Radar target two-dimensional imaging method based on vortex electromagnetic wave
A vortex electromagnetic wave and radar target technology, which is applied in radio wave reflection/re-radiation, radio wave measurement system, utilization of re-radiation, etc., can solve the problem that OAM radar cannot realize pitch angle imaging, etc., and achieve high angle imaging resolution Effect
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[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.
[0032] The two-dimensional imaging method of the radar target based on the vortex electromagnetic wave proposed by the present invention, the specific embodiments are as follows:
[0033] The uniform loop antenna array is composed of Q=8 antennas, and an antenna is placed at the center of the array to receive the scattered echo signal of the target, and the transmitted signal s(t)=cos(2πf c t), signal frequency f c =2.4GHz, the corresponding wavelength λ=0.125m, and the array radius is d=10λ. The radar target is composed of M=2 ideal scattering points, and the position of each scattering point in the radar observation coordinate system can be expressed as Radar observation coordinate system such as figure 1 shown, specific
[0034]
[0035]
[0036] The scattering intensity σ of the scattering point 1 =1, σ 2 =1.
[0037] ...
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