S-Space College of Engineering/Engineering Practice School (공과대학/대학원) Dept. of Mechanical Aerospace Engineering (기계항공공학부) Others_기계항공공학부
MATLAB SIMULINK를 이용한 위성항법 전파간섭 신호 시뮬레이터 설계
Design of GNSS Interference Simulator using MATLAB SIMULINK
- 양정환; 강창호; 김선영; 박찬국
- Issue Date
- 2012년 한국위성항법시스템학회 정기학술대회, 제주, 2012. 11. 8~9., pp. 109-110
- Ground Based Augmentation System (GBAS) is an enabling technology for GNSS based precision approach. However, GBAS is vulnerable to radio frequency interference, so GNSS interference detection and mitigation is essential for safe aircraft operation based on GBAS. In this paper, a GNSS interference simulator is designed based on previously developed GPS L1 software simulator. The interference simulator can generate user specified interferences repeatedly, so it can be used for interference signal characterization and detection algorithm research. The simulator gets signal parameters from a user and generates GPS L1 signal, noise and interference signals. The generated signals are processed by band pass filter, AGC, and ADC module and saved in a binary file. The simulator can generate single-tone continuous wave interference, swept continuous wave interference and band limited white Gaussian noise. The simulated signal data was verified by theoretical evaluation of signal spectrum and used for interference effect assessment and interference detection and mitigation algorithm research. This simulation environment allows rapid modification and tuning of parameters during algorithm development.
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