代表性误差

根据淮南市某测区GPS网中公共点的高程异常，建立测区的似大地水准面的数学模型，从不同角度对模型的代表性误差进行了评价。

Based on the elevation anomaly of the common points in the GPS net in certain area of Huainan city , this paper establishes the mathematical model of the quasigeoid in the survey area , and assesses the representative error of the model from various angles .

在山区，温度代表性误差是影响光电测距精度的主要因素。

Representative error of temperature is main factor to affect precision of EDM in a mountainous area .

为此，人们采取轮换样本的做法，来减少代表性误差。

Therefor , people adopts exchange sample modus , win reduce sampling error .

住房价格统计中的样本代表性误差及其修正

Sample error in housing price statistics and its adjustments

在实际应用中，虽然还采用经验对流层延迟模型对该误差进行改正，但这些模型都需要输入气象参数，而且受气象代表性误差的影响，实际改正精度不高。

In practical applications , empirical tropospheric delay model which need to enter the meteorological parameters is used to correct the errors , but the errors of the meteorological representativeness is introduced , so the accuracy of actual correction is not high .

虽然，通常光电测距仪的内符合精度高，但受气象代表性误差的影响，使其外符合精度降低，因此类似于系统误差的气象代表性误差大大降低了观测边的精度。

Generally the photo-electrical distance survey equipment has a high inside precision , but it is affected by typical weather error so that the outside precision is decreased , and this weather error similar to systematic error greatly decreases the viewing side precision .