Fig. 4: Simulation results of modified FFT algorithm with adaptive peak shape correction. | Microsystems & Nanoengineering

Fig. 4: Simulation results of modified FFT algorithm with adaptive peak shape correction.

From: All-sapphire-based high-temperature pressure sensor system with in situ temperature compensation: innovative cavity design, fabrication, and APSC-FFT algorithm

Fig. 4: Simulation results of modified FFT algorithm with adaptive peak shape correction.The alternative text for this image may have been generated using AI.

a Original spectrum, b FFT result of original spectrum, c reinterpolated and windowed FP1 spectrum after filtering, d reinterpolated and windowed FP2 spectrum after filtering, e process of Modified FFT Algorithm, f FP1 spectral FFT comparison: before vs. after peak shape correction, g FP2 spectral FFT comparison: Before vs. after peak shape correction, h calculated L2 value comparison: before vs. after peak shape correction

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