伽马射线监视器是SVOM卫星上的大面积、大视场、高探测效率的探测器载荷,主要完成硬X射线、软伽马射线的能谱观测和伽马暴触发.数据管理系统是其重要的组成部分,负责载荷的遥测和遥控,进行探测器科学数据星上的预处理和管理,在轨实时产生伽马暴触发、光变曲线等信息进行快速下传,对伽马暴联合观测和精确定位分析具有重要的意义.文章介绍了伽马射线监视器数据管理系统的物理需求,以现场可编程门阵列和单片机为核心的系统设计方案,以及数据预处理和管理的软件实现方法.各项测试结果表明,伽马射线监视器数据管理系统运行稳定,功能和性能都达到了预期的设计指标.

为了满足向SVOM卫星GRM载荷输出不同能谱和时间间隔分布的γ射线脉冲信号序列需求,设计了一种GRM探头模拟器,它可以根据已知的脉冲序列文件,模拟输出每个探头的脉冲信号.经过测试.该模拟器运行良好,为GEB软件功能测试以及性能验证提供了可靠的数据源.

The design and implementation of main control system of polarimeter (POLAR) which is to measure the polarization of gamma-ray burst were described .As the important part of POLAR ,this system consists of control unit and low power supply unit ,and it is responsible for POLAR's power supply ,data management and system control .Based on the isostructural and redundant design ,the compactness and reliabili-ty of the main control system were enhanced .The test results show that this system can meet the design requirements and works normally and stably .

A set of 1553B remote terminal(RT) system was designed based on control of 51 series microcontroller.The system will be used for transmitting scientific data and housekeeping data from gamma ray bursts polarimeter(POLAR) to TG-2,and control instruction from TG-2 to POLAR.BU-65170 is used as 1553B protocol chip in the system.A set of 1553B bus controller(BC) simulator was designed in order to test the data communication function of 1553B RT system.The test result indicates that the data communication function of 1553B RT system based on control of 51 series microcontroller is stable and reliable.

It introduces about the design and implementation of High Precise Event Time Stamping module,which is responsible for stamping the good event pass signal L1*,generated by trigger system.The module is based on GPS timing solution,supported the VME typical read/write cycles and protocol like CBLT for data transfer;all functions are implemented in FPGA.Time Stamping data output is given at the end of the paper.The design achieves the preliminary design object.