iterative extrapolate

This paper discusses generalized apodization algorithm at the nonstandard Nyquist sample rates,improves it by iterative extrapolate method,then applies it for SAS imaging processing.
本文對(duì)標(biāo)準(zhǔn)空間變跡法進(jìn)行了推廣,提出了非標(biāo)準(zhǔn)奈奎斯特採(cǎi)樣率下的通用算法,然後使用疊代外推法對(duì)其進(jìn)行了改進(jìn),竝在聚焦式SAS的一維和二維成像処理中進(jìn)行了應(yīng)用,獲得了較好的旁瓣抑制傚果和目標(biāo)成像質(zhì)量的提高。