Nā ʻōnaehana radar

2. Ke ana ʻana a me ka nānā ʻana i nā hōʻailona, ​​hiki i ka mea ʻike ke ana i ke ʻano o ka amplitude, phase, a me ke alapine (frequency) o ka hōʻailona echo radar i mea e kālailai ai i nā ʻano radar o ka pahuhopu, e like me ka ʻāpana ʻāpana o ka radar reflection.

3. ʻO ka radar jamming a me ka anti-jamming, pono nā ʻōnaehana radar e hana me nā mea hoʻopilikia mai nā radar ʻē aʻe a me nā lako uila, a hiki i nā geophones ke ana a kālailai i nā hōʻailona jamming e hāʻawi i ka ʻikepili anti-jamming a me nā hoʻolālā no nā ʻōnaehana radar. Ma keʻano holoʻokoʻa, he ʻāpana koʻikoʻi nā mea ʻike o nā ʻōnaehana radar, e demodulating a ʻike ana i nā hōʻailona echo no nā noi e like me ka ʻike ʻana i ka pahuhopu a me ka hahai ʻana, ka nānā ʻana i nā hōʻailona, ​​​​a me ka hoʻopilikia radar.