主权项 |
1. A radar device comprising:
a first radar module; a second radar module; and a signal processor which, in operation, combines outputs of the first radar module and the second radar module, wherein the first radar module comprises:
a first channel controller which, in operation, sets a frequency band of a first carrier wave to a frequency band different from a frequency band of a second carrier wave; anda first radar transmitter and receiver which, in operation, transmits a radio-frequency first radar transmission signal generated using a prescribed first transmission code sequence and the first carrier wave, which, in operation, receives a first radar reflection signal produced as a result of reflection of the first radar transmission signal by a target, and which, in operation, converts the first radar reflection signal into a baseband first reception signal, wherein the second radar module comprises:
a second channel controller which, in operation, sets the frequency band of the second carrier wave to a frequency band different from the frequency band of the first carrier wave; anda second radar transmitter and receiver which, in operation, transmits a radio-frequency second radar transmission signal generated using a prescribed second transmission code sequence and the second carrier wave, which, in operation, receives a second radar reflection signal produced as a result of reflection of the second radar transmission signal by the target, and which, in operation, converts the second radar reflection signal into a baseband second reception signal, and wherein a part of main beam directivity of the first radar transmission signal overlaps with a part of main beam directivity of the second radar transmission signal. |