| 摘要 |
A radar system comprising a transmitter controller, configured to control an oscillator such that the oscillator provides a transmit-radar-signal a transmit-first-overlapping-portion and a transmit-second-overlapping-portion that corresponds to the instantaneous frequency of the transmit-first-frequency-overlapping-portion. The transmitter controller is configured to reconfigure the oscillator from a first-operating-mode to a second-operating-mode between a transmit-first-ramp-frequency-portion and a transmit-second-ramp rising-frequency-portion. The radar system also includes a receiver controller configured to receive a received-radar-signal that represents a reflected version of the transmit-radar-signal, and provide a combined-overlapping-portion based on a combination of the transmit-first-overlapping-portion, the transmit-second-overlapping-portion, a received-first-overlapping-portion, and a received-second-overlapping-portion. |
| 主权项 |
1. A radar system comprising:
a) a transmitter controller, configured to control an oscillator such that the oscillator provides a transmit-radar-signal, wherein the transmit-radar-signal comprises:
a transmit-first-ramp-frequency-portion, during which the frequency of the transmit-radar-signal either increases or decreases over time;a transmit-first-returning-frequency-portion, during which the frequency of the transmit-radar-signal changes in the opposite way to the transmit-first-ramp-frequency-portion; anda transmit-second-ramp-frequency-portion, during which the frequency of the transmit-radar-signal changes in the same way as the transmit-first-ramp-frequency-portion;wherein the transmit-first-ramp-frequency-portion includes:
a transmit-first-overlapping-portion, anda transmit-first-non-overlapping-portion;wherein the transmit-second-ramp-frequency-portion includes:
a transmit-second-overlapping-portion that corresponds to the instantaneous frequency of the transmit-first-frequency-overlapping-portion; anda transmit-second-non-overlapping-portion;wherein the transmitter controller is configured to reconfigure the oscillator from a first-operating-mode to a second-operating-mode between the transmit-first-ramp-frequency-portion and the transmit-second-ramp-frequency-portion; and b) a receiver controller configured to:
receive a received-radar-signal that represents a reflected version of the transmit-radar-signal, wherein the received-radar-signal includes:
a received-first-ramp-frequency-portion, during which the frequency of the received-radar-signal changes in the same way as the transmit-first-ramp-frequency-portion;a received-first-returning-frequency-portion, during which the frequency of the received-radar-signal changes in the opposite way to the transmit-first-ramp-frequency-portion;a received-second-ramp-frequency-portion, during which the frequency of the received-radar-signal changes in the same way as the transmit-first-ramp-frequency-portion; andwherein the received-radar-signal includes:
a received-first-overlapping-portion, received at the same time as the transmit-first-overlapping-portion, anda received-first-non-overlapping-portion, received at the same time as the transmit-first-non-overlapping-portion;a received-second-overlapping-portion, received at the same time as the transmit-second-overlapping-portion, anda received-second-non-overlapping-portion, received at the same time as the transmit-second-non-overlapping-portion;provide a combined-overlapping-portion based on a combination of the transmit-first-overlapping-portion, the transmit-second-overlapping-portion, the received-first-overlapping-portion, and the received-second-overlapping-portion;provide a combined-first-portion based on a combination of the transmit-first-non-overlapping-portion and the received-first-non-overlapping-portion;provide a combined-second-portion based on a combination of the transmit-second-non-overlapping-portion and the received-second-non-overlapping-portion;provide an output signal in accordance with:
the combined-overlapping-portion;the combined-first-portion; andthe combined-second-portion. |
