SBIR Phase II: Broadband Split-Beam Fish Tracker

该小型企业创新研究（SBIR）第二阶段项目将开发一种用于浅水应用的宽带分束渔业声纳系统。由于河流和溪流中的鱼类数量减少，并受到威胁，濒临灭绝或灭绝，因此需要更好的鱼类监测工具来监测这种浅水环境。通过一系列讲习班，河流声纳界的领导人强调了目前监测系统的几个缺陷。该第二阶段项目建议建立一个鱼类跟踪和计数系统，以解决这些缺陷中的许多问题，并具有十倍的距离分辨率和至少6 dB的检测改进。将在本项目过程中建造的宽带声纳系统将包括：（a）一个独特的双区遮蔽收发器阵列;（B）一整套收集、储存、分析和显示数据的功能;（c）一个多假设跟踪器，用于在低信噪比和密集目标环境中跟踪鱼类。声纳系统将首先在一系列全面的水池测试中进行验证，然后在阿拉斯加的基奈河和库珀河以及俄勒冈州的罗格河进行一系列严格的评估实验。该项目的商业应用广泛，需要鱼类计数和跟踪设备。据估计，全世界此类设备的总市场规模约为18亿美元。

This Small Business Innovation Research (SBIR) Phase II Project will develop a broadband split-beam fisheries sonar system for shallow water applications. As the number of fish in rivers and streams diminishes and becomes threatened, endangered or extinct, there is a need for better fish monitoring tools for such shallow water environments. Through a series of workshops, the leaders in the riverine sonar community have highlighted several deficiencies in the current monitoring systems. This Phase II Project proposes to build a fish tracking and counting system that addresses many of these deficiencies, and that has a ten-fold better range resolution and at least a 6 dB improvement in detection. The broadband sonar system, to be built in the course of this project, will include (a) a unique bizonal shaded transceiver array, (b) a full complement of functions for collection, storage, analysis and display of data, and (c) a multi-hypothesis tracker for tracking fish in low SNR and dense target environments. The sonar system will be validated first in a comprehensive set of pool tests, and then subjected to a rigorous set of evaluation experiments in the Kenai and Copper Rivers of Alaska and in the Rogue River of Oregon.The commercial applications of this project are in a broad range of markets that require fish counting and tracking equipment. The overall market size for such equipment worldwide is estimated to be on the order of 1.8 billion dollars.