Reconfigurable architectures for Scientific GNSS instruments and space receivers

现在有许多不同的全球导航卫星系统（GNSS），区域增强卫星以及地面伪卫星正在使用。每一个都有一组复杂的信号，需要在硬件中使用不同的方法来处理。GNSS接收机的采集单元在使用硬件资源（内存和逻辑）来支持多种信号类型方面可能非常低效。在GNSS反射测量（GNSS- r）应用中，使用与采集单元类似的结构来创建反射GNSS信号的延迟多普勒图。这种结构在支持多种GNSS信号类型时效率非常低。这个项目背后的想法是使用动态FPGA（现场可编程门阵列）重新配置，以最大限度地有效利用硬件资源，提高仪器的能力。fpga在GNSS- r仪器和空间GNSS接收机中得到广泛应用。该项目的重点将是支持伽利略信号，以便有效地实现GNSS-R和采集单元。该项目将实现更大的仪器功能（支持更多信号），同时具有成本效益、效率和低功耗。

There are now many different Global navigation satellite systems (GNSS), regional augmentations as well as ground-based pseudolites being used. Each of these has a complex set of signals which require different approaches to process in the hardware. The acquisition unit of a GNSS receiver can be very inefficient in its use of hardware resources (memory and logic) to support multiple signal types. In GNSS reflectometry (GNSS-R)applications, a similar structure to the acquisition unit is used to create a delay Doppler map of reflected GNSS signals. This structure is very inefficient when supporting multiple GNSS signal types.The idea behind this project would be to use dynamic FPGA (Field Programmable Gate Array) reconfiguration to maximise the efficient usage of hardware resources and improve the capabilities of the instruments. FPGAs are in common use in GNSS-R instruments and space GNSS receivers. The focus of the project would be on supporting Galileo signals for efficient implementations of GNSS-R and acquisition units. This project willenable greater instrument capabilities (support of more signals) while being cost effective, efficient and low power.