Digital method of detecting pulses of short duration and arrangement for implementing the method

An arrangement for detecting pulses of short duration in a complex-valued digital input signal, comprising:

• a clocked delay line for receiving the complex-valued digital input signal and delaying the input signal up to a signal (AU) under test;
• a magnitude generator for receiving the complex-valued digital signal and generating associated amplitude values from the complex-valued digital input signal;
• a clocked memory for receiving and storing a predeterminable number (N) of the amplitude values on a temporally consecutive basis;
• logic means coupled to the clocked memory for selecting an amplitude value under test (AUT) from the stored amplitude values, determining a ranking of the remaining amplitude values and outputting an associated signal sample for a predeterminable rank within the ranking;
• means for multiplying the associated signal sample by a predeterminable weighting factor (k) for generating an amplitude threshold value (SW);
• and
• means for comparing the amplitude value under test (AUT) that is part of the signal under test (AU) to the amplitude threshold value (SW) and outputting a marking signal (AK) if the threshold value (SW) is exceeded.