,12 @@ all: gps-sdr-sim
 
 SHELL=/bin/bash
 CC=gcc
+LDFLAGS=-lm -lpthread
 CFLAGS=-O3 -Wall -D_FILE_OFFSET_BITS=64
 ifdef USER_MOTION_SIZE
 CFLAGS+=-DUSER_MOTION_SIZE=$(USER_MOTION_SIZE)
 endif
-LDFLAGS=-lm
+
 
 gps-sdr-sim: gpssim.o
 	${CC} $< ${LDFLAGS} -o $@

README.md

@@ -1,23 +1,47 @@
-# GPS-SDR-SIM
+# GPS-SDR-SIM realtime
 
 GPS-SDR-SIM generates GPS baseband signal data streams, which can be converted 
 to RF using software-defined radio (SDR) platforms, such as 
 [ADALM-Pluto](https://wiki.analog.com/university/tools/pluto), [bladeRF](http://nuand.com/), [HackRF](https://github.com/mossmann/hackrf/wiki), and [USRP](http://www.ettus.com/).
 
-### Windows build instructions
 
-1. Start Visual Studio.
-2. Create an empty project for a console application.
-3. On the Solution Explorer at right, add "gpssim.c" and "getopt.c" to the Souce Files folder.
-4. Select "Release" in Solution Configurations drop-down list.
-5. Build the solution.
+### Building with make
 
-### Building with GCC
+```
+$ make
+```
+
+
+### Realtime by Gnuradio
+
+Use -n option can connect to a TCP source in Gnuradio for realtime simulation.
+
+The tcp source should be set in "Server" mode.
+
+See tcp.grc as an example.
+
+### Map
+
+Run gps-sdr-sim with -w option, and 
+
+cd into /mapserver, and run
 
 ```
-$ gcc gpssim.c -lm -O3 -o gps-sdr-sim
+python mapper.py
 ```
 
+Then visit http://127.0.0.1:8080/static/baidumap.html to use the Online map.
+
+Or visit http://127.0.0.1:8080/static/googlemap.html to use the google Online map.
+
+You can also write an map which can POST data to http://127.0.0.1:8080/post like this
+
+```
+lon=116&lat=39&hgt=10
+```
+
+
+
 ### Using bigger user motion files
 
 In order to use user motion files with more than 30000 samples (at 10Hz), the `USER_MOTION_SIZE`
@@ -34,6 +58,7 @@ This variable can also be set when compiling directly with GCC:
 $ gcc gpssim.c -lm -O3 -o gps-sdr-sim -DUSER_MOTION_SIZE=4000
 ```
 
+
 ### Generating the GPS signal file
 
 A user-defined trajectory can be specified in either a CSV file, which contains 
@@ -86,6 +111,8 @@ Options:
   -b <iq_bits>     I/Q data format [1/8/16] (default: 16)
   -i               Disable ionospheric delay for spacecraft scenario
   -v               Show details about simulated channels
+  -n <port>        Use TCP connection to Gnuradio TCP-Source for realtime simulation.
+  -w <port>        Connect with map server(/mapserver/mapper.py) by UDP (default port 5678).
 ```
 
 The user motion can be specified in either dynamic or static mode:
@@ -102,6 +129,12 @@ The user motion can be specified in either dynamic or static mode:
 > gps-sdr-sim -e brdc3540.14n -l 30.286502,120.032669,100
 ```
 
+Use Gnuradio to realtime simulate 3000s:
+
+```
+> gps-sdr-sim -e brdc3540.14n -l 30.286502,120.032669,100 -n 1234 -d 3000
+```
+
 ### Transmitting the samples
 
 The TX port of a particular SDR platform is connected to the GPS receiver