实验结果表明，该方法能够达到较高的测量精度和分辨率，满足岩土地下位移测量要求。
The experimental results show that higher precision and resolution can be achieved by this way, and the requirement of underground displacement can be met.
相位差放大技术(PDA)是干涉测量领域里一种提高相位分辨率和测量精度的手段。
Phase difference amplification (PDA) was proposed as a means of improving phase resolution and accuracy in interferometric measurement.
该方法成本低，测量分辨率和精度都很高。
The cost of this method is very low but its resolution and accuracy are very high.
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