System for collecting and processing data relating to moving bod

Details System for collecting and processing data relating to moving bod System for collecting and processing data relating to moving bod

1983-12-16

1987-06-16

Farley, Richard A.

Communications, electrical: acoustic wave systems and devices

Echo systems

Speed determination

340943, 367 97, 367102, G01S 1534

Patent

active

046740694

ABSTRACT:
An ultrasonic wave signal having its frequency varied continuously is transmitted from an ultrasonic wave transmitter toward a moving body. The wave reflected from the moving body is received by an ultrasonic wave receiver, and the resulting signal is frequency-demodulated to obtain a signal representing a frequency variation. A signal representing the feature of the moving body is produced with use of a signal representing the frequency variation of the transmitted ultrasonic wave and the signal representing the frequency variation of the received ultrasonic wave.

REFERENCES:
patent: 2769158 (1956-10-01), Schultz
patent: 3016513 (1962-01-01), Van Dyke
patent: 3290490 (1966-12-01), Auer, Jr.
patent: 3343167 (1967-09-01), Rademacher
patent: 3366922 (1968-01-01), Kay
patent: 4279019 (1981-07-01), Heyser
patent: 4364273 (1982-12-01), Redding

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