Compare coherent vs non-coherent integration for radar detection.

• A. Coherent integration uses only power summation; non-coherent preserves phase information.
• B. Coherent integration preserves phase across pulses for higher sensitivity; non-coherent relies on power summation without phase information.
• C. Both methods yield identical results; integration time is the only difference.
• D. Non-coherent integration uses phase alignment to maximize SNR.

Answer: (B)