| 摘要 |
Disclosed is a differential radar system using different signals. The system comprises: a voltage control oscillator for generating a first differential signal and a second differential signal, which have different phases and have the same size; a transmission amplifier for amplifying the generated first differential signal and second differential signal; a transmission antenna unit for transmitting the amplified first differential signal and second differential signal; a reception antenna unit for receiving a third differential signal and a fourth differential signal, which are generated by reflection of the first differential signal and the second differential signal, respectively; a reception low noise amplifier for detecting a difference between the received third differential signal and fourth differential signal; a mixer for receiving the first differential signal, the second differential signal, and the detected difference between the third differential signal and the fourth differential signal, mixing the received first differential signal, second differential signal, and a difference between the third differential signal and the fourth differential signal, and then generating a fifth differential signal and a sixth differential signal, frequencies of which have been lowered to the baseband; and a final amplifier for amplifying the generated fifth differential signal and sixth differential signal. |
