| 主权项 |
1. A radar processing method in a frequency-modulated continuous-wave (FMCW) radar system, comprising:
defining a linear ramp signal having a frequency which varies linearly with time; defining a plurality of time sections of the linear ramp signal, each time section having a time duration, in a first order in time, the plurality of sections being ordered consecutively in time to define the linear ramp signal; rearranging the sections of the linear ramp signal in time such that the plurality of sections are in a second order in time different than the first order, in the second order, the plurality of sections defining a transmit control signal different than the linear ramp signal, the transmit control signal having a frequency which varies piecewise-linearly with time; generating a radar transmission signal, a frequency of the radar transmission signal varying with time according to the transmit control signal; transmitting the radar transmission signal into the region of interest; receiving radar receive signals from the region of interest; generating an intermediate frequency signal using the radar transmission signal and the radar receive signals, a frequency of the IF signal being a difference between the frequency of the radar transmission signal and a frequency of the radar receive signals; low-pass filtering the IF signal to generate a low-pass-filtered IF signal; performing radar processing on the low-pass-filtered IF signal to perform radar detection in the region of interest. |
