Table 2: Experimental Result of FFT, QSDFT, and VPF.

Theoretical Value   (mA)   (°)
9.853 2.875
VPF Mean 9.852998070 2.874993387
Maximum 9.853049596 2.877338898
Mean Square Error 0.000029936 0.001456036
QSDFT Mean 9.852989073 2.885321323
Maximum 9.853480561 2.949487050
Mean Square Error 0.000265827 0.044159037
FFT Mean 9.853265129 2.803705487
Maximum 9.857960872 3.860644784
Mean Square Error 0.002947592 0.516855959