JICCE (Çѱ¹Á¤º¸Åë½ÅÇÐȸ)
Current Result Document :
ÇѱÛÁ¦¸ñ(Korean Title) |
Convergence Analysis of Noise Robust Modified AP(affine projection) Algorithm |
¿µ¹®Á¦¸ñ(English Title) |
Convergence Analysis of Noise Robust Modified AP(affine projection) Algorithm |
ÀúÀÚ(Author) |
Hyun-Tae Kim
Jang-Sik Park
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¿ø¹®¼ö·Ïó(Citation) |
VOL 08 NO. 01 PP. 0023 ~ 0028 (2010. 02) |
Çѱ۳»¿ë (Korean Abstract) |
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¿µ¹®³»¿ë (English Abstract) |
According to increasing projection order, the AP algorithm has noise amplification problem in large background noise. This phenomenon degrades the performances of the AP algorithm. In this paper, we analyze convergence characteristic of the AP algorithm and then suggest a noise robust modified AP algorithm for reducing this problem. The proposed algorithm normalizes the update equation to reduce noise amplification of AP algorithm, by adding the multiplication of error power and projection order to auto-covariance matrix of input signal. By computer simulation, we show the improved performance than conventional AP algorithm. |
Å°¿öµå(Keyword) |
Projection Order
Noise Amplification Problem
Noise Robust
Modified AP Algorithm
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