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一种关于如何制作稳压电源的方法,详细介绍了稳压电源的各个部分,及参数的设计。...
一种关于如何制作稳压电源的方法,详细介绍了稳压电源的各个部分,及参数的设计。-How to make a regulated power supply on the way, described in detail the various parts of the power regulator, and the design parameters.
- 2022-08-17 05:51:13下载
- 积分:1
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在电子技术中,频率是最基本的参数之一,又与许多电参量的测量方案、测量结果都有十分密切的关系,因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测...
在电子技术中,频率是最基本的参数之一,又与许多电参量的测量方案、测量结果都有十分密切的关系,因此频率的测量就显得更为重要。测量频率的方法有多种,其中电子计数器测量频率具有精度高、使用方便、测量迅速,以及便于实现测量过程自动化等优点,是频率测量的重要手段之一。在本次毕业设计中我们选择使用单片机来制作数字频率计,并在实际制作中采用了直接测频法。利用延时产生的时基门控信号来控制闸门,通过在单位时间内计数器记录下的脉冲个数计算出输入信号的频率,最终送入LCD中显示。这样制作出来的频率计不仅可以满足设计题目的参数要求,而且具有了单片机的稳定性和成熟性,且控制能力强,是一种低成本,高可靠的设计方案。-In electronic technology, the frequency is one of the most basic parameters, but also with a number of electrical parameters of the measurement program, the measurement results have a very close relationship between the frequency of measurement, therefore it is even more important. Measurement of the frequency of a number of means, electronic measurement of the frequency counter with high precision, easy to use, rapid measurement, and measurement is easy to realize the advantages of process automation is an important means of measuring the frequency of one. Graduates in this design we have chosen to make use of single-chip digital frequency meter, and used in the actual production of a direct
- 2022-04-18 19:56:54下载
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LDPC编码在OFDM系统中的应用与性能分析
关于LDPC 在OFDM 中的一篇文章...
LDPC编码在OFDM系统中的应用与性能分析
关于LDPC 在OFDM 中的一篇文章-LDPC codes in OFDM System and Performance Analysis of OFDM on the LDPC in an article in
- 2022-01-30 18:59:57下载
- 积分:1
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游戏开发文档设计书:
游戏开发文档设计书:
-game design document files : Documents game design document : document the development of the game design document : Documents game design document :
- 2022-02-25 05:11:11下载
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摘要:实战条件下如何评价短波跳频通信系统的抗干扰性能是构建短波跳频通信系统的重要环rr...
摘要:实战条件下如何评价短波跳频通信系统的抗干扰性能是构建短波跳频通信系统的重要环rr-}J。由于不
能得到精确的指标评价值,采川组合赋权法给出了系统抗干扰性能的评价算法已经不能适川。给出了一种模糊综
合评价方法,该方法有如下优点:为避兔专家赋指标权值的卞观随意性,将德尔菲(Delphi)法和层次分析法(AHP)相结合来确定指标权值 为了便于专家较准确地作出评判,给出了指标评价等级,并利川模糊评价法给出指标评价矩
阵,最后得到评价结果。评价实例表明了该方法的有效性。
-Abstract: how to assess the actual conditions of short-wave frequency-hopping communication system anti-jamming performance is short-wave frequency-hopping communication system to build an important ring rr-) J. Can not be accurate due to evaluate the value of mining Kawasaki combination weighting approach gives a systematic evaluation of anti-interference performance can no longer be appropriate algorithm Chuan. This paper presents a fuzzy comprehensive evaluation method that has the following advantages: In order to avoid the rabbit experts give the right indicator of the value of randomness Bian concept will Delphi (Delphi) and Analytic Hierarchy Process (AHP) to determine the combination of the right indicators value in order to facilitate t
- 2022-03-29 13:14:31下载
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数据迁移
数据迁移是一项繁锁而又单调的工作,面对各种各样的基础数据,定制开发数据迁移工具往往费时费力,切不通用,那么到底什么工具能够胜任我们的工作呢?...
数据迁移
数据迁移是一项繁锁而又单调的工作,面对各种各样的基础数据,定制开发数据迁移工具往往费时费力,切不通用,那么到底什么工具能够胜任我们的工作呢?-data migration data migration is a tedious but monotonous work, in the face of all kinds of basic data Custom development of a data migration tools are often time-consuming and laborious, cut not definitive, in the end what tools we can do the work?
- 2022-05-24 16:45:40下载
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VB开发的三层体系结构与数据库编程原理几示例
VB开发的三层体系结构与数据库编程原理几示例-VB development of the three-tier architecture and database programming principle several examples
- 2022-10-25 08:05:04下载
- 积分:1
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一个大学毕业论文和设计是非常有价值的,值得关注
某学院的毕业设计以及毕业论文
非常参考价值,值得关注-a college graduate thesis and design is very valuable, and worthy of attention
- 2022-02-20 10:38:34下载
- 积分:1
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三相12脉冲转换器电路设计。它对提高是非常有用的…
circuits, design of three phase 12 pulse converter. it is very useful for improving the power factor.-circuits, design of three phase 12 pulse converter. it is very useful for improving the power factor.
- 2022-05-26 09:04:22下载
- 积分:1
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S3C2410 ARM处理器的BootLoader的 VIVI启动说明.
S3C2410 ARM处理器的BootLoader的 VIVI启动说明.-S3C2410 ARM processor BootLoader description of VIVI start.
- 2022-01-26 05:45:24下载
- 积分:1