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介绍了应用InSAR技术监测矿区地表沉降以及地下开采活动的原理;利用重轨差分InSAR技术获得了峰峰矿区地表ENVISAT和JERS 1的雷达形变干涉相位图;分析了在矿区地表沉降过程中ENVISATC波段和JERS 1 L波段形变干涉相位图的相干特性、相位特性以及干涉测量技术在矿区地表沉降监测中应用的可行性和局限性。实验结果表明,利用C波段和L波段雷达数据可以实施对矿区地表沉降的监测,但是C波段雷达受到空间干涉基线的限制更加严格,如果要实现对矿区地表沉降的监测,需要充分利用每个卫星回访时期的雷达数据,建立长时序的星载雷达形变干涉相位图序列,才能较好地实现矿区地表沉降监测。
The principle of using InSAR technology to monitor the surface subsidence and underground mining activities in the mining area is introduced. The radar deformation phase diagram of ENVISAT and JERS 1 on the surface of Fengfeng mine area is obtained by using the InSAR differential-rail differential technique. Coherence Characteristics and Phase Characteristics of JERS 1 L Waveform Deformation Interference Phase Diagrams and the Feasibility and Limitations of Interferometry Used in Surface Subsidence Monitoring in Mining Areas. The experimental results show that the C-band and L-band radar data can be used to monitor the surface subsidence of the mining area. However, the C-band radar is more restricted by the space interference baseline. If it is necessary to monitor the surface subsidence in the mining area, it is necessary to make full use of each satellite The radar data of the retrospective period and the establishment of a long sequence of deformation sequence of the satellite-borne radar deformation can the surface subsidence monitoring of the mining area be well realized.