| 摘要 |
Disclosed is a pre-equalizer, a vestigial sideband (VSB) transmission system using the pre-equalizer, and a VSB transmission method. A first transmit signal is stored in a first memory, and a pre-equalizer pre-equalizes the first transmit signal based on a set tap coefficient. A transmitter modulates the pre-equalized first transmit signal, and sends the modulated signal. The first transmit signal is fed back to a receiver, which demodulates the transmitted first transmit signal and stores the demodulated signal as the second transmit signal in a second memory. Subsequently, the pre-equalizer calculates a tap coefficient based on an error value as the difference between the first transmit signal and the second transmit signal, and updates the set tap coefficient based on the calculated tap coefficient.
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