| 摘要 |
This device is suitable for use under propagation conditions severely affected by interference, in particular in mobile stations, in which propagation delay differences occur at the receive location due to the alternate routing differences of the reflected carrier waves. The information losses caused by phase and amplitude distortion are thereby automatically identified according to their cause in two arrangements which complement one another, i.e. in an equaliser for dynamic cancellation and an equaliser for static cancellation. The equaliser for dynamic cancellation has a frequency discriminator (3) with a device connected downstream for noise peak detection (DE) and the equaliser for static cancellation (SE) has an amplitude demodulator (9) with a polarity inverter (11) connected downstream and controlled by a polarity integrator (12). Depending on the type of interference detected, one or the other equaliser is through-connected on the output side via a changeover switch (13) to the common output. <IMAGE> |
