References
- Huhta, J. C., and Webster, J. G., 1973, 60 Hz interference in electrocardiography. IEEE Transactions on Biomedical Engineering, 20, 91 — 100.
- Metting, V. R., Peper, A., and Grimbergen, C. A., 1990, High-quality recording of bioelectrical events, Part 1: Interference reduction, theory and practice. Medical & Biological Engineering &Computing, 28, 389 — 397.
- Soo-Chang, P. and Chien-Cheng, T., 1995, Elimination of AC interference in electrocardiogram using IIR notch filter with transient suppression. IEEE Transactions on Biomedical Engineering, 42, 1128 — 1132.
- Ma, W. K., Zhang, Y. T., and Yang, F. S., 1999, A fast recursive-least-squares adaptive notch filter and it is applications to biomedical signals. Medical & Biological Engineering & Computing, 37, 99 — 103.
- Hamilton, P. S., 1996, A comparison of adaptive and nonadaptive filters for reduction of power line interference in the ECG. IEEE Transactions on Biomedical Engineering, 43, 105— 109.
- Yoo, S. K., Kim, N. H., Song, J. S., Lee, T. H., and Kim, K. M., 1997, Simple self tuned notch filter in a bio-potential amplifier. Medical & Biological Engineering & Computing, 35, 151 — 154.
- Levkov, C., Mihov, G., Ivanov, R., and Daskalov, I., 1984, Subtraction of 50 Hz interference from the electrocardiogram. Medical & Biological Engineering & Computing, 22, 371 — 373.
- Christov, I., and Dotsinsky, I., 1988, New approach to the digital elimination of 50 Hz interference from the electrocardiogram. Medical & Biological Engineering & Computing, 26, 431 —434.
- Yan, X. G., 1993, Dynamic Levkov — Christov subtraction of mains interference. Medical & Biological Engineering & Computing, 31, 635 — 638.
- Christov, I., 2000, Dynamic powerline interference subtraction from biosignals. Medical Engineering & Technology, 24, 169 — 172.
- Levkov, C., and Mihov, G., 1996, Rejection — subtraction filter of mains interference from the ECG. Proceedings of the 13th Biennial International Conference BIOSIGNAL'96, June 1996, Technical University Brno Press, Brno, Czech Republic, pp. 183–185.
- Georgieva, T., and Mihov, G., 2002, On-line subtraction method for mains interference removing from ECG signals with signal processor. Proceedings of the 6th International Symposium 'Microelectronics Technologies and Microsystems', 20–22 November 2002, Publishing House of Lviv Polytechnic National University, Lviv, Ukraine, pp. 87 — 93.
- Mihov, G., 1996, Elimination of mains interference from the ECG in non-syncronized sampling: a theoretical approach. Proceedings of the 13th Biennial International Conference BIOSIGNAL'96, June 1996, Technical University Brno Press, Brno, Czech Republic, pp. 189 — 191.