FGI's GNSS Spoofing Dataset Repository (FGI-SpoofRepo)

This repository houses a new collection of raw In-phase and Quadrature (I/Q) data comprising live recordings of GPS L1 C/A, Galileo E1, GPS L5, and Galileo E5a signals. These datasets cover three distinct types of spoofing characteristics (synchronous, asynchronous, and meaconing), making them valuable examples for testing the effectiveness of various anti-spoofing techniques, whether for detection or mitigation purposes. The inclusion of live signals in multiple GNSS frequencies and the presence of cryptographic signatures in Galileo E1 signal make these datasets potential benchmarks for assessing the resilience performance of multi-frequency multi-constellation receivers. The true receiver is stationary in all four scenarios. Its position estimated by a geodetic-grade receiver is 60.182°N, 24.828°E with an altitude of 47.248 m.

The repository contains several folders, each of which represents a different scenario. The main folder "FGI-SpoofRepo" following sub-folders:

- TG_SFMC (Targeted Single Frequency Multi Constellation)
- TG_DFMC (Targeted Dual Frequency Multi Constellation)
- UT_DFMC (Untargeted Dual Frequency Multi Constellation)
- Meaconing_DFMC (Meaconing Dual Frequency Multi Constellation)
- Example_scripts (Example scripts to replay the datasets)

Summary of spoofing datasets can be found below:

Name Duration (s) Spoofing Signal(s)
Targeted SFMC 370 L1, E1
Targeted DFMC 370 L1, E1, L5, E5a
Untargeted DFMC 370 L1, E1, L5, E5a
Meaconing DFMC 470 L1, E1, L5, E5a

RF Recording Device: The raw I/Q data samples are captured using the stereo dual-band GNSS front-end
developed by Nottingham Scientific Limited (NSL). RF recording configuration of the front-end can be found below:

Parameters Frequency Bands (L1/E1) Frequency Bands (L5/E5a)
Center frequency (MHz) 1569.03 1176.45
Sampling rate (MHz) 26 26
Data type Real Complex
Sample bit width 8 bit (I) 8 bit + 8 bit (I + Q)
Bandwidth (MHz) 4.2 10.09

本仓库收录了一套全新的同相正交（In-phase and Quadrature, I/Q）原始数据集，包含全球定位系统（Global Positioning System, GPS）L1 C/A、伽利略（Galileo）E1、GPS L5及伽利略（Galileo）E5a信号的实况录制数据。该数据集涵盖三类典型欺骗特性：同步欺骗、异步欺骗与转发式欺骗，可为各类抗欺骗技术（包括欺骗检测与欺骗缓解）的有效性测试提供极具价值的测试样本。

由于该数据集包含多频全球导航卫星系统（Global Navigation Satellite System, GNSS）实况信号，且伽利略E1信号带有加密签名，因此可作为评估多频多星座接收机抗欺骗性能的基准测试集。所有四类测试场景中的真实参考接收机均处于静止状态，经大地测量级接收机测算，其位置为北纬60.182°、东经24.828°，海拔高度47.248米。

本仓库包含多个文件夹，每个文件夹对应一种不同的测试场景。主文件夹"FGI-SpoofRepo"包含以下子文件夹：
- TG_SFMC（目标单频多星座）
- TG_DFMC（目标双频多星座）
- UT_DFMC（非目标双频多星座）
- Meaconing_DFMC（转发式欺骗双频多星座）
- Example_scripts（数据集回放示例脚本）

欺骗数据集汇总如下：
| 数据集名称 | 时长(s) | 欺骗信号 |
|---------------------|---------|------------------------|
| Targeted SFMC | 370 | L1、E1 |
| Targeted DFMC | 370 | L1、E1、L5、E5a |
| Untargeted DFMC | 370 | L1、E1、L5、E5a |
| Meaconing DFMC | 470 | L1、E1、L5、E5a |

射频录制设备：原始I/Q数据样本由诺丁汉科学有限公司（Nottingham Scientific Limited, NSL）开发的立体声双频GNSS前端采集。该前端的射频录制配置参数如下：
| 参数项 | L1/E1频段 | L5/E5a频段 |
|-----------------------|-------------------------|-----------------------------|
| 中心频率(MHz) | 1569.03 | 1176.45 |
| 采样率(MHz) | 26 | 26 |
| 数据类型 | 复数据类型 | 复数据类型 |
| 采样位宽 | 8位（仅同相分量I） | 8位同相分量I + 8位正交分量Q |
| 带宽(MHz) | 4.2 | 10.09 |