Aiming at the error in intense hypsography terrain area statistic, the paper puts forward an improved statistic method for intense hypsography terrain, and introduces their application fields.
Check on the real power output in 1991, published by National Statistic Bureau, the relative error is 1.488%.
核对最近国家统计局公布的1991年发电量达到的实际值，其相对误差为1.488%。
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Then, we analyze the errorstatistic model when using TDOA to locate, discuss the statistic character of error distribution when using multi-phones location.