Effect of Conductivity on Beat Frequency Detection in Chirp Pulse Transmission Imaging

Permittivity estimation using chirp pulse transmission imaging (CPTI) is a novel method that requires further investigation to fully understand the effects of different parameters on its accuracy. This paper specifically examines the influence of conductivity on the detection of the beat frequency corresponding to the direct path through the object, a key factor that directly impacts the accuracy of permittivity estimation. The results demonstrate that, while the estimation equation is independent of conductivity, conductivity does affect the magnitude of the mixed signal in the frequency domain. These findings highlight the robustness of chirp pulse transmission imaging approach for accurate permittivity estimation across varying conductive environments.