Underwater anechoic coatings is the main equipment enhancing submarine ' s concealing ability , which is the only comprehensive key technique for effectively controling the submarine ' s radiated noise and reducing its active target echo intensity 水下消聲覆蓋層是提高潛艇隱蔽性的主要裝備,也是唯一既能夠有效降低主動(dòng)目標(biāo)強(qiáng)度又能抑制輻射噪聲的一項(xiàng)綜合性的關(guān)鍵技術(shù)。
Firstly after comparing advantages and disadvantages of several methods by using the data of simulative wind , the paper chooses variational analysis method t o retrive three - dimensional wind field . also , the humility field is obtained from radar echo intensity 文中首先在利用模擬風(fēng)場(chǎng)比較各種雷達(dá)資料反演方法的優(yōu)缺點(diǎn)后,選擇變分分析法從雷達(dá)資料中反演風(fēng)場(chǎng),并根據(jù)雷達(dá)回波強(qiáng)度得到濕度場(chǎng)。