Mathematical Problems in Engineering / 2013 / Article / Fig 3

Research Article

Delay Pressure Detection Method to Eliminate Pump Pressure Interference on the Downhole Mud Pressure Signals

Figure 3

Reconstruction of mud pressure DPSK signal.
797549.fig.003a
(a) Signal waveform after delay pressure detecting
797549.fig.003b
(b) Reconstructed signal of mud pressure DPSK signal with time-domain differential equation
797549.fig.003c
(c) Reconstructed signal of mud pressure DPSK signal based on inverse Fourier transform

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