SAR-GMTI Clutter Suppression Method in the Descending Section of a Hypersonic Vehicle
A hypersonic and clutter suppression technology, applied to instruments, radio wave measurement systems, etc., can solve problems such as strong ground clutter, difficulties in tracking, imaging and identification, and complex radar motion states, achieving a wide range and benefiting the battlefield The effect of reconnaissance
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[0022] refer to figure 1 , is a flow chart of a method for suppressing SAR-GMTI clutter in the descending section of a hypersonic vehicle of the present invention; the method for suppressing SAR-GMTI clutter in the descending section of a hypersonic vehicle comprises the following steps:
[0023] Step 1, establishing the radar motion geometric model of the hypersonic vehicle descending section, in the radar motion geometric model of the hypersonic vehicle descending section, the radar includes N antenna channels, P is any moving target in the scene where the radar is located, and The instantaneous slant distance between the nth antenna channel and the moving target P is expressed as R n (t a ); where, n∈{1,2,…,N}, N represents the number of antenna channels contained in the radar in the radar motion geometric model of the hypersonic vehicle descent, t a Indicates the azimuth slow time.
[0024] Specifically, refer to figure 2, is the radar motion geometric model diagram o...
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