高能粒子探测器低能段载荷数据处理系统设计

发布时间：2018-05-20 12:15

本文选题：高能粒子探测器 + 低能段载荷　；参考：《成都理工大学》2016年硕士论文

【摘要】：地震带给人民和社会带来的危害是不可预估的,对地震的有效预报已经成为各个国家亟待解决的问题之一。在空间带电粒子探测方面,全球的实验观测取得了很大的进展:首先是俄罗斯的MARIYA空间探测器发现了高能粒子暴可能与地震的产生有关联。MARIYA探测器发现高能粒子暴经常出现在地震发生前的几十分钟到几个小时。而后此现象陆续被GAMMA和SAMPEX(PET)等卫星证实。粒子暴作为地震潜在的确定性这一现象吸引了国内外地震研究专家的高度关注。电磁监测试验卫星(ZH-1)是我国首颗与地震探测相关的卫星。高能粒子探测器是电磁监测试验卫星的有效载荷之一,目的在于研究500公里卫星轨道高度上各种因素导致的空间带电粒子通量或能谱变化的规律,同时寻找可能与地震有关的空间带电粒子暴,并研究其特征参数和变化规律。由于所测能区范围较宽,所以探测器分为低能段载荷和高能段载荷,分别实现不同能区范围的测量。高能粒子探测器低能段载荷目的是对低能区粒子实现高精度测量,实现质子2-20MeV,电子0.1-3MeV的测量。低能段载荷中数据处理系统是载荷的子系统之一,是电子学的重要组成部分,主要负责对打入探测器内的粒子能量进行采集及处理,控制探测器工作状态并实现对一些参量的监测,以及完成将粒子能量和其他参量形成的不同数据传递给数管系统的任务。本文主要介绍了对低能段载荷数据处理系统的研制过程和具体实现,主要包括:1.通过对高能粒子探测器低能段载荷功能极其性能的研究,并结合探测器部分的结构和特点,制定了数据处理系统的所要达到的功能参数和性能。2.在数据处理系统硬件设计阶段,完成了系统功能模块的划分,电路的搭建。通过阅读航天规范和航天禁限工艺,并结合探测器特点完成了原理图和PCB的设计。3.在数据处理系统软件设计部分,完成了软件部分功能模块的划分,通过阅读芯片数据手册以及按照航天代码的设计规范编写了软件代码,实现了对芯片的时序控制以及完成了内部逻辑的实现,并完成了每个模块的仿真,为其在实际电路工作中奠定了基础。4.在测试阶段,完成了对硬件芯片的测试,软件逻辑的测试,并且完成了系统级的测试,进行了与其他系统的联调测试,验证数据处理系统的功能和性能。测试覆盖了整个探测器的功能。高能粒子探测器低能段载荷数据处理系统的研制和设计工作目前已经满足低能段载荷对数据处理系统的要求,硬件电路和软件代码已经基本定型,为系统转正样件提供了坚实的基础。同时也为其他数据处理系统提供经验和参考。
[Abstract]:The harm that earthquake brings to people and society is unpredictable, and the effective prediction of earthquake has become one of the problems to be solved urgently in every country. In space charged particle detection, Great progress has been made in global experimental observations: first, Russia's MARIYA space probe has discovered that high-energy particle bursts may be associated with the occurrence of earthquakes. The MARIYA detector found that high-energy particle bursts often occur before earthquakes occur. Dozens of minutes to a few hours. This phenomenon has since been confirmed by satellites such as GAMMA and SAMPEXPet. As a potential certainty of earthquake, particle burst has attracted great attention of seismic researchers at home and abroad. ZH-1 is the first satellite related to seismic detection in China. The high-energy particle detector is one of the payloads of the electromagnetic monitoring test satellite, the purpose of which is to study the variation of the flux or energy spectrum of charged particles in space caused by various factors at the altitude of the satellite orbit of 500 km. At the same time, the space charged particle bursts which may be related to earthquakes are searched, and their characteristic parameters and variation laws are studied. Because of the wide energy range, the detector can be divided into low energy section load and high energy band load. The purpose of the high energy particle detector is to measure the particles in the low energy region with high precision, and to measure the protons at 2-20 MeV and the electron 0.1-3MeV. The data processing system is one of the subsystems of the load in the low energy section. It is an important part of electronics. It is mainly responsible for collecting and processing the energy of particles in the probe. It controls the working state of the detector, monitors some parameters, and accomplishes the task of transferring different data formed by particle energy and other parameters to the multitube system. This paper mainly introduces the development and implementation of the data processing system for low energy load, including: 1. Based on the study of the function and performance of the high-energy particle detector in the low energy section, and combining the structure and characteristics of the detector, the functional parameters and performance of the data processing system are established. In the phase of hardware design of data processing system, the partition of system function module and the construction of circuit are completed. By reading the spaceflight specification and spaceflight interdiction process, the schematic diagram and the design of PCB. 3 are completed in combination with the characteristics of the detector. In the software design part of the data processing system, the partition of the function modules of the software is completed, and the software code is written by reading the data manual of the chip and according to the design specification of the aerospace code. The timing control of the chip and the realization of the internal logic are realized, and the simulation of each module is completed, which lays a foundation for the actual circuit work. 4. In the testing stage, the hardware chip test, software logic test, system-level test are completed, and the joint test with other systems is carried out to verify the function and performance of the data processing system. The test covers the entire function of the detector. The development and design of data processing system for low energy segment load of high energy particle detector has met the requirements of data processing system for low energy segment load at present, and the hardware circuit and software code have been basically finalized. It provides a solid foundation for the system transposition. At the same time, it also provides experience and reference for other data processing systems.
【学位授予单位】：成都理工大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P315.7

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