用户名: 密码: 验证码:
旋转弹体背景磁场模型和地磁姿态测试方法研究
详细信息    本馆镜像全文|  推荐本文 |  |   获取CNKI官网全文
摘要
随着对弹药射击精度要求的不断提高及各种智能弹药的研制,迫切需要掌握弹体飞行的规律。精确测量弹体的飞行姿态参数成了刻不容缓的研究任务。准确测试旋转弹体的飞行姿态数据以提高各种武器性能,对我国国防科技发展有着重要的现实意义。
     利用地磁场测量来实现弹体的姿态测试具有无源、无辐射、全天时、全天候、能耗低的优良特征,已经成为弹箭姿态信息获取方法的发展趋势。目前所有利用地磁来进行飞行体姿态测量的方法都面临背景磁场的干扰问题,且仅测量地磁场三轴分量无法得到姿态角的全部信息,使得该技术在载体姿态测量中还处于辅助测量的地位。
     本文对旋转弹体背景磁场的干扰机理和特性进行分析,建立了背景磁场的数学模型,进行了弹上地磁场测量的模型化补偿技术的研究。采用全磁传感器组合,寻求合理的布阵方式及解算方法,设计了基于地磁探测的旋转弹体姿态角测量方案。在此基础上完成了测试系统的软硬件设计,对研制的测量装置进行了半实物仿真实验,验证了所设计方案的有效性。论文具体包括以下内容:
     (1)在分析背景磁场的组成及其干扰机理的基础上,研究了旋转弹体背景磁场的数学建模,并结合磁传感器自身误差特性,建立了地磁场测量综合补偿模型,提出了弹上地磁测量的模型化补偿方法。
     (2)设计了补偿模型系数分离求解的方法。对比研究了四种静态模型系数估计算法的优劣性。对动态涡流补偿系数的估计算法进行了优化设计。利用仿真和实验验证了模型系数估计方法的有效性和可靠性。
     (3)提出了基于三正交比值法的旋转弹体测姿方法,并结合弹上地磁分量测量的模型化补偿技术设计了一种全磁传感器组合的旋转弹体姿态修正方案。该方案适用于旋转弹体的姿态测量,具备全天时、全天候的测量能力。
     (4)设计了一套以FPGA为主控制微处理器的地磁场测量采集存储系统。该系统采用数据存储、事后回收的模式,同时适用于转台实验和弹载测试。
     (5)对全磁组合测姿系统半实物装置进行了研制。利用三轴转台进行了半实物验证实验,结果表明姿态解算误差在±1°以内。
With the continuous improvement requirements of ammunition firing accuracy and the development of all kinds of intelligent ammunition, accurate measurement of the projectile flight attitude parameters has become the urgent task. It can improve the performance of weapon and develop the national defense science and technology.
     Achieving attitude measurement of projectile with geomagnetic measuring has good characteristics, such as no source, no radiation, all-time, all-weather and low energy consumption. It has become the development trend of the projectile attitude measuring methods. At present, all the methods giving orientations with respect to geomagnetic field are faced with the interference of background magnetic field. Meanwhile, the three axis components of the geomagnetic cannot give the whole attitude information. These problems make this technology to be still auxiliary in the carrier attitude measurement.
     The interference mechanism and characteristic of rotating projectile background magnetic field are analyzed. A mathematical model of background magnetic field is built and the researches of modeling compensation technology for magnetic measuring on projectile are carried out. An attitude measurement method is designed based on full magnetic sensor combination. Reasonable configuration and calculating method are discussed. On the basis, the test system software and hardware design are accomplished. The hardware-in-the-loop simulation of the developed measuring device is carried out to verify the effectiveness of the proposed design. Main research work can be summed up in the following aspects:
     (1) The mathematical modeling of rotary projectile background magnetic field is studied based on the interference mechanism analysis. Combined with the self-error characteristics of magnetic sensor, the comprehensive compensation model of magnetic survey is built and modeling compensation method is put forward.
