System and method for obstacle detection and warning
First Claim
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1. An obstacle detection system, comprising:
- a transmission antenna operable to radiate a radio frequency (RF) signal, wherein the transmission antenna is configured to rotate;
a transmitter operable to control transmission of the RF signal from the transmission antenna, wherein the transmitter is configured to control transmission of the RF signal as the transmission antenna rotates such that an incident angle at which the transmitted RF signal contacts an obstacle changes over time;
a receiver antenna operable to receive a reflection of the RF signal; and
processing circuitry operable to analyze one or more characteristics of a radar cross section (RCS) of the received reflection that result from changes in the incident angle to identify the obstacle and one or more physical attributes of the obstacle.
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Abstract
A obstacle detection system comprises a transmission antenna operable to radiate a radio frequency (RF) signal and a transmitter operable to control transmission of the RF signal from the antenna. The obstacle detection system also comprises a receiver antenna operable to receive a reflection of the RF signal; and processing circuitry operable to analyze a plurality of characteristics of a radar cross section (RCS) of the received reflection to identify an obstacle and one or more physical attributes of the obstacle.
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Citations
16 Claims
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1. An obstacle detection system, comprising:
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a transmission antenna operable to radiate a radio frequency (RF) signal, wherein the transmission antenna is configured to rotate; a transmitter operable to control transmission of the RF signal from the transmission antenna, wherein the transmitter is configured to control transmission of the RF signal as the transmission antenna rotates such that an incident angle at which the transmitted RF signal contacts an obstacle changes over time; a receiver antenna operable to receive a reflection of the RF signal; and processing circuitry operable to analyze one or more characteristics of a radar cross section (RCS) of the received reflection that result from changes in the incident angle to identify the obstacle and one or more physical attributes of the obstacle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A method of detecting an obstacle, the method comprising:
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transmitting a radio frequency (RF) signal from a transmission antenna such that an incident angle at which the transmitted RF signal contacts an obstacle changes over time; receiving reflections of the RF signal; analyzing a plurality of characteristics of a radar cross section (RCS) of the received reflections of the RF signal that result from changes in the incident angle to identify the obstacle and at least one physical attribute of the obstacle; and providing an alert to indicate the detection of the obstacle. - View Dependent Claims (12, 13, 14, 15, 16)
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Specification