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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報(bào)道

精彩|　　干??(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(cè)??(ce)地??(di)面??(mian)??，得??(de)到??(dao)兩??(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(guò)??(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(lèi)??(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(gè)??(ge)衛(wèi)??(wei)星??(xing)構(gòu)??(gou)成??(cheng)編??(bian)隊(duì)??(dui)的??(de)基??(ji)礎(chǔ)??(chu)上??(shang)??，利??(li)用??(yong)多??(duo)個(gè)??(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(cè)??(ce)繪??(hui)的??(de)精?(jing)度??(du)和??(he)效??(xiao)率??(lv)???！　≡??(gai)系??(xi)統(tǒng)??(tong)可??(ke)實(shí)??(shi)現(xiàn)??(xian)一??(yi)次??(ci)飛??(fei)越??(yue)獲??(huo)取??(qu)4組??(zu)觀??(guan)測(cè)??(ce)數(shù)??(shu)據(jù)?(ju)、6條??(tiao)有??(you)效??(xiao)測(cè)?(ce)繪??(hui)基??(ji)線??(xian)??，通??(tong)過(guò)??(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(cè)??(ce)量??(liang)精??(jing)度??(du)和??(he)測(cè)??(ce)繪??(hui)效??(xiao)率??(lv)??，時(shí)??(shi)間??(jian)去??(qu)相??(xiang)干??(gan)誤??(wu)差??(cha)小??(xiao)??，可??(ke)滿(mǎn)??(man)足??(zu)三??(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(duì)??(dui)干??(gan)涉??(she)測(cè)??(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(shí)??(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(kù)??(ku)??，為??(wei)國(guó)??(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)??。

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