Abstract: Marine fishery acoustic equipment plays an important role in the accurate detection and efficient fishing of marine fishery, and the improvement of its key technologies is of great importance to the improvement of equipment performance. This paper analyzed the research status of key technologies of marine acoustic equipment at home and abroad, the research progress of key technologies of single-beam, dual-beam, split-beam and multi-beam is discussed, and the significant progress of key technologies of multi-beam, multi-frequency and wide-band in marine acoustic equipment in recent ten years is emphasized. The research shows that the key technology of acoustic equipment in domestic fishery has advanced, but there is still a big gap with the advanced technology in foreign countries. Finally, the future development of the key technology of acoustic equipment in domestic fishery is prospected.

Key words: fishery acoustic equipment, multi-beam, multi-frequency, wide-band, research progress

摘要： 海洋渔业声学装备在海洋渔业精准探测、高效捕捞中有着重要应用，其关键技术的改进对于装备性能提升至关重要。本研究分析了海洋渔业声学装备关键技术国内外研究现状，论述了单波束、双波束、分裂波束和多波束关键技术的研究进展，并重点阐述了近十年来多波束、多频和宽带关键技术在海洋渔业声学装备方面取得的重大进展。研究表明，国内渔业声学装备关键技术虽取得了一定进展，但与国外先进技术还存在较大差距，文章最后对国内渔业声学装备关键技术未来发展进行了展望。

关键词: 渔业声学装备, 多波束, 多频, 宽带, 研究进展