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A Landslide Monitoring Technique Based on Dual-Receiver and Phase Difference Measurements

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1 Author(s)
Bu-Chin Wang ; Summit Micro Design, Inc., San Jose, CA, USA

A new landslide detection technique that installs a transmitter (Tx) array at the area of interest to transmit signals to two receivers is presented. It detects the phase difference change, due to the Tx displacement, at the dual-receiver system to monitor near real time of small but critical area landslide in centimeter range. The dual-receiver system, apart at a small distance, demodulates the receiving signals independently but coherently. An ambiguity route, which corresponds to a landslide's movement without change on phase difference, is defined and must be avoided. No field test was tried, but three simulated examples are given to illustrate the technique.

Published in:

Geoscience and Remote Sensing Letters, IEEE  (Volume:10 ,  Issue: 5 )

Date of Publication:

Sept. 2013

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