ELECTRONIC SCANNING TYPE RADAR DEVICE

摘要

PROBLEM TO BE SOLVED: To provide an electronic scanning type radar device capable of suppressing interference by a simple constitution in the electronic scanning type radar device.

SOLUTION: Sampled beat signals RD are cut out as a plurality of short-time data SD in a time direction relative to each antenna element. An interference component frequency of an interference wave is detected from a frequency spectrum of the short-time data SD. A phase correction table of an interference component is generated based on a frequency spectrum component of in the detected interference component frequency. Each phase of interference components of reception data of each channel is aligned based on the phase correction table. An interference direction component is suppressed by removing a direct component from the reception data of each channel having each aligned phase. Each phase of the reception data of each channel from which the interference direction component is removed is returned to the original state.

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