Diebold, Gerald J. Department of Chemistry, Brown University, Providence, Rhode Island.
- Equalizer structures
- Fast algorithms
- Blind algorithms
- Maximum-likelihood equalizers
- OFDM and frequency-domain equalization
- Links to Primary Literature
- Additional Readings
In digital communications systems, data is transmitted from the transmitter to the receiver over a channel, which may be a cable or a wireless medium. Every physical channel adds some random noise to the transmitted signal, and so the received signal is a noisy version of the transmitted signal. In addition, the transmitted signal will be distorted if the frequency response of the channel is not flat and its phase response is not linear. The term channel equalization stems from the requirement that the amplitude response of the channel must be flat, that is, the same for all frequencies of the channel. If the amplitude response is not flat, it must be equalized using an appropriate device at the receiver, which is called an equalizer.
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