What is the objective of data fusion in SHORAD systems?

• A. Rely on a single sensor only.
• B. Increase radar clutter.
• C. Deactivate one sensor.
• D. Merge data from multiple sensors to improve tracking fidelity.

Answer: (D)

Data fusion in SHORAD systems means combining observations from multiple sensors to produce a more accurate and reliable estimate of a target’s state. Each sensor provides different and complementary information, and each has its own uncertainty. By merging radar measurements with optical/IR or other sensor data, the system can cancel out individual sensor weaknesses, reduce noise, and resolve ambiguities in range, speed, and trajectory. This leads to a higher-quality track, better detection across varying conditions, and more confident engagement decisions.

Relying on a single sensor would miss cross-checks and degrade robustness; increasing radar clutter or deactivating sensors would both harm performance, not improve it.