spatial smoothing
空间匀滑
空间平滑法
空间平滑技术
平滑处理技术
空间平滑
相干信号
adaptive smoothing algorithm
exponential smoothing algorithm
fixed field smoothing algorithm
algorithm of self-learning algorithm
BP algorithm Error Back Propagation Algorithm
20 years temporal and spatial variation
3D cadastre spatial entity
3D spatial data interoperability
3D spatial data structure