The multi-phase-shifts fiber grating with cascadephase-shifts can be used as bandwidth filter and its bandwidth can be widened by increasing cascade numbers.
相移级联光栅可用作带宽滤波器，通过增加相移光栅的级联数增加带宽。
2
Zaohe pumping station, locating at the north Zaohe County, Suqian City of Jiangsu Province, is one of the sixth cascade pumping stations in South-to-North Water Transfer East Line Project, Phase I.
皂河泵站是南水北调东线第一期工程的第六梯级泵站之一，位于江苏省宿迁市皂河镇北。
3
A new kind of binary phase codes two frequency cascade PN intercepted codes (TFCPIC) is presented, and its signal processing is also discussed in detail.