To obtain low sidelobe level, tolerance analysis is applied to the antenna array composed by DAUs and the relationship between DAU features and surface planeness error are studied.
为了确保天线低副瓣指标，需要对由DAU拼装形成的天线阵面进行平面度误差分析，并寻求基本拼装单元DAU结构要素与阵面平面度误差之间的联系。
The traditional trial arithmetic and the graphics arithmetic have many disadvantages, especially the tremendous workload, the bad error tolerance and not having the economic analysis ability.
传统的试算法和图解法工作量大，易产生误差，且无法进行经济分析。
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