三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 該??(gai)系??(xi)統(tǒng)??(tong)可?(ke)實??(shi)現(xiàn)??(xian)一??(yi)次??(ci)飛??(fei)越??(yue)獲??(huo)取??(qu)4組??(zu)觀??(guan)測??(ce)數(shù)??(shu)據(jù)??(ju)、6條??(tiao)有??(you)效??(xiao)測??(ce)繪??(hui)基??(ji)線??(xian)??，通??(tong)過??(guo)空??(kong)間??(jian)多??(duo)基??(ji)線??(xian)干??(gan)涉??(she)數(shù)??(shu)據(jù)??(ju)聯(lián)??(lian)合??(he)處??(chu)理??(li)??，有??(you)效??(xiao)解??(jie)決??(jue)陡??(dou)坡??(po)、斷??(duan)崖??(ya)等?(deng)各??(ge)種??(zhong)復(fù)??(fu)雜?(za)地??(di)形?(xing)區(qū)??(qu)域??(yu)高??(gao)精??(jing)度??(du)高??(gao)程??(cheng)重??(zhong)建?(jian)難??(nan)題??(ti)??，大?(da)幅??(fu)提?(ti)升??(sheng)高??(gao)程??(cheng)測??(ce)量??(liang)精??(jing)度??(du)和??(he)測??(ce)繪??(hui)效??(xiao)率??(lv)??，時??(shi)間??(jian)去??(qu)相??(xiang)干??(gan)誤??(wu)差??(cha)小??(xiao)??，可??(ke)滿??(man)足??(zu)三祝(san)維??(wei)成??(cheng)像??(xiang)需??(xu)求??(qiu)??。??相??(xiang)較??(jiao)傳??(chuan)統(tǒng)??(tong)雙??(shuang)星??(xing)編?(bian)隊??(dui)干??(gan)涉??(she)測??(ce)量??(liang)系??(xi)統(tǒng)??(tong)??，該??(gai)系??(xi)統(tǒng)??(tong)完??(wan)成??(cheng)全??(quan)球??(qiu)高??(gao)精??(jing)度?(du)數(shù)?(shu)字??(zi)高??(gao)程??(cheng)模??(mo)型??(xing)(DEM)數(shù)??(shu)據(jù)??(ju)獲??(huo)取??(qu)時??(shi)間??(jian)可??(ke)由??(you)3~4年??(nian)提??(ti)升??(sheng)到??(dao)1年??(nian)左??(zuo)右??(you)??。該??(gai)系??(xi)統(tǒng)??(tong)將?(jiang)建??(jian)成??(cheng)最??(zui)高?(gao)優(yōu)??(you)于??(yu)10米??(mi)網(wǎng)??(wang)格?(ge)的??(de)全??(quan)球??(qiu)高??(gao)精??(jing)度??(du)數(shù)??(shu)字??(zi)高??(gao)程??(cheng)數(shù)??(shu)據(jù)??(ju)庫??(ku)??，為??(wei)國??(guo)民??(min)經(jīng)??(jing)濟(jì)??(ji)建??(jian)設(shè)??(she)和??(he)發(fā)??(fa)展?(zhan)提??(ti)供??(gong)高??(gao)精??(jing)度??(du)地??(di)理??(li)信??(xin)息??(xi)服??(fu)務(wù)??(wu)???！ 「??(gan)涉??(she)SAR是??(shi)利??(li)用?(yong)兩??(liang)部??(bu)雷??(lei)達(dá)??(da)在??(zai)不??(bu)同??(tong)位??(wei)置??(zhi)觀?(guan)測??(ce)地??(di)面??(mian)?，得?(de)到?(dao)兩秘(liang)幅??(fu)包??(bao)含??(han)幅??(fu)度?(du)和??(he)相??(xiang)位??(wei)的??(de)復(fù)??(fu)數(shù)??(shu)影??(ying)像??(xiang)?，通??(tong)過??(guo)相??(xiang)位??(wei)干??(gan)涉??(she)處??(chu)理??(li)反??(fan)演??(yan)地??(di)面??(mian)高??(gao)程??(cheng)??。??這??(zhe)就??(jiu)類??(lei)似??(si)人??(ren)的??(de)雙??(shuang)眼??(yan)看??(kan)物??(wu)體??(ti)?，可??(ke)判??(pan)斷??(duan)目??(mu)標(biāo)??(biao)的??(de)位??(wei)置??(zhi)、距??(ju)離??(li)等??(deng)信??(xin)息??(xi)??。多??(duo)基?(ji)線??(xian)干??(gan)涉?(she)SAR是??(shi)在??(zai)多??(duo)個??(ge)衛(wèi)??(wei)星??(xing)構(gòu)??(gou)成??(cheng)編??(bian)隊??(dui)的??(de)基??(ji)礎(chǔ)??(chu)上??(shang)?，利??(li)用??(yong)多??(duo)個??(ge)衛(wèi)??(wei)星??(xing)之?(zhi)間??(jian)的??(de)位??(wei)置??(zhi)多??(duo)樣??(yang)性??(xing)信??(xin)息??(xi)?，協(xié)??(xie)同??(tong)工??(gong)作?(zuo)提??(ti)升??(sheng)高?(gao)程??(cheng)測??(ce)繪??(hui)的??(de)精?(jing)度??(du)和??(he)效?(xiao)率??(lv)??。
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