As moat of non-coherent ruder cc active duty harm a little clutter cancellation ability, whenever flying targets enter the area of ground clutter, it is very difficult for radar to thieve targets.

• 摘要由于大多数非相参体制雷达没有杂波对消能力或杂波对消能力较差，一旦各类飞行目标进入地杂波区，雷达就难于观测目标。