Infinite length results and design implications for time-domain equalizers
We show that maximum shortening signal-to-noise ratio (SNR) time-domain equalizers (TEQs) are often nearly symmetric. Constraining the TEQ to be symmetric causes only a 3% loss in bit rate (averaged over eight standard ADSL channels). Symmetric TEQs have greatly reduced design and implementation com...
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| Veröffentlicht in: | IEEE transactions on signal processing 2004-01, Vol.52 (1), p.297-301 |
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| container_title | IEEE transactions on signal processing |
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| creator | Martin, R.K. Ming Ding Evans, B.L. Johnson, C.R. |
| description | We show that maximum shortening signal-to-noise ratio (SNR) time-domain equalizers (TEQs) are often nearly symmetric. Constraining the TEQ to be symmetric causes only a 3% loss in bit rate (averaged over eight standard ADSL channels). Symmetric TEQs have greatly reduced design and implementation complexity. We also show that for infinite length TEQs, minimum mean squared error (MMSE) target impulse responses have all zeros on the unit circle, which can lead to poor bit rate performance. |
| doi_str_mv | 10.1109/TSP.2003.820064 |
| format | Article |
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| ispartof | IEEE transactions on signal processing, 2004-01, Vol.52 (1), p.297-301 |
| issn | 1053-587X 1941-0476 |
| language | eng |
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| subjects | Bit rate Channels Constraining Convolution Demodulation Equalizers Errors Fast Fourier transforms Finite impulse response filter Impulses OFDM modulation Redundancy Signal processing Signal to noise ratio Time domain analysis |
| title | Infinite length results and design implications for time-domain equalizers |
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