Demodulator for pulse-position modulated signals, used in signal transmission by way of radio hertzien signals, uses correlator for generating decoding signal from pulse-position modulated reception signal

摘要

The demodulator comprises a correlator, this correlator being an autocorrelator (150,152,154,160) provided with units (150,152) for generating a decoding signal from a pulse-position modulated reception signal. There is a first retard unit (154) for forming from the reception signal (r(t)) a first reception retard signal (r(t-delta)) and a multiplier (160) for multiplying the first reception retard signal by the decoding signal, this first reception retard signal affecting a retard (delta) equal to the mean pulse repletion time or a multiple of this mean time.