短語詞組短語doppler r shift 多普勒頻移doppler frequency shift dfs 多普勒頻漂Doppler frequency shift sensitivity 多譜勒頻移敏感性Doppler frequency shift simulation 多普勒頻移模擬doppler frequency shift compensate 多普勒補償doppler rate shift 多普勒速率偏移doppler frequency shift compensation 多普勒頻率補償doppler frequency shift 多普勒頻移;多卜勒頻移;都卜勒頻移;率偏移GPS Doppler frequency shift GPS 多普勒頻移 返回 Doppler shift