     (2) The separating estimation method of the compensation model coefficients is researched. The qualities of four identification algorithms for static model coefficients are studied. The optimization design of the dynamic eddy current compensation coefficients estimation is accomplished. The effectiveness and reliability of the proposed methods are verified by the simulations and experiments.
     (3) The three orthogonal ratio method is put forward for measuring projectile attitude. Combining with the proposed modeling compensation technology, a new attitude correction method with full magnetic sensor unit is designed, which has all-time, all-weather measuring capability and is suitable for rotating projectile.
     (4) Data acquisition system with FPGA microprocessor control is designed for geomagnetic measurement. This system works in data storage and recovery mode, and suitable for both turntable experiment and the missile-borne experiment.
     (5) The hardware-in-the-loop device is developed for the experiments, which are carried on using three-axis turntable. The results show that calculating errors are within±1°.
引文
[1]张民权,刘东方,王冬梅,庞艳珂.弹道修正弹发展综述.兵工学报,2010,31(增刊2):127-130
    [2]郭锡福,远程火炮武器系统射击精度分析.第1版.北京:国防工业出版社,2004
    [3]郭才发,胡正东,张士峰,蔡洪.地磁导航综述.宇航学报,2009,30(4):1314-1319
    [4]Agarwal V, Arya H, Bhaktavatsala S. Design and Development of a Real-Time DSP and FPGA-Based Integrated GPS-INS System for Compact and Low Power Applications. Aerospace and Electronic Systems. IEEE Transactions,2009,45(2):443-454
    [5]Sul Gee Park, Ho Cheol Jeong, Jeong Won Kim, Dong-Hwan Hwang, Sang Jeong Lee. Magnetic com pass fault detection method for GPS/INS/magnetic compass integrated navigation systems. International Journal of Control:Automation and Systems,2011, (2): 276-284
    [6]Randy wells, Huntsville, AL (US). Inertial-magnetic measurement device. United States Patent. Sep,2009. No:US 7,587,277B1
    [7]杨云涛,石志勇,等.地磁场在导航定位系统中的应用.中国惯性技术学报,2007,15(6):686-692
    [8]Inamori T, Sako N, Nakasuka S. Magnetic dipole moment estimation and compensation for an accurate attitude control in nano-satellite missions. Acta Astronautica,2011,68(11): 2038-2046
    [9]David Titterton, John Weston. Strapdown Inertial Navigation Technology.2ND Edition, London:The Institution of Engineering and Technology,2004
    [10]李荣冰,刘建业,曾庆化,华冰.基于MEMS技术的微型惯性导航系统的发展现状.中国惯性技术学报,2004,12(6):88-94
    [11]曹咏弘,张慧,范锦彪,马铁华,祖静.基于无陀螺惯性测量装置考虑全加速度计安装误差时弹丸姿态优化算法研究.兵工学报,2009,30(2):170-174
    [12]吴三灵,温波,于永强.火炮动力学试验.第1版.北京:国防工业出版社,2004
    [13]汪小娜,王树宗,朱华兵.无陀螺捷联惯性导航技术.中国惯性技术学报,2010,18(5):538-542
    [14]桂延宁,杨燕.基于太阳方位角原理的炮弹飞行姿态遥测.兵工学报.2003,24(2):250-252
    [15]Oliver Montenbruck, Simone D'Amico. GPS Based Relative Navigation. Distributed Space Missions for Earth System Monitoring,2013, (31):185-223
