将萨拉托加从天基地面传感器转移到地基空间传感器
Taking Saratoga from Space-Based Ground Sensors to Ground-Based Space Sensors
摘要：
Saratoga传输协议由萨里卫星技术有限公司（SSTL）为其灾害监测星座（DMC）卫星开发。在七年多的运行中，萨拉托加利用因特网协议，通过专用无线链路，从这七颗低轨道卫星向地面站有效地提供了遥感地球观测图像。Saratoga旨在应对高带宽延迟产品，受限的确认通道以及在流式传输或交付超大文件时的高丢失。澳大利亚联邦科学和工业研究组织（CSIRO）现已制定了该协议的实施方案，以供更广泛的使用和测试。这是为了在地面上的专用天文射电望远镜网络中提供数据的原型，其中甚长基线干涉仪（VLBI）仪器中的联网传感器生成大量数据进行处理，并可以通过基于IP和以太网的私有链路以非常高的速率发送这些数据。我们描述了这个新的萨拉托加实现，它的特点和重点是高吞吐量和链路利用率，并在传感器网络应用程序开发此协议的经验教训。
英文摘要：
The Saratoga transfer protocol was developed by Surrey Satellite Technology Ltd (SSTL) for its Disaster Monitoring Constellation (DMC) satellites. In over seven years of operation, Saratoga has provided efficient delivery of remote-sensing Earth observation imagery, across private wireless links, from these seven low-orbit satellites to ground stations, using the Internet Protocol (IP). Saratoga is designed to cope with high bandwidth-delay products, constrained acknowledgement channels, and high loss while streaming or delivering extremely large files. An implementation of this protocol has now been developed at the Australian Commonwealth Scientific and Industrial Research Organisation (CSIRO) for wider use and testing. This is intended to prototype delivery of data across dedicated astronomy radio telescope networks on the ground, where networked sensors in Very Long Baseline Interferometer (VLBI) instruments generate large amounts of data for processing and can send that data across private IP- and Ethernet-based links at very high rates. We describe this new Saratoga implementation, its features and focus on high throughput and link utilization, and lessons learned in developing this protocol for sensor-network applications.
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