A Doppler Range Compensation for Step-Frequency Continuous-Wave Radar for Detecting Small UAV

Step-frequency continuous-wave (SFCW) modulation can have a role in the detection of small unmanned aerial vehicles (UAV) at short range (less than 1–2 km). In this paper, the theory of SFCW range detection is reviewed, and a specific method for correcting the possible range shift due to the Doppler effect is devised. The proposed method was tested in a controlled experimental set-up, where a free-falling target (i.e., a corner reflector) was correctly detected by an SFCW radar. This method was finally applied in field for short-range detection of a small UAV.

[1]  Ismail Güvenç,et al.  Drones for smart cities: Issues in cybersecurity, privacy, and public safety , 2016, 2016 International Wireless Communications and Mobile Computing Conference (IWCMC).

[2]  D. Plettemeier,et al.  Ultrawideband Gated Step Frequency Ground-Penetrating Radar , 2012, IEEE Transactions on Geoscience and Remote Sensing.

[3]  Massimiliano Pieraccini,et al.  RCS measurements and ISAR images of small UAVs , 2017, IEEE Aerospace and Electronic Systems Magazine.

[4]  Guido Luzi,et al.  A review of ground-based SAR interferometry for deformation measurement , 2014 .

[5]  G. Luzi,et al.  Ground-based SAR for short and long term monitoring of unstable slopes , 2006, 2006 European Radar Conference.

[6]  Carlo Atzeni,et al.  Dynamic Monitoring of Bridges Using a High-Speed Coherent Radar , 2006, IEEE Transactions on Geoscience and Remote Sensing.

[7]  Massimiliano Pieraccini,et al.  Compressive Sensing for Ground Based Synthetic Aperture Radar , 2018, Remote. Sens..

[8]  Massimiliano Pieraccini,et al.  Noise Performance Comparison Between Continuous Wave and Stroboscopic Pulse Ground Penetrating Radar , 2018, IEEE Geoscience and Remote Sensing Letters.

[9]  Yuan Haotian,et al.  Study on radar target imaging and velocity measurement simultaneously based on step frequency waveforms , 2007, 2007 1st Asian and Pacific Conference on Synthetic Aperture Radar.

[10]  Massimiliano Pieraccini,et al.  CWSF radar for detecting small UAVs , 2017, 2017 IEEE International Conference on Microwaves, Antennas, Communications and Electronic Systems (COMCAS).

[11]  Massimiliano Pieraccini,et al.  Microwave sensor for molten glass level measurement , 2014 .

[12]  Raffaele Persico,et al.  A reconfigurable stepped frequency GPR (GPR-R) , 2011, 2011 IEEE International Geoscience and Remote Sensing Symposium.

[13]  G. Gill.  Simultaneous pulse compression and Doppler processing with step frequency waveform , 1996 .

[14]  R. Knochel,et al.  A sub-millimeter accurate microwave multilevel gauging system for liquids in tanks , 2001 .

[15]  Yongxiang Liu,et al.  A new approach for synthesizing the range profile of moving targets via stepped-frequency waveforms , 2006, IEEE Geoscience and Remote Sensing Letters.

[16]  A. W. M. van den Enden,et al.  Discrete Time Signal Processing , 1989 .

[17]  Carlo Atzeni,et al.  In-service testing of wind turbine towers using a microwave sensor , 2008 .