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MINIMIZING PHASE NOISE IN FMCW RADAR AND DETECTING RADAR HOUSING COATING
MINIMIZING PHASE NOISE IN FMCW RADAR AND DETECTING RADAR HOUSING COATING
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机译:最小化FMCW雷达中的相位噪声和检测雷达壳体涂层
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摘要
One illustrative embodiment of a radar system includes: a signal generator, a variable phase shifter element, and a mixer. The signal generator supplies a frequency modulated continuous wave (FMCW) signal to a transmit antenna protected by a housing, which causes a housing reflection having a frequency offset from the FMCW signal. The variable phase shifter element derives a reference signal from the FMCW signal by applying a time-dependent phase shift based on the frequency offset. The mixer obtains a receive signal including said housing reflection and multiplies the receive signal with the reference signal to produce a downconverted signal.
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