Airbornenoise can be blocked by barriers (walls, thick glass) or reduced by absorbers, such as foam insulators.
空降噪音可阻断障碍(墙，厚玻璃)或减少吸收剂，如泡沫绝缘体。
2
With its low noise output and rugged design, the 55lq2 is for military and aerospace programs, including airborne, shipboard, and ground applications.
由于具有低噪声输出，并采用了加固设计，它能用于军事与航空应用，包括机载、舰载和地面应用。
3
In the thesis, the video echo of the airborne PD radar was simulated. The simulated echoes include the signals of the target, the ground clutter and the noise.