Results show that MUSIC and EV methods have similar results for time delay estimation, and perform better than the FFT method.
📌 3 Key Takeaways
🎯
Objective & Hypothesis:In-band interference increases the noise floor of delay profiles estimated from frequency modulated continuous wave (FMCW) sounder channel data and prevents weak multipath components from being detected.
📊
Key Findings & Data:In this study two of the subspace methods named MUltiple SIgnal Classification (MUSIC) and EigenVector (EV) algorithm were used to reduce the effect of interference in delay profiles obtained from an FMCW channel data, and the results are compared with those from conventional FFT method.
💡
Conclusion & Impact:Results show that MUSIC and EV methods have similar results for time delay estimation, and perform better than the FFT method.
🔬Design:Research Article
📍Scope:Comprehensive Sample
⚙️Variables:In-band interference · RF interference · Music
Abstract
In-band interference increases the noise floor of delay profiles estimated from frequency modulated continuous wave (FMCW) sounder channel data and prevents weak multipath components from being detected. In this study two of the subspace methods named MUltiple SIgnal Classification (MUSIC) and EigenVector (EV) algorithm were used to reduce the effect of interference in delay profiles obtained from an FMCW channel data, and the results are compared with those from conventional FFT method. Results show that MUSIC and EV methods have similar results for time delay estimation, and perform better than the FFT method.
ERCAN, S. Ü., GÖKALP, H. (2016). Reduction of In-Band Interferences’ Effect Using Subspace Algorithms in Radio Channel Data. International Journal of Applied Mathematics Electronics and Computers, Special Issue (2016), 30–32. https://ajindex.com/articles/258147
Goppelt M., Blöcher H.-L., Menzel W. Automotive Radar-Investigation of Mutual Interference Mechanisms, Advances in Radio Science, Volume 8, 2010, 2010, pp.55-60
Tullsson B. E. Topics in FMWC Radar Disturbance Suppression, IET Conference Publications, 1997
Salous S., Gokalp H. Medium And Large Scale Characterization Of UMTS Allocated Frequency Division Duplex Channels, IEEE Transactions on Vehicular Technology, 56, 5, 2007, pp. 2831-2843
Brooker G. M., Mutual Interference of Millimeter Wave Radar Systems, IEEE Transactions on Electromagnetic Compatibility, 49, 1, 2007, pp.170-181
Schipper T., Harter M., Zwirello L., Mahler T., Zwick T., Systematic approach To Investigate and Counteract Interference-Effects in Automatiive Radars, 9th European Radar Conference (EuRAD), 2012
Gokalp H., Taflan G.Y., Salous S. In-Band Interference Reduction in FMCW Channel Data Using Prony Modelling, IET Electronic Letters, 45, 2, 2009, pp. 132-133
Gokalp H., Taflan G.Y., Ustun S.,Min-norm Method for Estimating Delay and Doppler Profiles from FMCW Channel Data With In-band Interference, IET Electronic Letters, 40, 11, 2010, pp. 799-800
Jinyou Qu, Xun Li, Yijun Wen, A New Method for Weak Signals DOA Estimation in the presence of Strong Interferences”, 2012 IEEE 11th International Conference on Signal Processing, 2012, pp. 320-323, [9] Al-Azzo M. F., Al- Sabaawi K. High Resolution Techniques for Direction of Arrival Estimation of Ultrasonic Waves, American Journal of Signal Processing, 2014, pp. 49-59
Schmidt R. O., “A Signal Subspace Approach to Multiple Emitter Location and Spectral Estimation”, PhD thesis, Stanford University, Stanford, CA, 1981
Youn Y. W., Yi S. H., Hwang D. H., Sun J. H., Kang D. S., Kim Y. H., “MUSIC-based diagnosis algorithm for identifying broken rotor bar faults in induction motors using flux signal”, Journal of Electrical Engineering & Technology, 8.2, 2013, pp. 288-294
Chakkor S., Baghouri M., Hajraoui A., “Performance Analysis of Faults Detection in Wind Turbine Generator Based on High-Resolution Frequency estimation Methods”, International Journal of Advanced Computer Science and Applications, 5, 4, 2014, pp. 139-148
Gokalp H., Characterization of UMTS FDD Channels, Science and Technology for the degree of Doctor of Philosophy, Department of Electrical Engineering and Electronics, Manchester, United Kingdom, 2001.