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在无线通信中使用跳频技术是军事通信中最主要的抗干扰手段之一, 而如果系统中能使用合适的中心频率可以快速跟踪跳频变化的带通滤波器将可以明显改善系统的抗干扰性能。文...
在无线通信中使用跳频技术是军事通信中最主要的抗干扰手段之一, 而如果系统中能使用合适的中心频率可以快速跟踪跳频变化的带通滤波器将可以明显改善系统的抗干扰性能。文中从实际应用出发, 比较了几种可用于实现带通滤波器快速变频的方案, 选择了简单、实用的开关电容阵改变带通滤波器中心频率的方案-The use of frequency hopping in wireless communication technology is the most important anti-jamming in military communications, one of the means, and if the system can use the appropriate center frequency can be fast-tracked changes in frequency-hopping band-pass filter will be able to significantly improve the system anti-jamming性能. This paper from the actual application, the comparison of several band-pass filter can be used to achieve the rapid conversion of the program, choose a simple, practical switched capacitor array to change the center frequency of band-pass filter program
- 2022-10-28 01:20:03下载
- 积分：1
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这篇文档详细讲述了选用嵌入式实时操作系统时应该注意的事项,...
这篇文档详细讲述了选用嵌入式实时操作系统时应该注意的事项,-This document described in detail the selection of embedded real-time operating system should note,
- 2022-11-02 23:10:08下载
- 积分：1
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kdjf.kjdkjfl kdjf ljdf lkjdslkjf.,jml.m.,m l jlmlmj ll djhfjdshjfhdsjhfjsd
- 2022-03-30 11:59:49下载
- 积分：1
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w3c搞的wap标准资料推荐，非常好的参考资料
w3c搞的wap标准资料推荐，非常好的参考资料-w3c engage in the recommended standard data wap
- 2022-02-25 02:10:37下载
- 积分：1
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itkITK主要做图像的预处理，如滤波，分类，分割，配准，算法很多。本文详细介绍了itk的gui界面设计方面...
itkITK主要做图像的预处理，如滤波，分类，分割，配准，算法很多。本文详细介绍了itk的gui界面设计方面-Main itkITK to do image preprocessing, such as filtering, classification, segmentation, registration, many algorithms. This paper introduces in detail itk the gui interface design
- 2022-04-23 18:08:32下载
- 积分：1
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包括了ＡＲＭ的bootload的详细介绍，详细分析了ＵＢＯＯＴ的移植和编写．另外还介绍了ＡＲＭ＿ＬＩＮＵＸ驱动的编写...
包括了ＡＲＭ的bootload的详细介绍，详细分析了ＵＢＯＯＴ的移植和编写．另外还介绍了ＡＲＭ＿ＬＩＮＵＸ驱动的编写-err
- 2023-02-23 07:10:04下载
- 积分：1
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Huffman tree. tree with the right path length is the meaning of the various char...
哈夫曼树中,树的带权路径长度的含义是各个字符的码长与其出现的此时的乘积和,
也就是电文的代码总长,所以采用哈夫曼树构造的编码是一种能使电文代码总长最短的
不等长编码。-Huffman tree. tree with the right path length is the meaning of the various characters code length of time with the product and, is the message code chief Therefore, the tree structure used Huffman coding can be a code message from the chief of the shortest length coding.
- 2022-11-03 06:40:03下载
- 积分：1
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xilin provided by the test documents, XILINX used for the CPLD/FPGA users quite...
这是由xilin公司提供的测试文档，对于用XILINX公司的CPLD/FPGA的用户来说挺不错的。-xilin provided by the test documents, XILINX used for the CPLD/FPGA users quite well.
- 2022-02-10 03:32:12下载
- 积分：1
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步完善打卜了一定基础。
以及进行组态。因此构建一个在工业过程监控中应用的系统平台。在
系统开发中在国内我们首次将PI}FIBLTS现场总线技术通过代/104总
线与WIDE操作系统和运行在WINCE操作系统上的组态软件IV}GSE结
合起来，进行了全新的研究尝试，少}取得了一定成果，为系统的进-
步完善打卜了一定基础。
-As well as configuration. So to build a industrial process monitoring application system platform. In System Development in China the first time, we will be PI) FIBLTS fieldbus technology generation/104 bus and WIDE in the WINCE operating system and run the configuration software operating systems IV) GSE combine a new study try, less) achieved certain results, for the system into- further improve the playing BU a certain foundation.
- 2022-08-02 22:03:48下载
- 积分：1
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With regard to PCI bridge chip design, a total of nine documents, a comprehensiv...
关于PCI桥芯片的设计，共9篇文档，全面介绍了各种系统中桥芯片的使用-With regard to PCI bridge chip design, a total of nine documents, a comprehensive introduction to a variety of systems in the use of bridge chips
- 2023-05-20 13:30:04下载
- 积分：1
