三九養(yǎng)生堂記者 鄧肯·蓋伊 報道
精彩| 衛(wèi)?(wei)星??(xing)入??(ru)軌??(gui)后?(hou)??，開?(kai)展??(zhan)了??(le)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)ICESAT-2激?(ji)光??(guang)控??(kong)制??(zhi)點(diǎn)??(dian)數(shù)?(shu)據(jù)??(ju)對??(dui)地??(di)形??(xing)測??(ce)量??(liang)結(jié)??(jie)果??(guo)進(jìn)??(jin)行??(xing)高?(gao)程??(cheng)精??(jing)度??(du)驗??(yan)證??(zheng)??，圖??(tu)中??(zhong)試??(shi)驗??(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)??，初??(chu)步??(bu)驗??(yan)證??(zheng)結(jié)??(jie)果??(guo)滿??(man)足?(zu)1：5萬??(wan)比??(bi)例??(li)尺??(chi)測??(ce)繪??(hui)精??(jing)度??(du)要??(yao)求??(qiu)??。后??(hou)續(xù)??(xu)經(jīng)??(jing)過??(guo)姿?(zi)態(tài)??(tai)和??(he)基??(ji)線??(xian)標(biāo)??(biao)定??(ding)等??(deng)操??(cao)作??(zuo)??，高??(gao)程??(cheng)測??(ce)量??(liang)精??(jing)度??(du)將?(jiang)進(jìn)??(jin)一??(yi)步??(bu)提??(ti)升??(sheng)??。 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??(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??(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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責(zé)編：楊之光
審核：吉尼
責(zé)編：呂程平