Details

Autor(en) / Beteiligte

• Li, Shiyong
• Amin, Moeness
• An, Qiang
• Zhao, Guoqiang
• Sun, Houjun

Titel

2-D Coherence Factor for Sidelobe and Ghost Suppressions in Radar Imaging

Ist Teil von

• IEEE transactions on antennas and propagation, 2020-02, Vol.68 (2), p.1204-1209

Ort / Verlag

New York: IEEE

Erscheinungsjahr

2020

Quelle

IEL

Beschreibungen/Notizen

• The coherence factor (CF) is defined as the ratio of coherent power to incoherent power received by the radar aperture. The incoherent power is computed by the multi-antenna receiver based only on the spatial variable. In this respect, it is a 1-D CF, and thereby the image sidelobes in down-range cannot be effectively suppressed. We propose a 2-D CF by supplementing the 1-D CF by an incoherent sum dealing with the frequency dimension. In essence, we employ both spatial diversity and frequency diversity which, respectively, enhance imaging quality in cross-range and range. Simulations and experimental results are provided to demonstrate the performance advantages of the proposed approach.