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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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National Undergraduate Electronic Design Contest winning entries selected :1994
全国大学生电子设计竞赛获奖作品精选：1994-1990_11039843.rar-National Undergraduate Electronic Design Contest winning entries selected :1994-1990_11039843. Rar
- 2022-02-27 06:41:24下载
- 积分：1
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I wrote an introduction renesas DVP
本人写的一篇介绍基于renesas DVP－M平台LCD TV系统结构的论文。
-I wrote an introduction renesas DVP-M-based platform for LCD TV system architecture thesis.
- 2023-08-25 06:15:03下载
- 积分：1
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介绍了管理信息系统的开发过程，从可行性分析、需求分析、概要设计、详细设计到实现、组装测试、确认测试。...
介绍了管理信息系统的开发过程，从可行性分析、需求分析、概要设计、详细设计到实现、组装测试、确认测试。-Describes the management information system development process, from feasibility analysis, needs analysis, outline design, detailed design to implementation, assembly and testing, verification testing.
- 2022-02-10 13:06:14下载
- 积分：1
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This article: FPGA method used to simulate the high dynamic (Global Position Sys...
本文：采用了FPGA方法来模拟高动态(Global Position System GPS)信号源中的C／A码产生器。C／A码在GPS中实现分址、卫星信号粗捕和精码(P码)引导捕获起着重要的作用，通过硬件描述语言VERILOG在ISE中实现电路生成，采用MODELSIM、SYNPLIFY工具分别进行仿真和综合。-This article: FPGA method used to simulate the high dynamic (Global Position System GPS) signal source of the C/A code generator. C/A code in GPS to achieve sub-sites, the satellite signal capture coarse and fine code (P code) lead capture plays an important role, through hardware description language Verilog in ISE to achieve circuit to generate, using MODELSIM, SYNPLIFY simulation tools were and integrated.
- 2022-02-05 10:44:00下载
- 积分：1
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TMS320F240 evaluation board hardware design document. Can the series of DSP hard...
TMS320F240评估板硬件设计文件。可以为该系列的DSP硬件设计提供十分有用的参考电路设计。-TMS320F240 evaluation board hardware design document. Can the series of DSP hardware design and provides very useful reference for circuit design.
- 2022-01-24 16:15:35下载
- 积分：1
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QPSK Modulator FPGA, presents a FPGA
QPSK调制器的FPGA实现，提出了一种基于FPGA实现QPSK的方法-QPSK Modulator FPGA, presents a FPGA-based QPSK method of achieving
- 2022-02-11 17:10:03下载
- 积分：1
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Java卡片技术
基于Java卡技术的PKI网络安全解决方案，介绍了该系统的构成、功能和应用领域-Java Card technology-based PKI network security solutions, introduced the system components, functions and applications
- 2022-08-14 06:30:05下载
- 积分：1
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a general informaiton about vsworks
a general informaiton about vsworks
- 2022-07-24 11:29:53下载
- 积分：1
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学生成绩管理工作是学校学生管理工作的重要组成部分，现在相当一部分学校的学生成绩管理工作仍沿用手工方式。随着学校规模的扩大、学生人数的增加，效率低下、容易出错的手...
学生成绩管理工作是学校学生管理工作的重要组成部分，现在相当一部分学校的学生成绩管理工作仍沿用手工方式。随着学校规模的扩大、学生人数的增加，效率低下、容易出错的手工方式越来越不适应实际管理工作的需要，按照软件工程原理和数据库技术开发学生成绩管理系统已成为学生管理部门的迫切需要。-student performance management is the management school students an important component, considerable part of the school management of student achievement is still used manual. With the increased scale of the schools, the number of students increases, inefficient and error-prone manual increasingly unable to meet the actual needs of management, in accordance with principles of software engineering and database technology student performance management systems have become students of management an urgent need.
- 2022-02-26 12:01:48下载
- 积分：1
