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US07397419B2 Radar apparatus and failure detection method thereof 失效
雷达装置及其故障检测方法

Radar apparatus and failure detection method thereof
摘要:
The present invention provides a radar apparatus, which can diagnose failure at low cost with high accuracy, and a failure diagnosis method thereof. An antenna serves as both a transmit antenna and a receive antenna. A transmit and receive select switch switches the transmission and reception of the antenna. A control unit measures a power value based on an output signal of a receive wave received by the antennas, and judges that the transmit and receive select switch fails when this power value exceeds a threshold.
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