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asd
航空航天通信技术一般采用模拟通信的频率调制和数字通信的移相键控调制方法。这有利于充分应用信道带宽和能源。频率调制是在一定程度上改变载波或副载波的频率来传输信息的调制方法。移相键控调制是利用载波或副载波的相位跳变来传输信息的调制方法。移相键控又分二相移相键控、四相移相键控和多相移相键控,其中以四相移相键控和八相移相键控调制方法的效率较高(Aerospace communications technology commonly used analog communication of frequency modulation and the digital communication phase shift keying modulation method. This is helpful for making full use of channel bandwidth and energy. Frequency modulation is changed to some extent carrier or subcarrier frequency to transmit information modulation method. Phase shift keying modulation is the use of carrier or subcarrier phase jump to transmit information modulation method. Phase shift keying and binary phase shift keying, four phase shift keying and multiple phase shift keying, of which four phase shift keying and eight phase shift keying modulation method of high efficiency
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- 2011-07-13 11:21:08下载
- 积分:1
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多通道数据采集系统毕业设计
本设计采用了虚拟的NI-PCI 6221数据采集卡,利用虚拟仪器及其相关技术实现了多通道数据采集。该系统具有多路采集、实时显示、存储管理与密码保护等功能。(This design uses a virtual NI-PCI 6221 data acquisition card, using virtual instruments and related technologies to achieve multi-channel data acquisition. The system has many functions, such as multi-channel acquisition, real-time display, storage management and password protection.)
- 2017-11-25 20:39:58下载
- 积分:1
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LabView的任意信号发生器
说明: 基于LabVIEW的数字电压表设计。 1.掌握数字电压表的基本原理和方法; 2.基于LabView设计数字电压表并实现;(Design of digital voltmeter based on LabVIEW. 1. Master the basic principles and methods of digital voltmeter; 2. Design and implement digital voltmeter based on LabView;)
- 2019-06-30 19:25:29下载
- 积分:1
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1-myRIO-8.30
利用MyRio,发出指定脉冲数,来控制电机(Using MyRio, the number of the specified pulse is issued to control the motor.)
- 2021-05-14 03:30:02下载
- 积分:1
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pinlvxiangying
实时求解振动信号的频率响应,可以用在数据采集过程中实时观察振动信号的频率响应(Frequency response in real time to solve the vibration signal can be used in the data collection process in real-time observation of the frequency response of the vibration signal)
- 2015-01-13 11:18:07下载
- 积分:1
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船舶运动可视化仿真平台
说明: 此范例说明 了在LABVIEW平台下进行船舶运动可视化仿真平台(This example illustrates the ship motion visualization simulation platform in LABVIEW platform)
- 2020-06-22 21:00:01下载
- 积分:1
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EMMD analysis
对(极值域均值经验模态分解)EMMD算法的实现(Implementation of EMMD algorithm)
- 2020-06-20 09:00:01下载
- 积分:1
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gaojichuankouduxiechengxu
高级串口读写程序,可以实现串口数据的读写(Advanced Serial literacy program)
- 2013-05-23 23:16:10下载
- 积分:1
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周立功CANPRO-II
周立功canpro-II的源代码。学习下(Week canpro-II source code. Under study)
- 2021-01-18 15:58:43下载
- 积分:1
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Autocorrelation
自相关算法的labview实现,需要设计相关参数。(Labview autocorrelation algorithm to achieve)
- 2013-10-24 16:37:36下载
- 积分:1