https://github.com/taroz/ge-gnss-visibility
GNSS satellite visibility simulation from Google Earth
https://github.com/taroz/ge-gnss-visibility
gnss googleearth
Last synced: 8 months ago
JSON representation
GNSS satellite visibility simulation from Google Earth
- Host: GitHub
- URL: https://github.com/taroz/ge-gnss-visibility
- Owner: taroz
- License: mit
- Created: 2024-07-12T08:21:40.000Z (about 2 years ago)
- Default Branch: main
- Last Pushed: 2025-03-24T14:05:24.000Z (over 1 year ago)
- Last Synced: 2025-05-05T09:04:14.147Z (over 1 year ago)
- Topics: gnss, googleearth
- Language: MATLAB
- Homepage:
- Size: 20.1 MB
- Stars: 126
- Watchers: 4
- Forks: 11
- Open Issues: 1
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
- awesome-gnss - ge-gnss-visibility - Generates virtual fisheye zenith images from Google Earth at arbitrary locations and automatically determines GNSS visibility (Uncategorized / Uncategorized)
README
# GNSS satellite visibility simulation from Google Earth
- This project generates virtual fisheye zenith images from Google Earth at arbitrary locations and automatically determines GNSS visibility
- This can be used to evaluate GNSS multipath in urban areas and as a reference for LOS/NLOS satellites
# Vehicle Driving Data
- Virtual fisheye video generated from GNSS data mounted on the vehicle included in the dataset
Virtual fisheye image
https://github.com/user-attachments/assets/2763cd03-9e3a-4305-b6f8-2b7850cdd04a
Virtual fisheye image with GNSS satellites
https://github.com/user-attachments/assets/844e4be2-c8af-4471-b917-f9183cc6178c
Virtual fisheye image with LOS/NLOS determination
https://github.com/user-attachments/assets/1669d099-7bd0-4dbc-af50-b5861e4ec837
# Requirements
- MATLAB (>R2022a)
- Image Processing Toolbox (for satellite_visibility_xxx.m)
- [Google Earth Pro](https://www.google.com/earth/about/versions/#earth-pro)
- [MatRTKLIB](https://github.com/taroz/MatRTKLIB)
# How to use
## Setup
- Install [Google Earth Pro](https://www.google.com/earth/about/versions/#earth-pro)
- Clone or download [MatRTKLIB](https://github.com/taroz/MatRTKLIB) and add to path in MATLAB
- Clone or download **ge-gnss-visibility**
## Fisheye Image Generation
### 1. Run `generate_kml_kinematic.m` or `generate_kml_static.m`
- `ge_fov160.kml` is generated
### 2. Open `ge_fov160.kml` in Google Earth Pro
- Check `Photorealistic` and `Terrain` in Layers
- **Note: To start Movie Maker, you must exit the tour mode. Please press the X button on the slider in the lower left to exit tour mode.**
### 3. Tools->Movie Maker
- Select tour `fisheye_fov160`
- Enter the name of the file to save to
- Video parameter: `Custom`
- Picture size: `1200 x 1200`
- Frames per second: `1.0`
- Output configuration
- For kinematic data: `MJPEG (.mov)`
- For static data: `JPEG image sequence (.jpg)`
### 4. Click `Create Movie`
- Usually this process takes quite a while!
- In my experience, running Google Earth in a Linux (Ubuntu) environment is much faster than running it in Windows
- On Windows, it is faster to use OpenGL instead of DirectX as the graphics mode for Google Earth
- The type of graphics card you have can also affect performance
### 5. Run `satellite_visibility_kinematic.m` or `satellite_visibility_static.m`
- Virtual fisheye image/movie is generated
# Citation
If you use this project in your research or paper, please cite the following article \[[link](https://github.com/taroz/Misc/blob/master/data/ge-gnss-visibility/IONPNT2015.pdf?raw=true)\].
```
@inproceedings{suzuki2015simulation,
title={Simulation of GNSS satellite availability in urban environments using Google Earth},
author={Suzuki, Taro and Kubo, Nobuaki},
booktitle={Proceedings of the ION 2015 Pacific PNT Meeting},
pages={1069--1079},
year={2015}
}
```