Efficient MTD processing method based on conjugate symmetric structure
The invention relates to an efficient MTD processing method based on a conjugate symmetric structure, and belongs to the field of radar signal processing, and the method comprises the steps: calculating a pilot frequency vector corresponding to each Doppler frequency, and calculating a windowing equ...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to an efficient MTD processing method based on a conjugate symmetric structure, and belongs to the field of radar signal processing, and the method comprises the steps: calculating a pilot frequency vector corresponding to each Doppler frequency, and calculating a windowing equivalent filter coefficient; according to the pilot frequency vector, a conjugate complex number symmetric pilot frequency vector matrix is constructed by using frequency symmetry, and a conjugate complex number symmetric FIR digital filter coefficient matrix is obtained; the interference covariance matrix R is utilized to invert and match clutters, and correction of the FIR filtering weight coefficient is completed; a memory block pipeline architecture is carried out by utilizing a Harvard structure characteristic improved by a DSP (Digital Signal Processor), and an FIR filter operation step is reconstructed according to a conjugate complex number symmetry characteristic of an FIR filter, so that the calculation am |
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