Pulse radar device
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United States of America Patent
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Aug 25, 2020
Grant Date -
Jan 25, 2018
app pub date -
Sep 29, 2017
filing date -
Mar 31, 2015
priority date (Note) -
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status (Latency Note)
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Abstract
The objective of the present invention is to use a simple circuit configuration and simple signal processing to provide a pulse radar device with which it is possible to reduce the impact of local signal carrier leakage on a received signal, and which makes it possible to perform high precision angle measurement using a multi-beam system. In order to measure the angle of an object, a pulse radar device is provided with at least two receiving antennas, and a reception circuit is provided with a signal selection switch for selectively switching between received signals received by the receiving antennas. The received signal contains a local signal leakage component, and a DC level of the received signal varies with the switching of the signal selection switch. In order to eliminate the impact of such DC level variations, a high-pass filter is disposed between a mixer and a frequency analyzer.
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