| Presentation | 2000/6/16 Methods to Update the Coefficients of Lattice Filter and Its Application to System Identification Kensaku FUJII, Arata KAWAMURA, Yoshio ITOH, Yutaka FUKUI, Yoshinori TANAKA, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | This paper proposes a method to update the reflection coefficients of lattice filter by using adaptive algorithms for finite impulse response (FIR) filter. The reflection coefficients are generally estimated as the cross-correlation coefficient between the forward and backward prediction errors in each stage of lattice filter. The estimation therefore requires two divisions in each stage, totally double the number of steps. Unfortunately, the division requires far higher processing cost than that of multiplication. This high processing cost becomes an obstacle to the application of lattice filter to practical systems. The method, proposed in this paper, can decrease the number of divisions to one provided that using the normalized least mean square (NLMS) algorithm. On the other hand, conventional method to update the reflection coefficients cannot be used as the adaptive algorithm for system identification. However, the method enables to apply the lattice filter to system identification. The stability of lattice filter can be easily discriminated. The method simplifies structuring the inverse filter. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | lattice filer / adaptive algorithm / division / system idedntification / NLMS algorithm |
| Paper # | CAS2000-24,VLD2000-33,DSP2000-45 |
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| Conference Information | |
| Committee | CAS |
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| Conference Date | 2000/6/16(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Methods to Update the Coefficients of Lattice Filter and Its Application to System Identification |
| Sub Title (in English) | |
| Keyword(1) | lattice filer |
| Keyword(2) | adaptive algorithm |
| Keyword(3) | division |
| Keyword(4) | system idedntification |
| Keyword(5) | NLMS algorithm |
| 1st Author's Name | Kensaku FUJII |
| 1st Author's Affiliation | FUJITSU LABORATORIES LTD. Wireless Communication Systems lab. (L41)() |
| 2nd Author's Name | Arata KAWAMURA |
| 2nd Author's Affiliation | TOTTORI UNIVERSITY Faculty of Engineering |
| 3rd Author's Name | Yoshio ITOH |
| 3rd Author's Affiliation | TOTTORI UNIVERSITY Faculty of Engineering |
| 4th Author's Name | Yutaka FUKUI |
| 4th Author's Affiliation | TOTTORI UNIVERSITY Faculty of Engineering |
| 5th Author's Name | Yoshinori TANAKA |
| 5th Author's Affiliation | FUJITSU LABORATORIES LTD. Wireless Communication Systems lab. (L41) |
| Date | 2000/6/16 |
| Paper # | CAS2000-24,VLD2000-33,DSP2000-45 |
| Volume (vol) | vol.100 |
| Number (no) | 119 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |