Where the noise comes from?
\[\frac1{T_{true}(z,t)}=\frac1{T_{DTS}(z,t)}+c(t)+\int_0^z\delta\alpha(u)du+\varepsilon(x,t)\]c(t) is instrument offset bias, the integration is differential attenuation bias and the \(\varepsilon\) is random noise.
Offset correction term
We could calculate the average value of the measurement residual at all depth, using it to estimate the offset correction term. \(T_c(z,t) = T_0(z,t) -c(t)\)
The linear correction
Temperature residual after linear correction is really close to the temperature residual after temperature reciprocal correction, so we do not have to apply the reciprocal correction, which will bring extra calculation.
文档信息
- 本文作者：Shenyao Jin
- 本文链接：https://shenyaojin.github.io/2022/09/02/DTS-bias/
- 版权声明：自由转载-非商用-非衍生-保持署名（创意共享3.0许可证）