Improved GHI - LFM Algorithm Based on Coherence Factor

Abstract

In this paper, the recently indigenously developed millimeter-wave imaging (MMWI) algoritthm GHI-LFM, namely general holographic imaging (HI) algorithm based on linear frequency modulation (LFM), is further improved by using coherence factor (CF), called GHI-LFM-CF. The new method can suppress the Gibb's effect in k-space, resulting in very clean background. The superior performance is validated by imaging using both synthetic and experimental data of benchmark objects.