共查询到17条相似文献,搜索用时 46 毫秒
1.
本文针对如何通过33220A函数/任意波形发生器的LAN接口实现网络控制问题,介绍了其LAN接口DHCP、IP Address、Subnet Mask、Default Gateway、Host Name、DNS Server等参数的含义、设置方法及充分利用了其内部提供的远程前面板接口功能,不需要编写任何程序就可以达到远程控制其输出的方法,该方法利用了仪器本身资源,达到了通过GPIB控制函数/任意波形发生器的同样效果,读者可以直接利用其功能组建分布式测试系统,避免程序设计中繁琐调试过程,对程序设计者具有很高参考借鉴价值。 相似文献
2.
通过LAN控制TDS3032B实现脉冲参数测量 总被引:1,自引:1,他引:1
针对如何通过TDS3032B示波器的LAN接口,实现脉冲频率、脉冲宽度、脉冲延时测量问题,本文描述了利用VISA函数通过LAN接口,在LabVIEW8.5开发环境下,根据测量功能的不同,发送不同的程控命令码,实现脉冲参数测量程序设计方法,该方法节约了购买Tektronix TDS3GV模块的经费,充分开发利用了仪器本身资源,达到了通过GPIB接口控制示波器的同样效果,读者可以直接利用程序中的原代码,避免程序设计中繁琐调试过程。应用证明此方法简单实用,对程序设计者具有参考借鉴价值。 相似文献
3.
综合业务数字网具有容易访问公用电话交换网且传输容量大、可靠性高等特性。文中描述由ISDN实现LAN的远程互连技术,重点是互连用的网关,其中主要讨论了网关协议接口层以及流控制和拥塞,提出了网关的软件结构 相似文献
4.
5.
LAN上实现Mpeg通信系统的研究与尝试 总被引:2,自引:0,他引:2
本文讨论了多媒体通信系统的最新发展、设计和实现,给出了在TCP/IP协议下实现Mpeg通信的设计框架,并详细阐述了实现中的一些关键性问题。 相似文献
6.
本文讨论了多媒体通信系统的最新发展,设计和实现,给出在TCP/IP协议下实现Mpeg通信的设计框架,并详细阐述了实现中的一些关键性问题。 相似文献
7.
在PC屏幕监测3032B测量波形的程序设计方法 总被引:1,自引:1,他引:0
随着网络控制技术的不断发展,LAN网络接口已在智能仪器中得到了应用,并成为标准的配置接口,本文以Tek3032B示波器为例,叙述了在LabVIEW8.5开发环境下利用Tektronix_tds_3000_series示波器驱动程序编程,通过LAN网口现实对其进行控制并将其测量波形在PC屏幕进行监测的程序设计方法,该方法充分利用了远距离传输控制的网络特性,对开发利用仪器已有的程控功能,避免不必要的资源浪费具有意义,对从事自动测试程序设计者具有参考借鉴价值. 相似文献
8.
9.
10.
李北平 《电子产品维修与制作》2009,(5):52-53
办公室网络结构如图1所示,办公室1内的所有计算机通过具有交换机功能的路由器搭建了一个局域网,并通过路由器的NAT功能将局域网的IP地址转换为上级网管配发的IP地址上网,办公室上网为包年计费模式。 相似文献
11.
12.
13.
In this paper, we address the image restoration case that includes both blurring and impulse noise. To recover an image with abundant features, we propose an L0 regularized cartoon-texture model for the simultaneous deblurring and impulse noise removal problem. We propose an L0 regularized framelet-based sparse representation and L0 regularized discrete cosine transform (DCT)-based sparse approximation to model the cartoon and texture of images, respectively. Unlike other cartoon-texture decomposition based-restoration approaches, our method does not depend on local features but globally controls the important non-zero components of the cartoon and texture in the framelet and DCT domain. Furthermore, we develop an alternating half-quadratic splitting method to solve the proposed L0 regularized cartoon-texture deblurring and impulse noise removal model (L0_RCTDINR) by introducing an alternating algorithm into the half-quadratic method. Experiments show the effectiveness of L0_RCTDINR on deblurring and impulse noise removal compared with existing state-of-the-art methods. 相似文献
14.
15.
16.
17.
Space communications with variable elevation angle faded by rain: Radio links to the Sun–Earth first Lagrangian point L1 下载免费PDF全文
Emilio Matricciani 《International Journal of Satellite Communications and Networking》2016,34(6):809-831
How rain attenuation affects space links with variable elevation angles is not yet fully researched. The aim of this paper is to investigate this topic by simulating rain attenuation at Ka Band, in slant paths with variable elevation angles, with the Synthetic Storm Technique (SST), in links connected with spacecrafts at the Sun–Earth first Lagrangian point L1, viewed from Spino d'Adda (Italy), Tampa (Florida), White Sands (New Mexico). The input to the SST is a large database of time series of 1‐min rain rate recorded on site, 10 years in Spino d'Adda, 4 years at Tampa and White Sands. After recalling known results on the elevation angle of the Sun (i.e. L1), θs (°), seen from latitude λ (°), I report what seems to be a new result: the mode of the probability density function of θs in a year, in the range 0 ≤ λ ≤ 90° ? ε (Earth axis tilt angle ε = 23.44°), coincides with the peak angle found at the day of the Winter solstice at the site, a result valid also for other planets, once their tilt angle is used. Compared to the complementary probability distribution function (pdf) of rain attenuation calculated for a geostationary (GEO) link (fixed elevation angle), the pdf to L1 depends on the rain‐rate pdf during the contact time with L1, according to the local climate. I show that, to obtain a good and easier estimate of the rain attenuation pdf in L1 links, we can consider a GEO link with elevation angle equal to the mean angle and rain rate pdf, both during the contact time, and that the mode angle gives an upper bound to the rain attenuation pdf in the sites considered. Copyright © 2015 John Wiley & Sons, Ltd. 相似文献