Phased array acoustic antenna
A system for remote measurement of wind velocity in the atmosphere, operating from ground level. An array of acoustic transducer elements which provide for transmitting a beam of acoustic energy along a path and receiving such transmitted energy as scattered by wind in the path. The system includes signal transmitting means for driving the arrays, and signal receiving means, with a switching system for connecting the elements of the array to the transmitting means and to the receiving means, for operation as a monostatic system. Phase control for the transmitted signals comprising phase shifters and switches for selectively connecting driving signals to the elements of the array for driving selected elements at different phases to produce first, second and third beams in sequence at three different predetermined angles from a single antenna.
- Assignee:
- Xontech, Inc.
- Patent Number(s):
- US 4558594
- OSTI ID:
- 5886682
- Resource Relation:
- Patent File Date: Filed date 25 Jun 1984; Other Information: PAT-APPL-624465
- Country of Publication:
- United States
- Language:
- English
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Acoustic imaging system
Related Subjects
AIR POLLUTION MONITORS
DESIGN
DOPPLER EFFECT
VELOCIMETERS
WIND
ACOUSTIC MEASUREMENTS
REMOTE SENSING
ANTENNAS
DATA TRANSMISSION
PHASE SHIFT
SOUND WAVES
VELOCITY
WAVE PROPAGATION
COMMUNICATIONS
ELECTRICAL EQUIPMENT
EQUIPMENT
MEASURING INSTRUMENTS
MONITORS
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)