Phase-Code Shift Keyed Probing Signals with Zero Autocorrelation Zone for Ground Penetrating Radar Onboard of Unmanned Aerial Vehicle

摘要

The disadvantage of existing ground penetrating radars (GPR) is that the probing is local in nature from the earth's surface, or, when exploring glaciers, probing is carried out using helicopter-based GPRs mounted on a special platform, which affects the system's performance and increases economic costs. The best solution for air-based GPRs is to use unmanned aerial vehicle (UAV) for their installation. In this work, for a GPR onboard of an UAV, a probing phase-code shift keyed (generally polyphase) signal is synthesized with an extremely low level of side lobes and a sufficiently large base for realizing the required energy potential of the GPR. A comparative analysis of the correlation characteristics of binary and three-phase probing signals (PS) is carried out.