中国科学院机构知识库网格系统: 检索

浏览/检索结果: 共6条，第1-6条

帮助

条数/页：排序方式：
	Optimal selection and release problem in software testing process: A continuous time stochastic control approach 期刊论文 OAI收割 EUROPEAN JOURNAL OF OPERATIONAL RESEARCH, 2020, 卷号: 285, 期号: 1, 页码: 211-222 作者: Cao, Ping; Yang, Ke; Liu, Ke \| 收藏 \| 浏览/下载：32/0 \| 提交时间：2020/06/30 Project management Software testing process Dynamic programming Continuous time stochastic optimal control Optimal software testing and release
	Small aircraft CAN bus signal acquisition equipment (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Chen C.-Q. 收藏 \| 浏览/下载：29/0 \| 提交时间：2013/03/25 Small aircraft often used RS485 bus. But with the complexity of the small aircraft's subsystems increase and the progress of field bus technology CAN bus systems in small aircraft use more and more widely. How to record real-time flight experiment data on the small aircraft's CAN bus and provide test data for reproducing the process of a small aircraft flying is very important. This paper presents a design method of signal acquisition device it can be used for small aircraft flying field experiment. 2010 IEEE. as the main chip with DSP2812 SJA1000 as CAN controller CTM1050 as the CAN transceiver CF card as storage media. Gives the diagram of its hardware and software design process. Combined with the background of a small aircraft testing the instrument for data acquisition when the ground experiments and flight progress. Experimental data show that the design of high reliability and CAN signals can effectively complete the record
	Design and fabrication of CGH for aspheric surface testing and its experimental comparison with null lens (EI CONFERENCE) 会议论文 OAI收割 5th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Optical Test and Measurement Technology and Equipment, April 26, 2010 - April 29, 2010, Dalian, China 作者: Zhao J.; Zhang X.; Zhang X.; Zhang X.; Li F. 收藏 \| 浏览/下载：34/0 \| 提交时间：2013/03/25 Computer-generated hologram (CGH) is an effective way to compensate wavefront in null test of aspheric surfaces and freeform surfaces. Our strategies of CGH design and fabrication for optical testing are presented and an experiment demonstrating the compensation results of CGH and null lens is also reported. In order to design complex CGH software was developed with which we can design a CGH including three sections: main section for compensating wavefront in null test alignment section for adjusting the relative position between CGH and interferometer and fiducial section for projecting fiducial marks around the optics under test. The design result is represented in GDS II format file which could drive a laser-direct-writer- machine to fabricate a photomask. Then a 1:1 replication process is applied to duplicate the patterns from photomask to a parallel optical substrate whose surface is error better than /60 rms. Finally an off-axis aspheric surface was tested with CGH and null lens respectively. The test result with CGH (0.019rms) is almost the same as the result with null lens (0.020 rms). This experiment also demonstrated that fiducial marks projected by CGH can be used to guide the alignment of the optics and measurement of its off-axis distance. 2010 Copyright SPIE - The International Society for Optical Engineering.
	automated test program generation for an industrial optimizing compiler 会议论文 OAI收割 4th International Workshop on Automation of Software Test (AST 2009) held at the 31st International Conference on Software Engineering, Vancouver, CANADA, MAY 18-19, Zhao Chen; Xue Yunzhi; Tao Qiuming; Guo Liang; Wang Zhaohui \| 收藏 \| 浏览/下载：11/0 \| 提交时间：2011/03/20 Chinese Academy of Sciences Institute of Software Matsushita Electric Industrial Co., Ltd automated test program generation industrial optimizing compiler script-driven test program generation process temporal-logic model automatic programming optimising compilers program testing temporal logic
	an empirical study on establishing quantitative management model for testing process 会议论文 OAI收割 International Conference on Software Process, Minneapolis, MN, MAY 19-20, Wang Qing; Gou Lang; Jiang Nan; Che Meiru; Zhang Ronghui; Yang Yun; Li Mingshu \| 收藏 \| 浏览/下载：19/0 \| 提交时间：2011/06/29 software measurement quantitative process management testing process process performance baseline
	Computer aided alignment for off-axis asphere null test (EI CONFERENCE) 会议论文 OAI收割 Optical Design and Testing II, November 8, 2004 - November 11, 2004, Beijing, United states 作者: Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：15/0 \| 提交时间：2013/03/25 The method of null test is widely used for testing an aspheric mirror. During optical manufacturing process the mirror has to be moved up and down for testing and fabricating. Because the alignment of null test is difficult and time costing the efficiency of making aspheric mirror is decreased greatly. In order to solve the problem we developed a software based on polynomial fitting to calculate the misalignment parameters. By using the software and computer numeric controlled adjusting equipments the efficiency of testing is increased and the accuracy of test has reached up to /40 RMS where equals to 632.8nm which has fulfilled the demand of the designer.