How do monostatic and bistatic radar configurations differ?

How do monostatic and bistatic radar configurations differ?

• A. Monostatic transmits and receives at the same location; bistatic uses different locations
• B. Monostatic uses separate transmitter and receiver; bistatic shares a common location
• C. Monostatic is space-based; bistatic is ground-based
• D. Monostatic uses phased array; bistatic uses dish

Answer: (A)

The main distinction is where the transmitter and receiver are located relative to each other. In a monostatic radar, the transmitter and receiver are at the same location, often sharing the same antenna or being tightly co-located. The radar sends a pulse and listens for echoes at the same point, so the round-trip path is essentially from one point back to that same point. In a bistatic radar, the transmitter and receiver are at different locations. The signal goes from the transmitter to the target and then from the target to a separate receiver. This creates two distinct spatial points and changes the geometry: the measured time corresponds to the sum of the distances from transmitter to target and from target to receiver, not a simple back-and-forth path. It also alters Doppler and angle estimation because the viewing geometry involves two fixed points rather than one. Monostatic setups are typically simpler to design and operate, while bistatic configurations offer different capabilities and trade-offs, especially regarding placement of the transmitter and receiver and the resulting imaging and tracking requirements.

The main distinction is where the transmitter and receiver are located relative to each other. In a monostatic radar, the transmitter and receiver are at the same location, often sharing the same antenna or being tightly co-located. The radar sends a pulse and listens for echoes at the same point, so the round-trip path is essentially from one point back to that same point.

In a bistatic radar, the transmitter and receiver are at different locations. The signal goes from the transmitter to the target and then from the target to a separate receiver. This creates two distinct spatial points and changes the geometry: the measured time corresponds to the sum of the distances from transmitter to target and from target to receiver, not a simple back-and-forth path. It also alters Doppler and angle estimation because the viewing geometry involves two fixed points rather than one. Monostatic setups are typically simpler to design and operate, while bistatic configurations offer different capabilities and trade-offs, especially regarding placement of the transmitter and receiver and the resulting imaging and tracking requirements.