| 摘要 |
PROBLEM TO BE SOLVED: To detect and correct IQ imbalance of a radar device.SOLUTION: The radar device includes: an IQ mixer 26 for inputting a received signal and a local oscillation signal and outputting an IQ signal; generation means (a phase shifting part 30) for generating an adjustment signal to cause the IQ mixer to output an output signal corresponding to each of multiple different positions on an IQ plane, and supplying the adjustment signal to the IQ mixer as the received signal or the local oscillation signal; and detection means (a control processing part 10) for, when the adjustment signal is being supplied from the generation means to the IQ mixer, inputting the IQ signal outputted from the IQ mixer, and detecting imbalance of the IQ mixer, on the basis of deviation from a locus when the IQ mixer is balanced. |
