三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 這??(zhe)次??(ci)成??(cheng)功??(gong)在??(zai)軌??(gui)應??(ying)用??(yong)的??(de)多??(duo)基??(ji)線??(xian)干??(gan)涉??(she)SAR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??(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)?，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?(dui)干??(gan)涉?(she)測??(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??(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??(guo)科??(ke)學?(xue)院??(yuan)空??(kong)天??(tian)院??(yuan)星??(xing)載?(zai)SAR研??(yan)究??(jiu)團??(tuan)隊??(dui)表??(biao)示??(shi)??，“宏??(hong)圖??(tu)一??(yi)號?(hao)”衛(wèi)??(wei)星??(xing)入??(ru)軌??(gui)后?(hou)??，研??(yan)究??(jiu)團??(tuan)隊??(dui)開??(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??(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??(hao)(ICESAT-2)激??(ji)光?(guang)控??(kong)制??(zhi)點?(dian)數(shù)??(shu)據(jù)??(ju)對??(dui)地??(di)形?(xing)測??(ce)量??(liang)結??(jie)果??(guo)進??(jin)行??(xing)高??(gao)程??(cheng)精??(jing)度??(du)驗??(yan)證??(zheng)??，初??(chu)步??(bu)驗??(yan)證??(zheng)結??(jie)果??(guo)表?(biao)明??(ming)??，湖??(hu)南??(nan)株??(zhu)洲??(zhou)等??(deng)試??(shi)驗??(yan)地??(di)點??(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??(ce)繪??(hui)精??(jing)度?(du)要??(yao)求??(qiu)??。??后??(hou)續(xù)??(xu)??，研??(yan)究??(jiu)團??(tuan)隊?(dui)還??(hai)將??(jiang)對??(dui)多??(duo)基??(ji)線??(xian)干??(gan)涉??(she)SAR系??(xi)統(tǒng)??(tong)進??(jin)行??(xing)姿??(zi)態(tài)??(tai)和??(he)基??(ji)線?(xian)標??(biao)定??(ding)等??(deng)持??(chi)續(xù)??(xu)優(yōu)??(you)化??(hua)操??(cao)作??(zuo)??，以??(yi)進??(jin)一??(yi)步??(bu)提??(ti)升??(sheng)高??(gao)程?(cheng)測??(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??(ku)??，為??(wei)國??(guo)民??(min)經(jīng)??(jing)濟?(ji)建??(jian)設??(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??(wu)??。(完??(wan))
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