常見例句However, in ionogram mode, though Digisonde works with many sounding frequencies, the resolution of Doppler shift is too low to detect ionospheric disturbances precisely. 而在頻高圖模式下;雖然工作的頻點多;能夠獲得電子濃度的高度剖面的信息;但探測的多普勒頻移的分辨率低;無法用來精確檢測電離層擾動.Simulation platform of backscatter ionogram 返回散射電離圖仿真平臺A recovery method based iterated de-noising for radio interference on backscatter ionogram 基于迭代去噪的返回散射同頻干擾修復方法Keywords Travelling ionosphere disturbance;HF Doppler;digital ionosonde;ionogram;ionospheric storm; 行進式電離層擾動;高頻多普勒;數(shù)字測高儀;頻高圖;電離層暴;vertical ionogram 垂直探測電離圖 返回 ionogram