PMC

Envelopes of the direct signal (DS) and multipath signals (MS1, MS2, MS3) reflected from the ground, overlapping in time, and reaching UAV2 (shown in ) (a), and temporary angle of arrival φ estimated from the received resultant signal (b), (radar transmits simple long pulsed signal with duration t_i = 4 μs, and initial phases Φ_0D = Φ₀₁ = Φ₀₂ = Φ₀₃ = 0°; AOA was estimated using the monopulse phase method from the DF device installed on UAV2).

Envelopes of the direct signal (DS) and multipath signals (MS1, MS2, MS3) reflected from the ground, overlapping in time, and reaching UAV1 (shown in ) (a), and temporary angle of arrival φ estimated from the received resultant signal (b), (radar transmits simple long pulsed signal with duration t_i = 4 μs, and initial phases Φ_0D = Φ₀₁ = Φ₀₂ = Φ₀₃ =0°; AOA was estimated using the monopulse phase method from the DF device installed on UAV1).

Envelopes of the direct signal (DS) and multipath signals (MS1, MS2, MS3) reflected from the ground, overlapping in time, and reaching UAV1 (shown in ) (a), and temporary angle of arrival φ estimated from the received resultant signal (b), (radar transmits simple long pulsed signal with duration t_i = 4 μs, and initial phases Φ_0D = Φ₀₁ = Φ₀₃ =0, Φ₀₂ = 180°; AOA was estimated using the monopulse phase method from the DF device installed on UAV1).

Envelopes of the direct signal (DS) and multipath signals (MS1, MS2, MS3) reflected from the ground, overlapping in time, and reaching UAV2 (shown in ) (a), and temporary angle of arrival φ estimated from the received resultant signal (b), (radar transmits simple long pulsed signal with duration t_i = 4 μs, and initial phases Φ_0D = Φ₀₁ = Φ₀₃ =0, Φ₀₂ = 180°; AOA was estimated using the monopulse phase method from the DF device installed on UAV2).