High Resolution Radar Imaging Based on Compressed
Sensing Using Sparse Stepped-frequency Signal
the face of sparse aperture data imaging, a method
for high resolution radar imaging based on compressed sensing
using sparse stepped-frequency signal is proposed in this letter.
In the signal stretching process, high resolution target echo can
be acquired through second sample for the coarse-resolution
range prole. Based on the sparsity of the signal in the
spectrogram, we can construct a reasonable partial fourier
sparse basis matrix to realize the sparsity of radar data. Then,
the high-resolution range prole information is recovered by
using the Orthogonal Matching Pursuit (O) algorithm, and
the high resolution target imaging can be gained whose target
sidelobe is suppressed eciently. Finally, the results with
simulation data validate the feasibility and superiority of the
approach.
k m
(t-mNT -kT )
s(t,k;m) =
T
;