    [16]刘建业,曾庆化,赵伟,熊智.导航系统理论与应用.第2版.西安:西北工业大学出版社,2010
    [17]张炎华,王立端,战兴群,翟传润.惯性导航技术的新进展及发展趋势.中国造船.2008,49(总183):135-144
    [18]KURITSKY MM, GOLDSTEIN MS, GREENWOOD I A, et al. Inertial navigation. Proceedings of the IEEE,1983,71(10):1156-1176
    [19]TITTERTON D H, WESTON J L. Strapdown Inertial Navigation Technology. London: Peter Peregrinus,1997
    [20]King A D. Inertial Navigation-Forty Years of Evolution. GEC Review,1998,13(3): 140-149
    [21]陆元九.陀螺及惯性导航原理.北京:科学出版社,1964
    [22]Gai E. The century of inertial navigation technology. Aerospace Conference Proceedings,2000 IEEE, (1):59-60
    [23]Weston J.L, Titterton D.H. Modern inertial navigation technology and its application. Electronics & Communication Engineering Journal,2000,12(2):49-64
    [24]张炎华,吕葵,程加斌.光纤陀螺的研究现状及发展趋势.上海交通大学学报,1998,32(8):126-129
    [25]张睿,张炎华,汪绳武.干涉型全光纤退偏陀螺中偏振过程的研究.上海交通大学学报,2003,37(1):145-148
    [26]M Faucheux, D Fayoux, JJ Roland. The ring laser gyro. Journal of Optics (Paris),1988, 19(3):101-115
    [27]Knudsen L. Performance Accuracy (Truth Model/Error Budget) Analysis for the LN-93 Inertial Navigation Unit. Technical Report, Litton Guidance and Control Systems, Woodland Hills, CA:January 1985. DID No. DI-S-21433 B/T:CDRL,1985
    [28]Wang M, Wang Y, Zhang Y. Adaptive filter for a miniature MEMS based attitude and heading reference system. Journal of Harbin Institute of Technology,2006,13(5):571-575
    [29]姜劭栋,裘安萍,施芹,苏岩.硅微陀螺仪正交耦合系数的计算及验证.光学精密工程,2013,21(1):87-93
    [30]Shaeffer D K. MEMS inertial sensors:A tutorial overview. Communications Magazine, IEEE,2013,51(4):100-109
    [31]Yaqi Bao, Guoguang Chen, Xiwen Cheng. An economic full attitude detector for aerial vehicle with precomputed trajectory. Measurement 2009, (42):208-213
    [32]XY Liu, ZY Zhou, X Wei, Design and Test of MEMS Attitude Measurement Unit for Fall Detection. Key Engineering Materials,2011, (483):465-470
    [33]S.Becka, M.Novack, S.Slivinsky, C.Paul. A High Reliability Solid State Accelerometer for Ballistic Missile Inertial Guidance. AIAA/AAS Astrodynamics Specialist Conference and Exhibit. AIAA-2008-7300:1-12
    [34]Fourati H, Manamanni N, Afilal L, et al. A nonlinear filtering approach for the attitude and Dynamic Body Acceleration estimation based on inertial and magnetic sensors: Bio-logging application. Sensors Journal, IEEE,2011,11(1):233-244
    [35]Raja M, Sidhu H.S, Adhiyaman N, et al. Integration of GPS/INS Navigation System with Application of Fuzzy Corrections. Conference on Advances in Communication and Control Systems,2013:450-454
    [36]Corey V.B. Measuring Angular Acceleration with Linear Acceleration. Control Engineering,1962, (2):79-80
    [37]Schuler A.R. Measuring Rotational Motion with Linear Accelerometers. IEEE Trans on AES,1967,3(3):465-472
