Transmit beam control in low-altitude slow-moving small targets detection

A Software-Defined Radar for Low-Altitude Slow-Moving Small Targets Detection Using Transmit Beam Control

“…Nowadays, low-altitude slow-moving small (LSS) targets, which fly at altitudes less than 1000 m with speeds less than 55 m/s and a radar crossing-section (RCS) less than 2 m 2 [1], pose a severe threat to public safety and personal privacy [2]. In response to the potential threat of LSS targets, all kinds of sensors, including acoustic sensors [3,4], infrared cameras [5,6], and radars [7,8], have been comprehensively studied.…”

“…Abdulrazaq developed a smallscale digital array radar capable of detecting a slow-moving and small RCS UAV at a relatively long range, which produced the desired beam by summing the output [9]. Xu proposed a transmit beam control algorithm for phased array radar, which considered several practical requirements simultaneously, including robustness against the array error, main lobe loss minimization, and sidelobe suppression on the ground side [1]. Wan proposed an anti-jamming robust adaptive beamforming algorithm in FDA-MIMO radar.…”

Transmit Beam Control in Low-Altitude Slow-Moving Small Targets Detection Based on Peak to Average Power Ratio Constraint

“…At present, low-altitude, small, and slow-moving (LSS) targets are defined as flying at an altitude less than 1000 m, with a flying speed less than 55 m/s, with a radar cross-section (RCS) less than 2 m 2 [1]. The ground clutter obeys different probability distributions, so that the echo received by the radar will be overwhelmed by the clutter.…”

“…Therefore, in radar, the energy constraint is a constraint that cannot be ignored. In [1], Xu proposed a constant modulus to deal with the peak to average power ratio (PAPR). This method achieved PAPR of 1 by directly normalizing the optimal weighting vector after solving a SOCP problem.…”