| 摘要 |
<p>A detection and ranging system includes: a signal generator (10) configured to generate M probe signals having different carrier frequencies; M transmitting elements (AT1, AT2) configured to transmit the M probe signals; N receiving elements (AR1 through ARN) configured to receive an echo signal from a target; N demodulators (20-1 through 20-N) provided for the N receiving elements, each of the demodulators being configured to generate a demodulated echo signal by demodulating an echo signal received by a corresponding one of the receiving elements by using at least one of the M probe signals, and to generate M sets of data signals corresponding to the M probe signals by filtering the modulated echo signal in a frequency domain; and a signal processor (30) configured to detect the target according to M×N sets of data signals generated by the N demodulators.</p> |
