Signal processing devices

Details Signal processing devices Signal processing devices

1979-10-23

1981-09-08

Nussbaum, Marvin L.

Wave transmission lines and networks

Coupling networks

Frequency or time domain filters and delay lines utilizing...

307221D, 333166, H03K 5159, G11C 1928, H03H 1708, H03H 1136

Patent

active

042887640

ABSTRACT:
A time delay and integrate signal processing device is provided to which, in use, a clock signal having a duty cycle which varies linearly with time at a predetermined rate is applied at an input. The number of delay stages in the path of signals from a plurality of input taps is determined in accordance with a predetermined function of the rate of change of the clock duty cycle.
Embodiments of the invention may be employed to advantage in SONAR applications where signals are received from a plurality of transducers to scan a sector by constructive summation of signal returns. The predetermined function may be chosen to minimize distortion during a scan and so scanning may take place at a higher rate than with prior art devices enabling full coverage of the sector with good range resolution to be achieved with a single device.

REFERENCES:
patent: 4152678 (1979-05-01), Shott et al.

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