Ground probing radar method and apparatus

Details Ground probing radar method and apparatus Ground probing radar method and apparatus

1989-05-26

1990-10-30

Barron, Jr., Gilberto

Communications: directive radio wave systems and devices (e.g.,

Transmission through media other than air or free space

342158, G01S 1304

Patent

active

049671995

ABSTRACT:
A wheeled support assembly 10 is manually pushed over the ground and has a motor 22 rotating an antenna assembly 60 about a vertical axis 24. Encoders 28 on the antenna shaft 20 and on a wheel axle encode antenna angular position and position over the ground. Transmitted pulses and received data pass through a rotary microwave connector 26. For example, 400 sets of pulses are emitted at equal angular intervals in each revolution of the antenna assembly. The interval between pulses is e.g. 12 microseconds, with 256 pulses per set. Noise reduction is achieved by processing the received data accordingly. In a modification the rotary connector 26 is single channel with some electronic stages mounted on the rotating antenna assembly. Power is coupled to them via the microwave cable. An umbilical connects the assembly 10 to a support facility including a computer. Alternatively, battery power is used with data transferred radiatively.

REFERENCES:
patent: 4118703 (1978-10-01), Williams
patent: 4698634 (1987-10-01), Alongi et al.
patent: 4728897 (1988-03-01), Gunton
H. F. Scott et al; "Radar Detection of Buried Pipes and Cables" Nov. 24 & 25, 1987.

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