    [38]Padgaonkar A J, Krieger K W, King A I. Measurement of Angular Acceleration of a Rigid Body Using Linear Accelerometers. Journal of Applied Mechanics,1975,42(5):552-556
    [39]Merhav S J. A Non-gyroscopic Inertial Measurement Unit. Journal of Guidance and Control,1982,5(3):227-235
    [40]曹咏弘,祖静,林祖森.无陀螺捷联惯导系统综述.测试技术学报,2004,18(3):269-273
    [41]马澍田,陈世友,李艳梅,等.无陀螺捷联惯导系统.航空学报,1997,18(4):484-488
    [42]牟淑志.无陀螺惯性测量组合仿真及实验研究.博士学位论文.南京理工大学,2007
    [43]杨功流,李士心,姜朝宇.地磁辅助惯性导航系统的数据融合算法.中国惯性技术学报,2007,5(1):46-49
    [44]Psiaki M L. Autonomous low earth orbit determination from magnetometer and sun sensor data. Journal of Guidance, Control and Dynamics,1999,22(2):296-304
    [45]Shorshi G, Bar-hzhack I Y. Satellite autonomous navigation based on magnetic field measurements. Journal of Guidance, Control and Dynamics,1995,18(4):843-850
    [46]王向磊,赵东明.UKF在基于地磁场的自主导航中的应用分析.大地测量与地球动力学,2010,30(6):144-149
    [47]晏登洋.惯性/地磁组合导航技术研究.硕士学位论文.西北工业大学,2007
    [48]Deutschmann J, Bar-Itzhack I Y. Evaluation of attitude and Orbit estimation using actual earth magnetic field date. Journal of Guidance, Control and Dynamics,2001,24(3): 616-626
    [49]Kim Son-Goo, Crassidis John L, Cheng Yang, Fosbury Adam M, Junkins John L Kalman filtering for relative spacecraft attitude and position estimation. Journal of Guidance, Control and Dynamics,2007,30(1):133-143
    [50]周军,葛致磊,施桂国,刘玉霞,等.地磁导航发展与关键技术.宇航学报,2008,29(5):1467-1472
    [51]Johnson L H, Kurschner D L. Roll orientation using turns-counting fuze:U.S. Patent 7,566,027.2009.
    [52]D.J. Hepner, T.E. Harkins. Determining inertial orientation of a spinning body with body-fixed sensors, in:The International Society for Optical Engineering, Orlando, FL, USA, Proceedings of SPIE,2000, (4025):68-78
    [53]F Goldenberg. Geomagnetic navigation beyond magnetic compass. PLANS 2006, San Diego, California,2001:684-694
    [54]吴美平,刘颖,胡小平.ICP算法在地磁辅助导航中的应用.航天控制,2007,27(6):17-21
    [55]陈丽.基于三维磁探测的弹丸姿态角检测技术研究.硕士学位论文.南京理工大学,2009
    [56]高峰,张合,程翔,陈丽.弹道修正引信中的地磁信号及其抗干扰研究.弹道学报,2008,20(4):45-48
    [57]Drescher Thomas, Kreuzer Wolfgang, John Nielson. Rocket trajectory correction using strap-on GPS guided thrusters. Record-IEEE PLANS, Position Location and Navigation Symposiumc. NJ,USA:IEEE,Piseataway,1998:387-394
    [58]路超.弱磁传感器在地磁探测应用中的功能优化研究.硕士学位论文.南京理工大学,2008
    [59]李素敏,张万清.地磁场资源在匹配制导中的应用研究.制导与引信,2004,25(3):19-21
    [60]董昆,周军,葛致磊.基于地磁场的新型导航方法研究.火力与指挥控制,2009,34(3):153-155
    [61]王武杰,侯文,郑宾.火箭弹滚转角测量方法研究.中北大学学报(自然科学版),2008,29(2):170-175
    [62]黄峥,李科杰,金连宝.火炮弹丸捷联式地磁-太阳方位姿态测量模型研究.兵工学报,2001(1):19-22
    [63]高峰,张合.基于基准角和补偿角的常规弹药滚转角磁探测算法研究.探测与控制 学报,2008,30(5):11-15
    [64]黄旭,王常虹,伊国兴,王玉峰.利用磁强计及微机械加速度计和陀螺的姿态估计扩展卡尔曼滤波器.中国惯性技术学报,2005,13(2):27-30
    [65]崔敏,马铁华,段精婧,等.基于磁强计和陀螺的弹箭飞行姿态测试方法.弹箭与制导学报,2010,30(6):85-87
