| 单参数快速搜索BP算法在GPS高程拟合中的应用 |
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| 引用本文： | 刘红新,岳东杰. 单参数快速搜索BP算法在GPS高程拟合中的应用[J]. 工程勘察, 2003, 0(1) |
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| 作者姓名： | 刘红新 岳东杰 |
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| 作者单位： | 河海大学土木工程学院 江苏南京210098(刘红新)，河海大学土木工程学院 江苏南京210098(岳东杰) |
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| 摘 要： | 利用GPS测量技术可以获取GPS点高精度的三维坐标B、L、H ,经坐标转换可获得用户需要的坐标 ,在这一方面已获得广泛应用。为了满足工程的需要 ,需将GPS中的大地高H转换为工程中可直接应用的正常高 ,以充分利用GPS定位信息。本文将一种基于单参数坐标轮换法的改进BP算法应用于GPS高程拟合 ,并通过实例计算分析 ,得出该算法不仅寻优方向性强 ,目标函数计算量小 ,而且使BP网络的收敛速度明显提高。
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| 关 键 词： | 神经网络 BP算法 单参数 高程拟合 GPS |
The Application of BP Algorithm of Single Parameter Quick Search in GPS Height Interpolation |
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| Liu Hongxin et al.. The Application of BP Algorithm of Single Parameter Quick Search in GPS Height Interpolation[J]. Geotechnical Investigation & Surveying, 2003, 0(1) |
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| Authors: | Liu Hongxin et al. |
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| Affiliation: | Liu Hongxin et al. |
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| Abstract: | The precise three dimension coordinate B,L,H can be obtained with GPS technique. It must be transformed into users needed coordinates, which has been applied widely in this field. In order to meet the demand of applications, the ellipsoidal height of GPS has to be converted into the normal one. The single parameter quick search method, an improved BP algorithm based on single parameter coordinate rotated method, is presented in this paper, and applied to GPS height interpolation. The case study shows that it not only has a definite orientation in optimization and time saving in computation, but also makes the convergent speed of BP network rapidly. |
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| Keywords: | BP algorithm single parameter height interpolation |
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