A new algorithm for digital filtration, namely Forth Back digital Filter, is put forward for the need of actual data processing and reduction of the phase shift.
根据实际数据处理工作的需要，以减小信号相移量为目标，提出一种新的数字滤波算法，即所谓往复数字滤波器。
Considering the characteristics of the processing of aerial gravimetry data, a FIR digital filter based on the window function is designed.
针对航空重力测量数据事后处理的特点，基于窗函数法设计了FIR数字滤波器。
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