Fabrication of a New Type Doppler Current Profiler

这个海洋科学仪器开发项目是斯克里普斯海洋学研究所和阿马特克公司Straza分部之间的合作成果。该项目的目标是开发、构建和测试一个新的软硬件系统，用于声学多普勒电流分析。它将包括修改现有的安装在许多商业船只和研究船上的阿马特克多普勒速度日志。新系统将利用先进的大规模集成电路芯片技术，为IBM AT兼容计算机提供新的外围卡和软件，并且所有开发的软件都将对用户开放。获得的知识将属于公共领域。Amatek将提供一个多普勒接收链模块板和两个数字信号处理板。斯克里普斯公司的人员将监督软件开发，选择最佳信号处理算法，并准备文档手册。声学多普勒水流剖面仪已成为研究船舶航道下水流运动和循环的重要工具。这些设备对学术研究人员来说相对较新，但代表了科学家研究海洋环流能力的重大进步。在信号处理电子学和多普勒声纳理论方面仍在取得迅速进展，有人认为，目前大多数以研究为导向的商业系统落后于可获得的技术。此外，对硬件和软件的限制使科学家无法修改信号处理算法，以充分利用现有数据。这个项目的成功完成将进一步提高科学家使用这项新技术的能力。

This Ocean Sciences Instrumentation development project is a collaborative effort between Scripps Institution of Oceanography and Amatek Corporation, Straza Division. The project's goal is to develop, build and test a new system of hardware and software for acoustic Doppler current profiling. It will involve modifi- cations to existing Amatek Doppler speed logs that are installed on numerous commercial ships and research vessels. The new system will make use of advances in LSI chip technology, the availability of new peripheral cards and software for IBM AT compatible computers and all developed software will be access- ible to the user. Knowledge gained will be in the public domain. Amatek will provide a Doppler receiver chain module board and two digital signal processing boards. Scripps personnel will oversee software development, the selection of optimal signal processing algorithms, and preparation of documentation manuals. Acoustic Doppler Current Profilers have become important tools to derive the movement and circulation of water under a ship's path. These devices are relatively new to academic researchers, but represent a major advance in scientists' ability to study ocean circulation. Rapid advances are still being made in signal processing electronics and Doppler sonar theory and it is suggested that most research-oriented, commercial systems now available, lag behind procurable technology. Also, restricted access to hardware and software preclude the scientist from being being able to modify signal processing algorithms to make best use of available data. Successful completion of this project will further scientists' ability to use this new technology.