A.電離層延遲 B.對(duì)流層延遲 C.接收機(jī)鐘差 D.衛(wèi)星星歷誤差 E.多路徑效應(yīng)
A.GDOP–Geometry Dilution of Precision,幾何精度衰減因子 B.PDOP–Position Dilution of Precision,位置精度衰減因子 C.TDOP–Time Dilution of Precision,時(shí)間精度衰減因子 D.HDOP–Horizontal Dilution of Precision,平面精度衰減因子 E.VDOP–Vertical Dilution of Precision,高程精度衰減因子
A.易于捕獲微弱的衛(wèi)星信號(hào)B.可消除對(duì)流層對(duì)測(cè)距信號(hào)的影響C.可提高測(cè)距精度D.便于采用碼分多址(CDMA)技術(shù)對(duì)衛(wèi)星信號(hào)進(jìn)行識(shí)別和處理E.便于對(duì)系統(tǒng)進(jìn)行控制和管理(如AS技術(shù))