论文标题

使用低成本FPGA的NASA标准,遥测接口的底漆

A Primer for Telemetry Interfacing in Accordance with NASA Standards Using Low Cost FPGAs

论文作者

McCoy, Jake A., Schultz, Ted B., Tutt, James H., Rogers, Thomas, Miles, Drew M., McEntaffer, Randall L.

论文摘要

在发声火箭有效载荷上的光子计数检测器系统通常需要与同步时钟遥测(TM)流进行连接异步输出。尽管可以使用板载计算机来处理,但是有几种低成本的替代方案,包括自定义硬件,微控制器和现场可编程的门阵列(FPGA)。本文概述了如何使用低成本FPGA和最小的自定义硬件实现带有异步平行数字输出的探测器的TM接口(TMIF)。低功耗和高速FPGA可作为商业现成(COTS)产品提供,可用于开发TMIF的主要组成部分。然后,仅需要少量的额外硬件才能进行信号缓冲和级别翻译。本文还讨论了如何使用FPGA和COTS专业数据采集产品在小型实验室设置中使用模拟TM链测试该系统。

Photon counting detector systems on sounding rocket payloads often require interfacing asynchronous outputs with a synchronously clocked telemetry (TM) stream. Though this can be handled with an on-board computer, there are several low cost alternatives including custom hardware, microcontrollers and field-programmable gate arrays (FPGAs). This paper outlines how a TM interface (TMIF) for detectors on a sounding rocket with asynchronous parallel digital output can be implemented using low cost FPGAs and minimal custom hardware. Low power consumption and high speed FPGAs are available as commercial off-the-shelf (COTS) products and can be used to develop the main component of the TMIF. Then, only a small amount of additional hardware is required for signal buffering and level translating. This paper also discusses how this system can be tested with a simulated TM chain in the small laboratory setting using FPGAs and COTS specialized data acquisition products.

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