DBF
释义
数据库文件的扩展名；
权威例句
A study of experimental C-band DBF systemThe application of DBF neural networks for object recognition
Digital beam forming (DBF) antenna system for mobile communications
A DBF self-beam steering array antenna for mobile satelliteapplications using beam-space maximal
Beamforming experiment with a DBF multibeam antenna in a mobile satellite environment
A DBF self-beam steering array antenna for mobile satellite applications using beam-space maximal-ratio combination
A remote calibration for DBF transmitting array antennas by using synchronous orthogonal codes
Two-dimensional RAKE reception scheme for DS/CDMA systems in DBF antenna configuration
Development of 61-Channel Digital Beamforming (DBF) Transmitter Array for Mobile Satellite Communication
Association of RPA with chromosomal replication origins requires an Mcm protein, and is regulated by Rad53, and cyclin- and Dbf4-dep...
1. Save this APR and DBF files.
保存此APR和DBF文件。
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2. DBF module meets the actual requirements.
DBF模块可以满足实际使用要求。
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3. System can realize date exchange by DBF or XML.
系统能够以DBF文件格式或通过XML文档进行数据交换。
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4. Some test and control programs for the DBF system are finished.
依据系统要求，完成DBF接收阵系统的各项测试程序和总控程序；
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5. The paper discussed some problems for DBF application in this area.
本论文探讨了将数字波束形成技术应用于其中需要解决的问题。
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6. Eg. Create tablespace rbstemp datafile '/path/rbstemp01.dbf' size 50M'.
例如，Createtablespacerbstempdatafile '/path/rbstemp01.dbf' size50M'。
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7. The CCAB algorithm of DBF has high convergence rate in the case of relatively high SINR.
数字波束形成算法中，CCAB算法在较高信干噪比条件下具有一定优势。
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8. The digital beamforming (DBF) of the phased array antenna is a key technology of the smart antenna.
阵列天线的数字多波束形成技术是智能天线中的一项重要技术。
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9. DBF receiver module, the key component of future digital beamforming (DBF) radar, is introduced in this paper.
本文介绍下一代数字波束形成(DBF)雷达的关键部件—DBF接收机组件。
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10. The transmitting beam steering and receiving Digital beam Forming (DBF) is the key technology of Digital Radar.
发射波控和接收数字波束形成(DBF)技术是数字化雷达的关键。
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11. This paper present a DBF system which can realize the request of multi-mode working state of phased array radar.
本文介绍的数字 波 束形成系统充分利用现有的硬件技术，实现了雷达在多种工作模式下的波 束实现及 控制要求。
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12. Threshold extension and adaptive noise reduction technology means that noise is 50 dB down for an unmodulated 13.5-dbf stereo signal.
扩展和自适应阈值降噪技术手段，噪音是50分贝下降为未调制的13.5支援数据库立体声信号。
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13. This paper analyses the structure of two-step DBF digital array radar and presents a design method of the realtime signal processing system.
分析了两级DBF收发全数字阵列雷达的结构特点，并针对此类雷达提出了一种实时信号处理机设计方案。
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14. A new digital beam forming (DBF) method is proposed. It combines the parallel delay LMS (PDLMS) algorithm and the field programmable gate array (FPGA).
采用高并行度的并行延时最小均方(PDLMS)算法，用现场可编程门阵列(FPGA)实现自适应数字波束形成模块。
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15. The method can correct the mismatch inside a channel and among channels, and is also suitable for both DBF in array element and DBF in non-uniform subarray.
该方法可对通道内和通道间的失配进行校正，且对由阵元构成的DBF和子阵dBF均适用。
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16. This paper talks about simple methods of maintenance and recovery, including structure recovery and record reading after table files (DBF file) are destroyed.
当表文件(或DBF文件)被破坏后，本文给出了简单的维护恢复的方法，包括结构恢复和记录的读取。
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17. We analyze the pattern function of DBF in subarray under the ideal condition and with channel mismatch, and give the pattern functions of sum and difference beam.
