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2. Ohta, M. and A. Ikuta, "Applicability of two stochastic evaluation methods to electromagnetic waves in near field leaked from ITE group under parallel working situation --- Introduction of some composition principle in space and time domain," Journal of Electromagnetic Waves and Applications, Vol. 17, No. 4, 615-616, 2003.
doi:10.1163/15693930360681974
3. Ikuta, A., O. Tokhi, and M. Ohta, "A cancellation method for background noise for a sound enviroment system with unknown structure," IEICE Transactions on Fundamentals of Electronics, Vol. E84-A, No. 2, 457-466, 2001.
4. Ikuta, A. and M. Ohta, "A state estimation method of impulsive ignal using digital filter under the existence of external noise and its application to room acoustics," IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences, Vol. E75-A, No. 8, 988-995, 1992.
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6. Ikuta, A. and M. Ohta, "Signal processing method by introducing fuzzy theory and its application to electromagnetic and sound environments," Proceedings of EUROCON 2007, 2007.
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doi:10.1016/0022-247X(68)90078-4
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doi:10.1109/TIT.1968.1054178
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10. Ohta, M., A. Ikuta, and N. Takaki, "A new trial of regression analysis with less information loss and its application to sound insulation walls --- Matching to the prediction of response probability distribution," J. of the Acoustical Society of Japan, Vol. 44, 848-856, 1988.