实验结果表明，改进算法的运算量较小，定位精度较高。

Simulation result shows that improved algorithm has higher localization accuracy and smaller computation.

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传感器网络由于资源受限，定位算法需要综合考虑定位精度，网络构建成本，通信、计算开销等多方面因素。

Because of restricted resources, localization algorithms in wireless sensor network need to consider location accuracy, price of network and costs of communication and computing in general.

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时间测量误差对算法的定位精度影响较小。

The time measure error has a little effect on the localization accuracy.

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