本文分析了子阵dBF在理想通道条件及通道失配情况下的方向性函数，给出了其和差波束方向性函数特性。
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18. The element number and the data quantity of the planar array are quite large, so it is difficult to apply DBF to planar array, and the corresponding study is few.
面阵是雷达系统的主要形式之一，文中主要研究平面相控阵系统的自适应数字波束形成算法。
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19. This paper discusses the design and implementation principles of bridge federate and multi-federations, and presents the concept of Distributed bridge federate (DBF).
研究了桥接成员和多联邦系统的设计与实现原则，并提出了分布式桥接成员(DBF)的概念。
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20. From the point of view of 2-d DBF phased array radar, this paper discusses the influence of channel errors on the system performance and the method for channel balance.
本文针对两维dBF相控阵雷达，探讨窄带情况下通道误差对系统的影响和通道均衡的方法。
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21. This paper analyses the pattern function of DBF in subarray. The designing method for directivity pattern is given and the condition of producing the grating lobe is discussed.
详细分析了由子阵构成的DBF的方向性函数特性，给出了方向图的设计方法，并讨论了其栅瓣产生的条件。
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22. This paper investigates the effects of intermodulation(IM) beams produced by the nonlinear behavior of solid-state power amplifiers(SSPA) on the DBF transmiting multiple-beam array.
研究了DBF发射多波束阵列中固态功率放大器（SSPA）非线性引起的互调波束的影响。
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23. Adaptive digital beamforming (DBF) technique can greatly improve the capability of interference suppress. It's a key technique to improve target detective performance of modern radar.
数字波束形成(DBF)技术能够极大提高雷达系统的抗干扰能力，是新一代军用雷达提高目标检测性能的关键技术之一。
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24. Based on the process of the experiment, analysis about the difficulties in design a SAR with DBF technologies is presented in this paper; provide some reference for the designation later.
并根据实验结果进行了可行性分析及工程实现难点分析，为今后的实际工程实现提供了参考方案和设计依据。
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25. Numerical results show that it is efficient to reduce the sidelobe level of circular array antenna and application examples of the new synthesis technique in adaptive DBF are also presented.
数值结果表明该方法对于降低圆形阵列天线旁瓣是十分有效的。文中还通过数值例子说明了特征矢量综合法在自适应数字波速形成（DBF）算法中的应用效果。
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26. This thesis places emphasis on one of the key techniques of smart antenna - adaptive digital beam forming (DBF) algorithm and its applications in the DS-CDMA mobile telecommunications systems.
本文重点研究智能天线系统的关键技术之一——自适应数字波束形成(DBF)算法在DS - CD MA移动通信系统中的应用。
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27. In receiving mode, through controlling DDS, it produces the local oscillation signal needed by down frequency conversion of the receiving signal. Then the DBF is used to form the receiving beam.
在接收模式下，则利用DDS技术产生接收信号下变频所必需的本振信号，然后采用DBF技术形成接收波束。
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28. From the point of the history of studying literature of Shang han Lun, Using the collecting materials from catalogue works and other literature works, the author save these materials as DBF files.
本文从学术史的角度，以伤寒书目为研究对象，从历代目录学著作及其它文献中收集资料，将收集的伤寒书目保存成数据库文件。
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29. With the rapid development of signal processing technology and micro-electronics technology, Digital Beam Forming (DBF) technique has been widely researched in modern radar and communication systems.
随着信号处理技术和微电子技术的飞速发展，数字波束形成(DBF)技术在现代雷达和通信系统中的应用越来越广泛。
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30. With the rapid development of signal processing technology and micro-electronics technology, Digital Beam Forming (DBF) technique has been widely researched in modern radar and communication systems.
随着信号处理技术和微电子技术的飞速发展，数字波束形成(DBF)技术在现代雷达和通信系统中的应用越来越广泛。
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DBF
