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　　三九養(yǎng)生堂記者 鄧肯·蓋伊 報(bào)道

精彩|　　這?(zhe)次??(ci)成??(cheng)功??(gong)在??(zai)軌??(gui)應(yīng)??(ying)用??(yong)的??(de)多??(duo)基??(ji)線??(xian)干??(gan)涉??(she)SAR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)線秘(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)??，并??(bing)可??(ke)滿??(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)??，多??(duo)基??(ji)線??(xian)干??(gan)涉??(she)SAR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)???！　≈??(zhong)國(guó)??(guo)科??(ke)學(xué)??(xue)院?(yuan)空??(kong)天??(tian)院??(yuan)星??(xing)載??(zai)SAR研??(yan)究??(jiu)團(tuán)??(tuan)隊(duì)??(dui)表?(biao)示??(shi)?，“宏??(hong)圖??(tu)一??(yi)號(hào)??(hao)”衛(wèi)??(wei)星??(xing)入?(ru)軌??(gui)后??(hou)?，研??(yan)究??(jiu)團(tuán)??(tuan)隊(duì)??(dui)開(kāi)??(kai)展??(zhan)多??(duo)模?(mo)式??(shi)高??(gao)分??(fen)辨??(bian)率??(lv)成??(cheng)像??(xiang)和??(he)多?(duo)區(qū)??(qu)域??(yu)多??(duo)基??(ji)線??(xian)干??(gan)涉??(she)測(cè)??(ce)繪??(hui)?，采??(cai)用??(yong)冰??(bing)、云??(yun)和??(he)陸??(lu)地??(di)高??(gao)程??(cheng)衛(wèi)??(wei)星??(xing)二??(er)號(hào)??(hao)(ICESAT-2)激??(ji)光??(guang)控??(kong)制??(zhi)點(diǎn)??(dian)數(shù)??(shu)據(jù)??(ju)對(duì)??(dui)地??(di)形??(xing)測(cè)??(ce)量??(liang)結(jié)??(jie)果??(guo)進(jìn)??(jin)行??(xing)高?(gao)程??(cheng)精??(jing)度??(du)驗(yàn)??(yan)證?(zheng)?，初??(chu)步??(bu)驗(yàn)??(yan)證??(zheng)結(jié)??(jie)果??(guo)表??(biao)明??(ming)?，湖??(hu)南??(nan)株??(zhu)洲??(zhou)等??(deng)試??(shi)驗(yàn)??(yan)地??(di)點(diǎn)??(dian)高??(gao)程??(cheng)中??(zhong)誤??(wu)差??(cha)分??(fen)別??(bie)優(yōu)?(you)于??(yu)2米??(mi)和??(he)5米??(mi)?，滿??(man)足??(zu)1：50000比??(bi)例??(li)尺??(chi)測(cè)??(ce)繪??(hui)精??(jing)度??(du)要??(yao)求??(qiu)?。??后??(hou)續(xù)??(xu)?，研??(yan)究??(jiu)團(tuán)??(tuan)隊(duì)??(dui)還??(hai)將??(jiang)對(duì)??(dui)多??(duo)基??(ji)線??(xian)干??(gan)涉??(she)SAR系??(xi)統(tǒng)??(tong)進(jìn)??(jin)行??(xing)姿??(zi)態(tài)??(tai)和??(he)基??(ji)線??(xian)標(biāo)?(biao)定??(ding)等??(deng)持??(chi)續(xù)??(xu)優(yōu)??(you)化??(hua)操??(cao)作??(zuo)?，以?(yi)進(jìn)??(jin)一??(yi)步?(bu)提??(ti)升??(sheng)高??(gao)程??(cheng)測(cè)??(ce)量??(liang)精??(jing)度??(du)?，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)?。(完??(wan))

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