Steps are being taken to cut down the accident frequency rate.
有关方面正在采取措施降低意外伤亡事故频率。
The properties of Doppler centroid frequency and Doppler frequency rate of GEO SAR is discussed in detail.
探讨了同步轨道SAR多普勒中心频率和调频率的特征。
The relative frequency and Doppler frequency rate estimation accuracy is high, and the process of solving the ambiguity is simple.
该算法具有相对频率估计精度高、解模糊过程简单、运算量小、多普勒频率变化率测量精度高等优点。
The relative frequency and Doppler frequency rate estimation accuracy is high, and the process of solving the ambiguity is simple.
该算法具有相对频率估计精度高、解模糊过程简单、运算量小、多普勒频率变化率测量精度高等优点。
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