Ultra-wideband swept range gate radar system with variable transmitter delay
First Claim
1. A range swept ultra-wideband radar system adapted for sensing a nearby target, comprising:
- a transmitter emitting ultra-wideband radio pulses wherein the transmitter is driven by a continuously variable delay to determine a distance of the target from the system; and
a receiver located for receiving the emitted signals after being reflected from the target.
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Abstract
A cost-effective ultra-wideband band radar system capable of locating nearby buried objects such as reinforcing steel rods, pipes, and other objects buried in concrete, soil, behind walls, or in the air. A sequence of ultra-wideband band radar pulses are emitted without a carrier and the system detects deflected pulse energy caused by the transmitted pulse whenever encountering a change in the medium i.e. an air to metal change or concrete to metal change. This reflected energy is detected and visually displayed. The range gate delay of the transmitter is continuously varied, thus changing the distance from the unit to where the reflected energy would be potentially detected from the target. The receiver is driven by a fixed delay. By continuously sweeping the "depth" of the scan, the operator need only move the unit in two dimensions across the surface to detect objects buried or hidden at varying depths interior to or behind the surface.
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Citations
15 Claims
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1. A range swept ultra-wideband radar system adapted for sensing a nearby target, comprising:
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a transmitter emitting ultra-wideband radio pulses wherein the transmitter is driven by a continuously variable delay to determine a distance of the target from the system; and a receiver located for receiving the emitted signals after being reflected from the target. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification