| 摘要 |
A bi-static radar system (10) configured for coherent detection of a radar-signal (44) includes a plurality of radar-transceivers (30A, 30B, 30K), a controller (34), and a communications device (32). The plurality of radar-transceivers (30A, 30B, 30K) is characterized as physically spaced apart with respect to each other. The controller (34) is in communication with the each of the radar-transceivers (30A, 30B, 30K) and is configured to coherently operate each of the radar-transceivers (30A, 30B, 30K). The communications device (32) communicates both a reference-clock signal and a frame-sync signal (38) from the controller (34) to each of the plurality of radar-transceivers (30A, 30B, 30K) whereby the plurality of radar-transceivers (30A, 30B, 30K) operate coherently. Alternatively, the system (10) may include a reference-signal generator (40), a transmitter (46), and a plurality of receivers (48). The reference-signal generator (40) generates a reference-signal (36) characterized by a reference-frequency proportional to a fraction of a radar-frequency of a radar-signal (44) transmitted. The transmitter (46) generates the radar-signal (44) at the radar-frequency based on the reference-signal (36). The plurality of receivers (48) operates coherently to detect the radar-signal (44) based on the reference-signal (36). |
