The key issues of single frequency network technology includes network planning, networking mode, performance of overlapping coverage of the reception area, and program distribution network and so on.

其中单频网技术的关键问题主要包括单频网的网络规划、单频网的组网模式、覆盖重叠区的接收性能以及单频网中的节目分配网络等等。

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Distribution network planning is a nonlinear mixed integer program problem which is usually difficult to be solved by conventional optimization algorithm.

配电网络规划属于非线性混合整数规划问题，应用传统数学优化算法往往难以直接求解。

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Under this mode, program must resolve the distribution, heterogeneous under environments of network and the interoperability between applications.

这种方式的编程必须解决网络环境下分布异构和互操作问题。

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