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An improved point estimation algorithm and a new Extended Kalman Filtering attitude estimation algorithm were put forward.

提出了一种改进的单点估计姿态求解算法和一种新的基于EKF姿态求解算法。

In the design of drip irrigation system, the choice of dripper discharge affects the irrigating water quality and the costs of drip irrigation engineer, while the soil moisture uniformity for line source drip irrigation affects crops water use directly, and it is the foundation to design drip irrigation system.

滴灌系统设计中，滴头流量的选择关系到灌水质量和滴灌工程的造价问题；而线源滴灌土壤湿润均匀性问题影响到滴头流量的选择，并直接影响着作物对水分的利用，是滴灌系统设计的基础。