Received signal encoding and correlating system

Details Received signal encoding and correlating system Received signal encoding and correlating system

1979-11-16

1981-06-09

Ciarlante, Anthony V.

Measuring and testing

Vibration

By mechanical waves

G01N 2904

Patent

active

042717078

ABSTRACT:
An ultrasonic phased array imaging system having a received signal encoding and correlating system. Pulse echoes picked up by each of the plurality of transducers are passed by a timed gate signal only during a predetermined time interval when a return signal from a focal point is expected to arrive. The return signal is also encoded by a chirp waveform. All gated chirp signals are fed to a dispersive transversal filter where their sum occurs simultaneously.

REFERENCES:
patent: 3775734 (1973-11-01), Bealor et al.
patent: 3918024 (1975-11-01), Macovski
patent: 3999422 (1976-12-01), Lehmann et al.
patent: 4173007 (1979-10-01), McKeighen et al.

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