approximate coordinates

基本解释

We derived an approximate algorithm from geocentric to geodetic coordinates. The algorithm is very simple, but its accuracy can satisfied general geo-science research.
給出了一種由地心坐標到大地坐標的近似算法，這種算法非常簡單，但它的精度可以滿足一般地學研究的需要。
www.eq-gc1.com
When locating the seismic work area, the rectangular vertexes on the computer screen showed only the approximate coordinates from which the accurate figures had to be deduced.
在確定地震工區位置時，用鼠標在計算機屏幕上點出的矩形頂點衹是近似值，需要根據這些近似值求出工區矩形頂點的精確值。
Analysis and examples show that using this method to estimate the approximate coordinates, the accuracy is obviously improved comparing with the approximate coordinates provided by GPS.
理論分析和實例表明，該方法確定的運動載躰近似坐標與GPS絕對定位提供的近似坐標相比，精度有明顯的提高。