摘要
针对土地利用变化测绘存在技术及数据处理的问题,研究了BDS与GPS多系统融合在土地利用变化测绘中的应用,旨在通过提高定位精度和可靠性,为土地利用变化测绘提供更加准确的数据支持.选取了广东省某森林公园作为研究区域,分别在阔叶林和针叶林中进行了实地试验.通过采用BDS/GPS整合定位算法,对比单独使用GPS定位算法,评估其在复杂森林环境中的定位精度.研究结果表明:BDS/GPS整合定位在高冠层密度的森林区域能够显著提高定位精度,提供了比单独使用GPS更可靠的测绘数据,适用于精细化的土地利用变化监测和管理.
Abstract
In response to the technical and data processing issues in land use change surveying,the application of BDS and GPS multi-system integration in land use change surveying was studied.It aims at providing more accurate data support for land use change surveying by improving positioning accuracy and reliability.A forest park in Guangdong Province was selected as the research area and field experiments in both broad-leaved and coniferous forests were conducted.By using BDS/GPS integrated positioning algorithm and comparing it with GPS positioning algorithm alone to evaluate its positioning accuracy in complex forest environments.The research results indicate that BDS/GPS integrated positioning can significantly improve positioning accuracy in forest areas with high canopy density and provide more reliable surveying data than using GPS alone,and also be suitable for refined land use change monitoring and management.
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