| 摘要 |
A digital broadcast transmission system (60), comprising a power amplifier (66) that amplifies an information signal to a power level to excite an antenna to emit a broadcast signal. An amplification processing circuitry (68, 70) processes the signal. The information signal is bandpass filtered. The power amplifier (66) causes non-linear distortion to the information signal. The processing circuitry (68, 70) causes linear distortions to the information signal. A single, memoryful filter (76) pre-distorts the information signal to compensate for all of the linear and non-linear distortions. The memoryful filter (76) is a volterra filter. A memoryful filter (112) pre-distorts an information signal to compensate for linear distortion from a power amplifier (102) and non-linear distortion from pre-amplification processing circuitry (104). Linear distortion from post-amplification processing circuitry is compensated by a linear equalizer (114).
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