Name
Title | ||
|---|---|---|
Design of Modulated Filter Banks and Transmultiplexers With Unified Initial Solutions and Very Few Unknown Parameters |
Abstract | ||
|---|---|---|
This brief proposes a method for designing modulated filter banks (FBs) with a large number of channels. The impulse response of the long prototype filter is parameterized in terms of a few short impulse responses, thus significantly reducing the number of unknown parameters. The proposed method starts by first obtaining an FB with a few channels. The solution of this FB is then partly reused as an initial (very close to final) solution in the design of FBs with a large number of channels. The number of unknown parameters hence drastically reduces. For example, we can first design a cosine modulated FB (CMFB) with three channels whose prototype filter has a stopband attenuation of about 40 dB. We can then reuse the solution of this CMFB in the design of a CMFB with 16 384 channels whose prototype filter has a similar stopband attenuation. With our proposed method, we need to reoptimize only 14 parameters to design the CMFB with 16 384 channels. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TCSII.2014.2387678 | Circuits and Systems II: Express Briefs, IEEE Transactions |
Keywords | Field | DocType |
channel bank filters,linear phase filters,transient response,cosine modulated filter banks,filter design,impulse response,linear-phase filters,transmultiplexers,filter banks,filter banks (fbs),transmultiplexers (tmuxs),algorithm design and analysis,prototypes | Band-stop filter,Raised-cosine filter,Root-raised-cosine filter,Digital filter,Prototype filter,Control theory,Electronic engineering,Low-pass filter,Mathematics,Butterworth filter,Filter design | Journal |
Volume | Issue | ISSN |
62 | 4 | 1549-7747 |
Citations | PageRank | References |
0 | 0.34 | 14 |
Authors | ||
2 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Amir Eghbali | 1 | 70 | 9.07 |
| Håkan Johansson | 2 | 505 | 65.36 |