SYNCHRONIZATION IN FMCW RADAR SYSTEMS

摘要

The disclosure provides a radar apparatus for estimating a position and a velocity of the plurality of obstacles. The radar apparatus includes a local oscillator that generates a first signal. A first transmit unit receives the first signal from the local oscillator and generates a first transmit signal. A frequency shifter receives the first signal from the local oscillator and generates a second signal. A second transmit unit receives the second signal and generates a second transmit signal. The frequency shifter provides a frequency offset to the first signal based on a routing delay mismatch to generate the second signal such that the first transmit signal is phase coherent with the second transmit signal.

主权项

1. A radar apparatus comprising
a local oscillator configured to generate a first signal; a first transmit unit configured to receive the first signal from the local oscillator and configured to generate a first transmit signal, a frequency shifter configured to receive the first signal from the local oscillator and configured to generate a second signal; and a second transmit unit configured to receive the second signal and configured to generate a second transmit signal, wherein the frequency shifter is configured to provide a frequency offset to the first signal based on a routing delay mismatch to generate the second signal such that the first transmit signal is phase coherent with the second transmit signal.