| 摘要 |
<p>The equaliser consists of a transversal filter with delay lines, controlled adjustment elements and a first summator, to whose output the first input of a differential amplifier is connected. Amplifier second input is connected to a circuit for generation of an ideal signal, so that samples of an ideal reference signal appear at the amplifier output at specified time intervals. The equaliser input (E) is connected to a shift register (S1) with N outputs. The differential amplifier (D) output is connected to a further shift register (S1) outputs and N last outputs of the second shift register (S2) are connected to the two inputs of N multipliers (M), whose outputs are connected to N inputs of a further summator (SU2). The output of the latter is connected through a switch (U) to the N control inputs of the transversal filter control elements, so that the filter is adaptively adjusted.</p> |
