What is a key limitation of DRFM-based deception?

• A. Latency, jitter, and potential detection by countermeasures.
• B. It has no limitations.
• C. It always succeeds.
• D. It requires no power.

Answer: (A)

DRFM-based deception works by capturing radar echoes, digitizing them, and replaying them to create false targets. For the spoof to be convincing, the timing and waveform of the replay must line up with the real scene. In practice, processing delays (latency) from sampling, storage, and replay, along with clock and hardware imperfections (jitter and phase/frequency variations), introduce mismatches. These timing and waveform discrepancies can reveal the deception or reduce its effectiveness. Modern countermeasures and radar signal checks can detect inconsistencies in range, Doppler, pulse timing, or spectral characteristics, making spoofing detectable. So latency, jitter, and the potential for detection by countermeasures represent the key limitations.