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A new algorithm for precession parameters extraction of ballistic midcourse target is proposed based on high resolution range profile (HRRP) sequence. This algorithm aims at estimation of precession period and precession angle. To estimate the precession period, an estimation curve is extracted through weighting and calculating the HRRP sequence. Then using nonlinear curve fitting method to fit it...
The range profile of the target will be fuzzy and broadening when the target moves with high speed. In order to improve the effect of imaging, the speed compensation must be conducted. This paper mainly studies the compensation for the range profile of the high speed moving target. To analyze the influence of target's high speed on the range profile, the model of echo for high speed moving target...
The velocity of the ballistic target in midcourse is very high. For wideband LFM signal and ultra-high speed moving target, the signal will have high-order term in its phase after de-chirp processing, which has a bad influence on the target range profile imaging quality. This paper establishes the model of echo for ultra-high speed target, and analyzes the effect of the target's high speed on the...
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