摘要
为了科学地评价应用动态 GPS技术鉴别振动特征的能力及可行性 ,本文设计了若干个振动实验。实验数据的谱分析结果表明 ,利用 GPS观测数据可以精确地鉴别出振动特征 ,如相对位移和频率 ,并且当 GPS数据的采样频率为 F时 ,至少可以分辨出约 0 .2 5 F以下的振动频率。
In the paper, some vibrating experiments are designed for the scientific justification and feasibility of using kinematic GPS technology to identify the vibrating characteristics. The spectral analysis results indicate that clear and accurate vibrating characteristics such as relative displacements and frequencies of at least about 0.25F can be derived from GPS observations with sampling frequency F. This capability can be applied to safety monitoring purposes for large structures.
出处
《测绘学报》
EI
CSCD
北大核心
2000年第2期118-123,共6页
Acta Geodaetica et Cartographica Sinica
基金
香港理工大学研究基金项目!( GS-72 1)
关键词
建筑物
GPS
振动变形
实验研究
谱分析
kinematic GPS technology
vibrating characteristic
spectral analysis