    [66]王常虹,刘睿,李葆华.地磁/天文自主导航算法.中国惯性技术学报,2010,18(4):429-433
    [67]曹红松,冯顺山,赵捍东,金俊.地磁陀螺组合弹药姿态探测技术研究.弹箭与制导学报,2006,26(3):142-144
    [68]曹红松,陈国光.在利用地磁探测确定弹体滚转姿态时的使用域分析.弹箭与制导学报,2005,25(2):66-68
    [69]李玎,卜雄洙,向超,等.全磁传感器弹体定姿布阵与半实物仿真.南京理工大学学报(自然科学版),2010,34(5):608-612
    [70]Hine. A Magnetic Compasses and Magnetometers. London:Adam Hilger LTP,1968
    [71]Gebre-Egziabher D, Elkaim G H, David Powell J, et al. Calibration of strapdown magnetometers in magnetic field domain. Journal of Aerospace Engineering,2006,19(2): 87-102
    [72]Fitzgibbon A, Pilu M, Fisher R B. Direct least square fitting of ellipses. Pattern Analysis and Machine Intelligence, IEEE Transactions on,1999,21(5):476-480
    [73]郭鹏飞,任章,邱海韬,等.一种十二位置不对北的磁罗盘标定方法.中国惯性技术学报,2007,15(5):598-601
    [74]袁智荣.三轴磁航向传感器的全姿态误差补偿.传感器技术,2003,22(9):34-36
    [75]杨新勇,黄圣国.智能磁航向传感器的研制及误差补偿算法分析.北京航空航天大学学报,2004,30(3):244-248
    [76]马慧明,焦国太.采样保持电路法补偿磁通门传感器背景磁场.探测与控制学报,2009,31(1):36-40
    [77]Tolles W.E. Compensation of induced magnetic fields in MAD equipped aircraft. Airborne Instruments Lab, OSRD,1943:1386
    [78]Tolles W.E, Lawson J.D. Magnetic compensation of MAD equipped aircraft. Airborne Instruments Lab. Inc., Min-eola, NY, Rept,1950:201-1
    [79]Leliak P. Identification and evaluation of magnetic-field sources of magnetic airborne detector equipped aircraft. Aerospace and Navigational Electronics, IRE Transactions on, 1961, (3):95-105
    [80]Bickel S H. Small signal compensation of magnetic fields resulting from aircraft maneuvers. Aerospace and Electronic Systems, IEEE Transactions s on,1979, (4):518-525
    [81]何敬礼.飞机磁补偿、磁补偿器的历史、现状及发展趋势.地学仪器,1991(3):1-7
    [82]庞学亮,王清.高速飞行器背景磁场模型分析与改进.四川兵工学报,2010,31(5):22-24
    [83]Xueliang Pang, Chunsheng Lin. Study on Aircraft Magnetic Compensation Based on FIR Model. Proceedings of the International Symposium on Intelligent Information Systems and Applications(IISA'09),2009:604-607
    [84]Peng D, Chun-sheng L, Jian Z, et al. Adaptive detection of magnetic target in aeromagnetic survey. Computer Science and Information Technology (ICCSIT),2010 3rd IEEE International Conference on. IEEE,2010,2:497-501
    [85]YANG Yun-tao, SHI Zhi-yong, GUAN Zhen-zhen, LU Jian-gang. A Magnetic Disturbance Compensation Method Based On Magnetic Dipole Magneti Field Distributing Theory. Journal Of China Ordnance,2009,5(3):185-191
    [86]Rogers J, Costello M, Harkins T, et al. Effective Use of Magnetometer Feedback for Smart Projectile Applications. Navigation,2011,58(3):203-219
    [87]陈列兢.何乃明:中国海军消磁界大腕.当代海军,2004(9):17-19
    [88]王德春,芮健,张杰.捷联惯性导航系统姿态算法综述.战术导弹控制技术,2009,31(2):41-44
    [89]杨续伟.基于微惯性组合的嵌入式航姿参考系统研究.硕士学位论文.上海交通大学,2012
    [90]邢质皙,王爱民.捷联惯导系统姿态算法比较.舰船电子工程,2009,181(7):81-84
    [91]秦永元.惯性导航.第1版.北京:科学出版社,2006
