| Presentation | 1997/1/24 Necessary and Sufficient Condition for M-channel Perfect Reconstruction Filter Banks to Avoid Checkerboard Effects Masaki KATO, Toshiyuki YOSHIDA, Akinori NISHIHARA, |
|---|---|
| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Output distortions cannot be avoided in filter banks when subband signals are quantized in practical applications, even if perfect reconstruction conditions are satisfied. Linear periodical time-varying property of synthesis bank causes periodical distortion which is called checkerboard effect. In this report, necessary and sufficient condition for M-channel perfect reconstruction filter banks to avoid checkerboard effects is given. We give a new theorem which show that the condition that each polyphase component of synthesis lowpass filter has the same. DC gain and the condition that each analysis filter except a lowpass filter has a zero at DC are equivalent. The condition for paraunitary filterbanks is also given. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | M-channel perfect reconstruction filter banks / checkerboard effects / polyphase matrix |
| Paper # | CAS96-79 |
| Date of Issue |
| Conference Information | |
| Committee | CAS |
|---|---|
| Conference Date | 1997/1/24(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | |
| Vice Chair | |
| Secretary | |
| Assistant | |
| Paper Information | |
| Registration To | Circuits and Systems (CAS) |
|---|---|
| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Necessary and Sufficient Condition for M-channel Perfect Reconstruction Filter Banks to Avoid Checkerboard Effects |
| Sub Title (in English) | |
| Keyword(1) | M-channel perfect reconstruction filter banks |
| Keyword(2) | checkerboard effects |
| Keyword(3) | polyphase matrix |
| 1st Author's Name | Masaki KATO |
| 1st Author's Affiliation | Faculty of Eng., Tokyo Institute of Technology() |
| 2nd Author's Name | Toshiyuki YOSHIDA |
| 2nd Author's Affiliation | Faculty of Eng., Tokyo Institute of Technology |
| 3rd Author's Name | Akinori NISHIHARA |
| 3rd Author's Affiliation | Faculty of Eng., Tokyo Institute of Technology |
| Date | 1997/1/24 |
| Paper # | CAS96-79 |
| Volume (vol) | vol.96 |
| Number (no) | 476 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |