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| 1 | 编译指导的多线程低功耗技术研究显示文摘多线程和低功耗将是研究下一代微处理器结构所要解决和实现的重点目标之一 .提出了一个在 SMT体系结构中通过动态调整 CPU执行频率降低功耗的计算模型 ,进一步分析和讨论了如何在编译时识别具有可使处理部件降低频率执行的期望区间 ,并给出了调整频率和能量分析的计算模型以及编译实现策略 ,目的是在不降低或不明显降低程序执行性能的情况下 ,显著降低处理器的功率 /能量消耗 .理论上该模型也可以用于 | 赵荣彩 唐志敏 张兆庆 Guang R.Gao | 2002 | 计算机研究与发展2002，39，12： | 7 |
| 2 | 基于比较策略的嵌入式系统性能基准测试研究显示文摘嵌入式系统受成本、功耗、芯片体积和开发周期等多种因素的制约,其性能往往难以满足应用需求,充分发挥嵌入式系统的潜能对嵌入式系统设计尤为重要。为此,需要对嵌入式系统进行性能基准测试,指导嵌入式系统设计的技术选型和决策,在满足应用需求的前提下,达到最佳性能/价格比。该文分析了嵌入式系统性能基准测试的基本原理和性能指标,介绍了几种常用的嵌入式系统性能评测基准及其适用范围,提出了一种运用对比策略进行嵌入式系统性能测试的测试方法和测试环境的构成,实现了一种嵌入式性能测试工具,并对相关的嵌入式系统及构件进行了性能测试。最后对嵌入式系统性能基准测试研究存在的主要问题进行了评价。 | 徐钦桂 李勇 张杰明 Guang R.Gao | 2005 | 计算机工程与应用2005，41，19： | 6 |
| 3 | 软件流水的低功耗编译技术研究显示文摘对具有可动态独立调整运行频率/电压的多功能部件配置结构M,基于全局调度的循环依赖关系,使用ILP形式化框架,研究了对给定循环L进行动态频率/电压调整的低功耗软件流水调度的编译优化技术,提出了一种合理而有效的低功耗最优化软件流水调度方法,使其在运行时保持性能不变而消耗的功耗/能量最小。 | 赵荣彩 唐志敏 张兆庆 Guang R.Gao | 2003 | 软件学报2003，14，8： | 5 |
| 4 | The nicotinic acetylcholine receptor subunit Mdα6 from Musca domestica is diversified via post‐transcriptional modification显示文摘 | J.‐R.Gao J. M.Deacutis J. G.Scott | 2007 | Insect Molecular Biology2007，，3： | 1 |
| 5 | The technology for detection of gamma-ray burst with GECAM satellite显示文摘Introduction The main physical objective of the GECAM satellite is to detect gamma-ray bursts,which is related to gravitational waves of double compact object mergers.The GECAM satellite also detects and investigates various bursts of high-energy celestial bodies.Purposes and methods In this study,we designed,developed and calibrated the payload and launched it into orbit with GECAM satellite.The payload consists of the gamma ray detector(GRD,for detecting 4 keV–4 MeV X/γray),the charged particle detector(CPD,for detecting 150 keV–5 MeV charged particle),and the electronic box(EBOX).The all-sky field coverage is achieved via two 229-degree large-area satellites positioned 180 degrees apart and are on opposite sides of the geo-center.Each satellite is equipped with 25 GRDs and 8 CPDs;thus,the satellite can identify charged particle bursts in space.Gamma-ray detectors adopt lanthanum bromide crystal technology combined with silicon photomultipliers.This is the first time that this technology was used massively in space detectors.Conclusions The GECAM satellite can quickly determine the direction of gamma-ray bursts(positioning)via indexing and fitting method,while the transmit variability,energy spectrum and direction of the gamma-ray bursts guide subsequent observations through the Beidou-3 RDSS in quasi-real time.It will play an important role in the study of high energy celestial bursts. | X.Q.Li X.Y.Wen Z.H.An C.Cai Z.Chang G.Chen C.Chen Y.Y.Du M.Gao R.Gao K.Gong D.Y.Guo J.J.He D.J.Hou Y.G.Li C.Y.Li G.Li L.Li X.F.Li M.S.Li X.H.Liang X.J.Liu Y.Q.Liu F.J.Lu H.Lu B.Meng W.X.Peng F.Shi X.L.Sun H.Wang J.Z.Wang Y.S.Wang H.Z.Wang X.Wen S.Xiao S.L.Xiong Y.B.Xu Y.P.Xu S.Yang J.W.Yang Q.B.Yi D.L.Zhang Fan Zhang S.N.Zhang C.Y.Zhang C.M.Zhang Fei Zhang X.Y.Zhao Y.Zhao X.Zhou C.S.Zhang J.P.Yu L.Chang K.K.Zhang J.Huang Y.M.Chen X.B.Han | 2022 | Radiation Detection Technology and Methods2022，6，1： | 0 |
| 6 | Quality assurance test and failure analysis of SiPM arrays of GECAM satellites显示文摘Background The Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)satellite developed a SiPM-based gamma-ray detector to monitor the gravitational wave-related GRBs and guide subsequent observations in other wavelengths of EM.Purpose As all the available SiPM devices belong to commercial grade,quality assurance tests need to be performed in accordance with the aerospace specifcations.Methods In the SiPM application of GECAM,quality assurance experiments were conducted.The mechanism of the failure of SiPM devices was analyzed during the development process.Result Based on the quality assurance test results,the fnal pass rate of SiPM array was 95%.Based on the failure analysis,it was found that a piece of SiPM had a leakage channel after longtime operation due to device defects.Conclusion According to the accumulated experience,in the reliability test of SiPM,it is necessary to pay special attention to test the impedance of each pin of SiPM to ground and confrm that the power switch state of SiPM is controllable. | D.L.Zhang M.Gao X.L.Sun X.Q.Li Z.H.An X.Y.Wen C.Cai Z.Chang G.Chen C.Chen Y.Y.Du R.Gao K.Gong D.Y.Guo J.J.He D.J.Hou Y.G.Li C.Y.Li G.Li L.Li X.F.Li M.S.Li X.H.Liang X.J.Liu Y.Q.Liu F.J.Lu H.Lu B.Meng W.X.Peng F.Shi H.Wang J.Z.Wang Y.S.Wang H.Z.Wang X.Wen S.Xiao S.L.Xiong Y.B.Xu Y.P.Xu S.Yang J.W.Yang Fan.Zhang S.N.Zhang C.Y.Zhang C.M.Zhang Fei Zhang X.Y.Zhao X.Zhou | 2022 | Radiation Detection Technology and Methods2022，6，1： | 0 |
| 7 | The design and performance of GRD onboard the GECAM satellite显示文摘Background Each GECAM satellite payload contains 25 gamma-ray detectors(GRDs),which can detect gamma-rays and particles and can roughly localize the Gamma-Ray Bursts(GRBs).GRD was designed using lanthanum bromide(LaBr3)crystal as the sensitive material with the rear end coupled with silicon photomultiplier(SiPM)array for readout.Purpose In aerospace engineering design of GRD,there are many key points to be studied.In this paper,we present the specific design scheme of GRD,the assembly and the performance test results of detectors.Methods Based on Monte Carlo simulation and experimental test results,the specific schematic design and assembling process of GRD were optimized.After being fully assembled,the GRDs were conducted performance tests by using radioactive source and also conducted random vibration tests.Result and conclusion The test results show that all satellite-borne GRDs have energy resolution<16%at 59.5 keV,meeting requirements of satellite in scientific performance.The random vibration test shows that GRD can maintain in a stable performance,which meets the requirement of spatial application. | Z.H.An X.L.Sun D.L.Zhang S.Yang X.Q.Li X.Y.Wen K.Gong X.H.Liang X.J.Liu Y.Q.Liu Y.G.Li S.L.Xiong Y.B.Xu Fan Zhang X.Y.Zhao C.Cai Z.Chang G.Chen C.Chen Y.Y.Du P.Y.Feng M.Gao R.Gao D.Y.Guo J.J.He D.J.Hou C.Y.Li G.Li L.Li X.F.Li M.S.Li F.J.Lu H.Lu B.Meng W.X.Peng F.Shi H.Wang J.Z.Wang Y.S.Wang H.Z.Wang X.Wen S.Xiao Y.P.Xu J.W.Yang Q.B.Yi S.N.Zhang C.Y.Zhang C.M.Zhang Fei Zhang Y.Zhao X.Zhou | 2022 | Radiation Detection Technology and Methods2022，6，1： | 0 |
| 8 | The design and performance of charged particle detector onboard the GECAM mission显示文摘Background The Gravitational wave highly energetic Electromagnetic Counterpart All-sky Monitor(GECAM)is dedicated to detecting gravitational wave gamma-ray bursts.It is capable of all-sky monitoring over and discovering gamma-ray bursts and new radiation phenomena.GECAM consists of two microsatellites,each equipped with 8 charged particle detectors(CPDs)and 25 gamma-ray detectors(GRDs).Purpose The CPD is used to measure charged particles in the space environment,monitor energy and flow intensity changes,and identify between gamma-ray bursts and space charged particle events in conjunction with GRD.Methods CPD uses plastic scintillator as the sensitive material for detection,silicon photomultiplier array as the optically readable device,and the inlaid Am-241 radioactive source as the onboard calibration means.Conclusion In this paper,we will present the working principle,physical design,functional implementation and preliminary performance test results of the CPD.As a result,the energy range of electron,gamma-ray detection efficiency and dead time are tested to be better than the indexes required through the ground calibration experiment. | Y.B.Xu X.Q.Li X.L.Sun S.Yang H.Wang W.X.Peng X.H.Liang K.Gong Y.Q.Liu D.Y.Guo X.Y.Zhao C.Y.Li Z.H.An J.J.He X.J.Liu X.Y.Wen S.L.Xiong Fan Zhang D.L.Zhang C.Y.Zhang C.Cai Z.Chang G.Chen C.Chen Y.Y.Du M.Gao R.Gao D.J.Hou Y.G.Li G.Li L.Li X.F.Li M.S.Li F.J.Lu H.Lu B.Meng F.Shi J.Z.Wang Y.S.Wang H.Z.Wang X.Wen S.Xiao Y.P.Xu J.W.Yang Q.B.Yi S.N.Zhang C.M.Zhang F.Zhang Y.Zhao X.Zhou | 2022 | Radiation Detection Technology and Methods2022，6，1： | 0 |
| 9 | Dedicated SiPM array for GRD of GECAM显示文摘Purpose The discovery of gravitational waves and gamma-ray bursts heralds the era of multi-messenger astronomy.With the adoption of two small satellites to achieve the all-sky monitoring of gamma-ray bursts,the gravitational wave highenergy electromagnetic counterpart all-sky monitor(GECAM)possesses a quasi-real-time early warning ability and plays an important role in positioning the sources of gravitational waves and in subsequent observations.Each satellite of GECAM was fitted with 253-inch-diameter gamma-ray detectors(GRD),covering an energy range of 8–2 MeV.GRDs have adopted silicon photomultiplier tubes(SiPM)in lieu of photomultiplier tubes(PMT)to adapt to the dimensional limitations of micro-satellites.Methods A unique 3-inch circular SiPM array was designed.In this design,646×6 mm chips were arranged evenly in a circular manner with the seams filled with reflecting films,thus achieving satisfactory uniformity of light collection.The integrated pre-amplifier circuit on the back of the SiPM array adopted two-level grouping and summing;further,it achieved a satisfactory signal-to-noise ratio.Two high-gain and low-gain channels were adopted to achieve a large dynamic range,and two independent power supply units were used,where each unit can be closed separately,thus improving reliability.Results Performance studies show that this SiPM array meets the requirements of GECAM.Conclusion A 3-inch SiPM array have been developed that uses grouped summation,reflective films,a circular arrangement,two groups of independent power supplies,high-and low-gain signals,differential signal output technologies,etc.This solution can be used not only for GECAM,but also as a general solution for SiPM-based scintillation detectors. | D.L.Zhang X.L.Sun Z.H.An X.Q.Li X.Y.Wen K.Gong C.Cai Z.Chang G.Chen C.Chen Y.Y.Du M.Gao R.Gao D.Y.Guo J.J.He D.J.Hou Y.G.Li C.Y.Li G.Li L.Li X.F.Li M.S.Li X.H.Liang X.J.Liu Y.Q.Liu F.J.Lu H.Lu B.Meng W.X.Peng F.Shi H.Wang J.Z.Wang Y.S.Wang H.Z.Wang X.Wen S.Xiao S.L.Xiong Y.B.Xu Y.P.Xu S.Yang1 X.Zhou J.W.Yang Fan Zhang S.N.Zhang C.Y.Zhang C.M.Zhang Fei Zhang X.Y.Zhao | 2022 | Radiation Detection Technology and Methods2022，6，1： | 0 |
| 10 | The data acquisition algorithm designed for the SiPM-based detectors of GECAM satellite显示文摘Background The Gravitational Wave High-energy Electromagnetic Counterpart All-sky Monitor(GECAM)consists of 2 microsatellites,each of which contains 25 GRD(LaBr3)detectors and 8 CPD(plastic scintillator)detectors.Method silicon photomultiplier(SiPM)array is used to read each detector.The output signal of these detectors with SiPM array is very special and challenging to readout.In this study,a novel data acquisition(DAQ)algorithm for these detectors is designed and implemented,and the content of the output event packet is defined.Result and Conclusion The performances,including the event acquisition efficiency of this DAQ algorithm,are extensively verified through experimental tests.From the on-ground and in-flight tests,this algorithm has excellent performance despite the very limited resources and short development time of GECAM mission. | Y.Q.Liu K.Gong X.Q.Li X.Y.Wen Z.H.An C.Cai Z.Chang G.Chen C.Chen Y.Y.Du M.Gao R.Gao D.Y.Guo J.J.He D.J.Hou Y.G.Li C.Y.Li G.Li L.Li X.F.Li M.S.Li X.H.Liang X.J.Liu F.J.Lu H.Lu B.Meng W.X.Peng F.Shi X.L.Sun H.Wang J.Z.Wang Y.S.Wang H.Z.Wang X.Wen S.Xiao S.L.Xiong Y.B.Xu Y.P.Xu S.Yang J.W.Yang Q.B.Yi Fan Zhang D.L.Zhang S.N.Zhang C.Y.Zhang C.M.Zhang Fei Zhang X.Y.Zhao Y.Zhao X.Zhou | 2022 | Radiation Detection Technology and Methods2022，6，1： | 0 |
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