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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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key_led
用labview来实现矩阵按键和oled屏幕显示。。(Use labview to achieve matrix keys and oled screen display. )
- 2020-07-17 20:48:48下载
- 积分:1
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Labview.chuankou
运用Labview进行虚拟示波器串口设计的源码(The use of Labview virtual oscilloscope serial design source)
- 2008-03-13 08:27:04下载
- 积分:1
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prog10
《Labview高级编程与虚拟仪器工程应用》第10章,关于液压系统测试的源码。包括:
1.“溢流阀动态”测试程序,其中小波变换使用了光盘中提供的VI,来自NI公司的高级信号处理工具包6.1版。“溢流阀动态.vi”是主程序。
2.“液压教学实验台”,“液压测试系统.vi”是主程序。
3.“机油泵”试验程序需要较多外部硬件支持。其中的dll用于国内某一特定品牌扭矩仪。“程序”文件夹的“main.vi”是主程序。
4.“转向泵”试验程序需要外部硬件支持。“程序”文件夹的“转向泵试验.vi”是主程序。(Labview high-level programming and virtual instrument engineering application)
- 2013-12-04 10:35:44下载
- 积分:1
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shuzidianyabiao
基于Labview的数字电压表的设计,可用(ji yu LABview de shuzi dianya biao de she ji )
- 2016-03-24 13:20:23下载
- 积分:1
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ALOHA-MAC
该程序实现了Aloha MAC协议,对于了解协议很有帮助(The program implements Aloha MAC protocol, the protocol is helpful for understanding)
- 2014-08-08 14:28:49下载
- 积分:1
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labview
基于labview的信号分析系统,可以实现频谱分析等多种功能(Labview-based signal analysis system)
- 2014-05-12 22:58:08下载
- 积分:1
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EXCEL 读取
说明: 主要用于labview excel读取(源代码)(Mainly used for reading LabVIEW excel (source code))
- 2020-06-23 09:20:01下载
- 积分:1
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基于声卡的虚拟示波器
基于声卡的虚拟仪器示波器,通过声卡进行数据采集,再由LABview显示波形。(A virtual instrument oscilloscope based on sound card is used to collect data through a sound card, and then the waveform is displayed by LABview.)
- 2018-03-03 18:49:17下载
- 积分:1
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Serial Communication 14
说明: 利用labview操作者框架写的模拟串口通信,非常不错。(The analog serial communication written by the labview operator framework is very good.)
- 2020-06-17 03:00:02下载
- 积分:1