Pūnaehana radar

2. ʻO ke ana ʻana o ka hōʻailona a me ka nānā ʻana, hiki i ka mea ʻike ke ana i ka amplitude, ka pae, a me ke alapine o ka hōʻailona leo radar i mea e nānā ai i nā hiʻohiʻona radar o ka pahu hopu, e like me ka ʻāpana cross-sectional.

3. Radar jamming a me anti-jamming, pono nā ʻōnaehana radar e hoʻopili i ke keakea ʻana mai nā radar ʻē aʻe a me nā lako uila, a hiki i nā geophones ke ana a nānā i nā hōʻailona jamming e hāʻawi i ka ʻikepili anti-jamming a me nā hoʻolālā no nā ʻōnaehana radar. Ma ke ʻano holoʻokoʻa, he ʻāpana koʻikoʻi nā mea ʻike i nā ʻōnaehana radar, demodulating a me ka ʻike ʻana i nā hōʻailona echo no nā noi e like me ka ʻike maka a me ka nānā ʻana, ka nānā ʻana i nā hōʻailona, ​​​​a me ka hoʻopili ʻana i ka radar.