DVB‐T based passive radar for simultaneous counter‐drone operations and civil air traffic surveillance

Tackling the different target dynamics issues in counter drone operations using passive radar

“…As an example, we simulate a typical scenario composed by three different targets, whose echoes are received with very different SNR values as to simulate different sized objects. Note that the adopted SNR values are in line with the ones corresponding to big aircraft and small drones in DVB-T based PR, as shown from the theoretical analysis in [9]. Specifically, in the considered example, the receiver is located in the origin of the axes, the transmitter position is P TX = [-5 km, 0] T and each of the three point-like targets moves with constant velocity so that its position can be described by the linear law P TGT (t) = P TGT (0) + • t, t ∈ [-T/2, T/2], denoting T as the employed CPI.…”

“…Simultaneously, other peaks are visible in the enlarged view figure, among which the highest one at position [4.88 km, 5.6 m/s] is received with a SNR = 31.53 dB. In addition, a number of other peaks are visible in the map which, as reported in [9], are likely to correspond to other targets moving on the monitored area, e.g. cars, small aircraft as well as birds.…”

“…The reported results have demonstrated that such sensors could be effectively employed for detecting and localizing small and medium drones up to a few kilometers from the PR receiver. Moreover, the results in [8]- [9] have shown the effectiveness of the considered sensor in airport surveillance for simultaneous detection of drones flying near the airport area as well as the typical civil aircraft al farther ranges.…”

“…The potential of a DVB-T based PR for counter drones operations has been recently investigated by different authors [5]- [9]. The reported results have demonstrated that such sensors could be effectively employed for detecting and localizing small and medium drones up to a few kilometers from the PR receiver.…”

Parameter Estimation for Coherent Passive MIMO Radar with Unknown Signals under Direct Path Influence

“…Having attracted significant attentions, passive radar networks [1], [2], [3] utilize existing signals of opportunity [4], [5], [6], [7], [8], [9] as illuminators to detect, classify targets, and estimate their parameters. When several illuminators of opportunity and receive stations are employed, multiple-input multiple-output (MIMO) technology [10], [11], [12], [13], [14] applies.…”