In order to solve this problem , the ni ( national instrument ) corporation bring forward the term " virtual instrument " and the slogan " software are instruments " . with making use of the powerful calculation ability of computer , and composing of some necessary hardware , the " virtual instrument " break the limit of traditional instrument ' s abilities in field of calculation dsp display and so on . it bring a enormous transform in instrumentation community 为此，美国国家仪器公司( nationalinstrumentcorporation )率先提出了“软件就是仪器”的口号，即利用目前计算机先进快速的处理能力，结合相应的硬件，大大突破了传统仪器的数据处理、显示、传送、存储等方面的限制，给仪器仪表领域注入了新的活力，带来了革命性的变化。
On the basis of the theory of software radio , this paper discusses how to design and develop a realtime digital signal processing system in graphic programming language on a universal hardware workbench of digital signal processing aiming at satellitic intermediate frequency signal 本文论述了基于软件无线电思想，在一个通用的数字信号处理硬件平台上，针对卫星中频信号，用美国国家仪器公司提供的开发虚拟仪器的labview平台研制开发了一个实时的数字信号处理系统。
In the process of building this system , we need two side ' s conditions : on one hand , we must understand the idea of virtual instrument and have a good engineering workbench . for this reason , we use labview ( laboratory virtual instrument engineering workbench ) of national instrument company , which is prevalent , as our engineering workbench . because this , we introduce many applications of virtual instrument and labview 开发这样的系统需要具备两方面的条件：一方面要理解虚拟仪器的概念并拥有一个功能强大的开发平台，为此我们采用了目前比较流行的美国国家仪器公司的labview ( laboratoryvirtualinstrumentengineeringworkbench )作为该系统的软件开发平台，对虚拟仪器和labview进行了介绍。
The improved algorithm has obtained a faster convergence rate and more stability by consuming a little more computation ~ [ 18 ] furthermore , an acoustic echo canceller has been made using tms320c542 ( fix - point dsp ) . the fast lms / newton algorithm has been implemented on this canceller in the real - time processing . it has been proved that fast lms / newton algorithm can obtain a satisfied echo cancellation result ~ [ 17 ] . the implementation of the improved fast lms / newton algorithm is going on in the lab 同时，用德州仪器公司的单片定点dsp ( tm [ s320c542 )构建了声回波对消器的硬件平台，将快速u随s / ne叨仅泊算法应用在实时的声回波对消中，经实时处理验证，该算法不仅龙侄吐了实时处理的要求，而月对回声的抑制达到了满意的效梁切。
This paper completes the design of sr system with the radio frequency band - pass sampling architecture and uses rapid system protot ype method to realizes sr system in tfs tms320c6711dsk board . this method of sr research is the paper ' s innovation 本论文实现了基于dsp硬件平台的射频直接带通采样软件无线电的系统级设计，并运用快速原型的方法在美国德州仪器公司( ti )的tms320c6711dsk板上实现基于dsp平台的软件无线电系统，这主要是一种软件无线电技术研究方法上的创新。
The importation of the epuipment with investment of ove million rmb form sweden perte has enabled bingquan available with world advanced colse infrared analytical system , which can provide timely and accurate data for directing quality control , ensuring stable production in constant and big scale of production for soybean food 投资逾百万元引进瑞典perten仪器公司具有世界先进水平的近红外分析系统，该分析系统能快速测定产品及半成品，原材料的各项质量数据，有效指导生产和提高产品质量。
