PERFORMANCE COMPARISON OF RFI MITIGATION WITH MODIFIED SPECTROGRAM ANALYSIS IN FMCW RADAR INDERA-MX4
Penulis/Author
OKTANTO DEDI WINARKO (1); Prof. Dr. Ir. Risanuri Hidayat, M.Sc., IPM. (2); Prof. Ir. Hanung Adi Nugroho, S.T., M.Eng., Ph.D., IPM., SMIEEE. (3)
Tanggal/Date
2017
Kata Kunci/Keyword
Abstrak/Abstract
Radio Frequency Interference (RFI) is a serious problem in every sensing device application. This is because RFI can contaminates receive signal thereby reducing reading sensitivity of the receive signal. RFI source increases with accretion of application and kinds of telecommunication that use any frequency spectrum in their perform. There are several different RFI mitigation has been developed to reduce or even remove RFI signal in last decade. In this paper, we do comparison of methods performance in removing RFI from receive signal radar FMCW with our modified spectrogram analysis, called as range fft spectrogram analysis. Mitigation methods that is compared such as time-analysis, spectrogram analysis, statistical-test and wavelet denoising. The methods above is applied to a FMCW radar signal receive data to measure the performance of each method to detect and remove RFI signal. From the test result, we conclude that range fft spectrogram analysis is the best method to detect total RFI whereas statistical analysis is able to detect more sweep contains RFI signal in FMCW radar radiometric. But in case of time efficiency, wavelet transform has the shortest run time simulation spent.
