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城市及工程控制網(wǎng)平面點(diǎn)位精度的合理評(píng)定(2)-展示頁(yè)

2025-01-27 17:39本頁(yè)面
  

【正文】 eTTeTee?????????簡(jiǎn)化表示式: 首級(jí)平面控制網(wǎng)的絕對(duì)和相對(duì)點(diǎn)位精度評(píng)定 iiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiiyyxxyxiyxyyxxyyxxiyxyyxxyyxxiyyxxyxiqqqtgqqqqqBqqqqqAqqmmM?????????????????22]4)([2]4)([222022202022???絕對(duì)點(diǎn)位誤差的表示 首級(jí)平面控制網(wǎng)的絕對(duì)和相對(duì)點(diǎn)位精度評(píng)定 ????????????????????????? 10c oss i nc os1s i n01c oss i nc oss i n1ijkijkijkijkijkijkijkijkk TxTxTxTxTyTyTyTyF相對(duì)點(diǎn)位誤差計(jì)算的簡(jiǎn)便公式 TkkjiXkkX FQFQ),()(12 ?其中: 若 為協(xié)方差 Qx1中與 i,j,k有關(guān)的子集構(gòu)成的協(xié)方差陣,則以 i 點(diǎn)為位置基準(zhǔn), i,j 方向?yàn)榉轿换鶞?zhǔn)的 k點(diǎn)的協(xié)方差陣可表示為: ? ?kjiXQ ,1 首級(jí)平面控制網(wǎng)的絕對(duì)和相對(duì)點(diǎn)位精度評(píng)定 kjiyykjixxkjiyxkkjiyxkjiyykjixxkjiyykjixxkkjiyxkjiyykjixxkjiyykjixxkkjiyykjixxkkjiyykjixykjiyxkjixxkjikjiqqqtgqqqqqBqqqqqAqqMqqqqQD,2,202,2,202,0,20)(,20,22])([2])([2????????????????????????????????????????????????????????????????????相對(duì)誤差橢圓元素可表示為: 首級(jí)平面控制網(wǎng)的絕對(duì)和相對(duì)點(diǎn)位精度評(píng)定 ??????????????????????????????????????????????????????????????????????????????000c o ss i nc o s1s i nc o ss i nc o ss i n1000s i nc o ss i ns i nc o ss i nc o ss i nc o sc o ss i nc o s00000000000000c o ss i nc o s1s i n0c o ss i nc o ss i n1)(222211112211112??????????ijkijkijkijkijkijkijkijkijijijijijijijijijijijijijijijijiijijijijTeTxTxTxTxTyTyTyTyTTTTTTTTTTTTTxTxTxTxITyTyTyTyGGIF公式驗(yàn)證: 首級(jí)平面控制網(wǎng)的絕對(duì)和相對(duì)點(diǎn)位精度評(píng)定 0c o ss i nc o ss i n00000000s i ns i nc o s00s i nc o sc o s0s i ns i nc o s00s i nc o sc o s0000000000c o ss i nc o ss i n0022224????????????????????????????????????????????????????????????????????????????????ijijijijijijijijijijijijijijijijijijijijTTTTTTTTTTTTTTTTTTTTTIF??????0)c o ss i nc o ss i n(00)00(,44,212??????????????TijijijijjiXTXjiXTTTTQIFFQIQ 多級(jí)平面控制網(wǎng)的絕對(duì)點(diǎn)位精度的合理評(píng)定 XXXY VlXAYA ??? ??兩類(lèi)半動(dòng)態(tài)公式的比較和分析 若 X為本級(jí)網(wǎng)坐標(biāo), Y為高級(jí)網(wǎng)坐標(biāo), Y*為上級(jí)網(wǎng)的平差值, QY*為其協(xié)方差陣。 城市及工程控制網(wǎng)平面點(diǎn)位精度的合理評(píng)定 ???????????????????????mmmmmmmkikkiikikkiiyyxyyyxyyyxyyxxxyxxxXyyyyyyxxxxxxikqqqqqqqqqqQqqqqqqM?????????1111111111111120,20,)2()2( ?? 首級(jí)平面控制網(wǎng)中的絕對(duì)和相對(duì)點(diǎn)位精度 絕對(duì)點(diǎn)位誤差和相對(duì)點(diǎn)位誤差的初步概念 絕對(duì)點(diǎn)位誤差: 相對(duì)于起始數(shù)據(jù) 相對(duì)點(diǎn)位誤差: 相對(duì)網(wǎng)中與起始數(shù)據(jù)不同的基準(zhǔn) 首級(jí)平面控制網(wǎng)中的絕對(duì)和相對(duì)點(diǎn)位精度 相對(duì)點(diǎn)位誤差的基準(zhǔn)數(shù)據(jù) 相對(duì)點(diǎn)位誤差的基準(zhǔn)數(shù)據(jù)應(yīng)該包括: 位置基準(zhǔn); 方位基準(zhǔn); 長(zhǎng)度基準(zhǔn) 獨(dú)立網(wǎng)的坐標(biāo)基準(zhǔn)和協(xié)方差基準(zhǔn) 坐標(biāo)基準(zhǔn): 計(jì)算待定點(diǎn)坐標(biāo)的基準(zhǔn)數(shù)據(jù)
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