    [92]徐文耀.地磁学.第1版.北京:地震出版社,2003
    [93]杨晓东,王炜.地磁导航原理.第1版.北京:国防工业出版社,2009
    [94]白春华,徐文耀,康国发.地球主磁场模型.地球物理学进展,2008,23(4):1045-1057
    [95]Macmillan S, Quinn J M. The 2000 revision of the joint UK/US geomagnetic field models and an IGRF 2000 candidate model. Earth Planets Space,2000,52(12):1149-1162
    [96]徐文耀,区加明,杜爱民.地磁场全球建模和局域建模.地球物理学进展,201 1,26(2):398-415
    [97]陈勇巍.基于地磁探测的弹丸滚转角辨识系统关键技术研究.博士学位论文.南京理工大学,2007
    [98]秦子然,刘国权,宋月鹏,尹江辉.45#钢零件感应热处理过程温度场的有限元模拟及组织研究.北京科技大学学报,2006,28(7):630-634
    [99]章守华.合金钢.第1版.北京:冶金工业出版社,1981
    [100]W.E.Tolles. Compensation of induced magnetic fields in MAD equipped aircraft. Airborne Instruments Lab.1943
    [101]田民波.磁性材料.第1版.北京:清华大学出版社,2001
    [102]严密,彭晓领.磁学基础与磁性材料.第1版.杭州:浙江大学出版社.2006
    [103]张世远.磁性材料基础.第1版.北京:科学出版社,1988
    [104]周平,冯庆.大学物理(下册).第1版.北京:科学出版社,2012
    [105]李洲圣,唐长红.三维空间张量分析的矩阵方法.第1版.北京:航空工业出版社,2010
    [106]张景鑫,许亚峰,刘明非.磁场空间技术概论.第1版.北京:中国标准出版社,2012
    [107]任来平,张启国,马刚.水下铁磁体的海面磁场计算模型研究.海洋测绘,2004,24(6):16-19
    [108]IAGA Division V, Working Group V-MOD. The 10th-Generation International Geomagnetic. GeophyJ Int,2005,161:561-565
    [109]宋文爱,卜雄洙.工程实验理论基础.第1版.北京:兵器工业出版社,2000
    [110]李玎.基于磁传感器组合的旋转弹体姿态测试方法研究.博士学位论文.南京理工大学,2009
    [111]Gebre-Egziabher D, Elkaim G H, Powell J D, et al. A non-linear, two-step estimation algorithm for calibrating solid-state strapdown magnetometers. Proceedings of the International Conference on Integrated Navigation Systems.2001:28-30
    [112]刘仁浩,王华.数字磁罗盘的全姿态罗差补偿.光学精密工程,2011,19(8):1867-1873
    [113]Ding Li, Song Lin Wo, Xiong Zhu Bu. Twelve-Position Calibrating Method without North Using for Three-Axis Magnetic Sensor. Advanced Materials Research,2012,383:5082-5087
    [114]吴德会,王晓红.基于SVM的传感器动态模型辩识方法.传感技术学报,2006,19(3):716-719
    [115]曲婧.一种基于神经网络求解线性方程组的新方法.山西电子技术,2010,(2):9-10
    [116]Vasumathi B, Moorthi S. Improved neural network algorithms with time-varying Widrow-Hoff learning rule for harmonic estimation. Australian Journal of Electrical & Electronics Engineering,2012,9(4):377-385
    [117]李玎,卜雄洙.基于磁传感器组合的高旋弹横滚角测量方法.南京理工大学学报 (自然科学版),2009,33(3):320-324
    [118]谈乐斌,张相炎,管红根,陈新,戴劲松,陈常顺.火炮概论.第1版.北京:北京理工大学出版社,2005
    [119]苗瑞生,吴甲生.旋转弹空气动力学.力学进展,1987,17(4):479-487
    [120]Changey s, Fleck V, Beauvois D. Projec tile attitude and position determination using magnetic meter sensor only. Intelligent Computing:Theory and Applications. Orlando, USA: SPIE,2005:49-58
    [121]Li Ding, Bu Xiongzhu. Attitude measurement on high-spinning projectile using magnetic sensors and accelerometers. Transactions of Nanjing University of Aeronautics and Astronautics,2008,25(2):106-112
    [122]T.E. Harkins, D.J. Hepner. Magsonde:A device for making angular measurements on spinning projectiles using magnetic sensors, The International Society for Optical Engineering, Orlando, FL, USA, Proceedings of SPIE,2000, (4025):60-67
