In the case of low sampling frequency, the frequency spectrum in range may badly be folded if the conventional pulse SAR FS algorithm is used in FM-CW SAR directly, the imaging quality is deteriorated. 在采样率受限的条件下,传统脉冲体制下的FS算法直接应用到FM-CWSAR中来,会引起严重的距离维频谱混叠,导致无法成像。
Very nice, better than last week, he 'd say. Then I would follow into a medley of his favorites, Red River Valley and Home on the Range, and he would drift off to sleep, the newspaper folded on his lap. 他会说,不错,比上星期好,然后我会接着拉他喜欢的曲子红河谷和山上的家。听着听着,他慢慢睡着了,报纸叠在腿上。