Figure 2 | Scientific Reports

Figure 2

From: A new paradigm of reliable sensing with field-deployed electrochemical sensors integrating data redundancy and source credibility

Figure 2

A synthetic dataset. (a) The output voltage of the sensors are generated using Nernst equation26. Unreliable voltage reading is simulated by changing calibration parameters (e.g., thickness, chemical properties) of the sensors during operation and introducing random fluctuations28. Estimated signal by MLE follows the true signal. (b) Each sensor’s change of credibility with time. MLE assigns low credibility index to a sensor when a sensor gives unreliable voltage reading and reassign high credibility index when the signal is restored. (c) Error distribution between estimated and true signal shows error is close to zero in most instances and RMSE is 5.22 mV.

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