    [123]T.E. Harkins, D.J. Hepner. Magsonde:A device for making angular measurements on spinning projectiles using magnetic sensors, in:The International Society for Optical Engineering, Orlando, FL, USA, Proceedings of SPIE,2000, (4025):60-67
    [124]闵杰,郭锡福.实用外弹道学.第1版.兵器工业教材编审室.1986
    [125]胡正东,郭才发,张士峰,等.Unscented卡尔曼滤波在飞航导弹地磁导航中的应用.宇航学报,2009,30(4):1443-1448
    [126]孙婷婷,马铁华,沈大伟.嵌入式系统的存储测试技术及无线传输应用.单片机与嵌入式系统运用,2011,11(1):27-29
    [127]周立功,刘银花,夏宇闻.可编程逻辑电路设计基础教程.第1版.北京:北京航空航天大学出版社,2012
    [128]HMC1021/10221 and 2-Axis Magnetic Sensors Data Sheet. Honeywell Inc.2010, http://honeywell.com/sites/cn/Pages/Search.aspx?k=HMC 1021
    [129]AD620 Low Cost Low Power Instrumentation Amplifier Data Sheet. Analog Devices, 2011, Inc. http://www.analog.com/static/imported-files/data_sheets/AD620.pdf
    [130]Cyclone III Device Handbook. Altera Corporation,2012, http://www.altera.com.cn/
    [131]Serial Configuration Devices (EPCS16) Data Sheet. Altera Corporation,2009
    [132]Synchronous DRAM (MT48LC8M16) Data Sheet. Micron Technology, Inc,2001
    [133]ADS836516-Bit,250kSPS 6-Channel Simultaneous Sampling SAR Analog-to-Digital Converters.2008, http://www.ti.com.cn/product/cn/ads8365
    [134]NAND Flash Memory(K9F1G16U0M) Data Sheet. SAMSUNG Electronics, http://www.cecb2b.com/shop/K9F1G16U0M-YCB0_ic_371336_126768626.html
    [135]莫林利.基于FPGA模式的USB接口数据加密系统的设计与实现.计算机与现代化,2005,12(2):66-68
    [136]钱峰.EZ-USB FX2单片机原理、编程及应用.第1版.北京:北京航空航天大学出版社,2006
    [137]Errata document desccribe for CY7C68013/EZ-USB FX2 Data Sheet. Cypress Inc, 2012, http://www.cypress.com/
    [138]AMS11171A Low Dropout Voltage Regulator Data Sheet. AMS Semitech, http://www.ams-semitech.com/page2.php
    [139]王辉,等.MAX+plusⅡ和Quartus Ⅱ应用与开发技巧.第1版.北京:机械工业出版社,2007
    [140]USB仪器控制教程.National Instruments.2009
    [141]司祯祯.傅里叶变换与小波变换在信号去噪中的应用.电子设计工程,2011,19(4):155-157
    [142]D.I.Donoho. De-nosing by Soft Thresholding. IEEE Trans. On Information Theory. 1995,41(5):613-627
    [143]Electromagn, Cortes. C, Santamaria. F. Denoising of lightning electric field signals using fractional Fourier transform. Lightning Protection (ICLP),2012 International Conference on,2012:1-9
    [144]Fan Z, Cai M, Wang H. An improved denoising algorithm based on wavelet transform modulus maxima for non-intrusive measurement signals. Measurement Science and Technology,2012,23(4):045007
    [145]Juan Zou, Shijie Jia, Shaohua Chen. Improved Wavelet Threshold Denoising Method for Railway Signal. Lecture Notes in Electrical Engineering,2012, (138):1383-1390
    [146]孙霞.环氧树脂灌封技术浅析.电子世界.2012,(23):80

© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号

地址:北京市海淀区学院路29号 邮编:100083

电话:办公室:(+86 10)66554848;文献借阅、咨询服务、科技查新:66554700