Modal parameters that need to be extracted from experimental modal analysis. So I want to use RFP method because it deals with multi FRF signal which suited for SIMO and MIMO method. If any of you having good material, kindly share with me.
Hi Prakash
You can find the details of RFP algorithm in the following paper
Richardson, M., Formenti, D.; “Parameter estimation from frequency response measurements using rational fraction polynomials”, Proceedings of the 1st IMAC, Orlando (FL), USA, 1982.
I will also suggest you to read following two papers on Unified matrix polynomial approach, which is a framework that helps in understanding and explaining most modal parameter estimation algorithms including RFP.
Allemang, R.J., Brown, D.L.,; “A unified matrix polynomial approach to modal identification”, Journal of Sound and Vibration, Volume 211, Number 3, pp. 301-322, April 1998.
Allemang, R.J., Phillips, A.W.; “The unified matrix polynomial approach to understanding modal parameter estimation: an update”, Proceedings of ISMA International Conference on Noise and Vibration Engineering, Katholieke Universiteit Leuven, Belgium, 2004.
Further, unless you have some specific condition that require you to use RFP, I would suggest that you start with Polyreference Time Domain algorithm as that is comparatively easier to understand and code. You can find detail of PTD in UMPA papers listed above.
BR
Shashank
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