虛擬儀器技術（NI）就是利用高性能的模塊化硬件，結合高效靈活的軟件來完成各種測試、測量和自動化的應用。靈活高效的軟件能幫助您創建完全自定義的用戶界面，模塊化的硬件能方便地提供全方位的系統集成，標準的軟硬件平臺能滿足對同步和定時應用的需求。這也正是NI近30年來始終引領測試測量行業發展趨勢的原因所在。只有同時擁有高效的軟件、模塊化I/O硬件和用于集成的軟硬件平臺這三大組成部分，才能充分發揮虛擬儀器技術性能高、擴展性強、開發時間少，以及出色的集成這四大優勢。 軟件是虛擬儀器技術中最重要的部份。使用正確的軟件工具并通過調用特定的程序模塊，工程師和科學家們可以高效地創建自己的應用以及友好的人機交互界面。NI公司提供的行業標準的圖形化編程軟件——NI LabVIEW，不僅能輕松方便地完成與各種軟硬件的連接，更能提供強大的數據處理能力，并將分析結果有效地顯示給用戶。此外，NI還提供了許多其它交互式的測量工具和系統管理軟件工具，例如連接設計與測試的交互式軟件SignalExpress、基于ANSI-C語言的LabWindows/CVI、支持微軟Visual Studio的Measurement Studio等等，這些軟件均可滿足客戶對高性能應用的需求。
上傳時間： 2013-10-17
上傳用戶：Thuan
系統下,地球坐標轉換的源代碼,在WGS-84坐標和北京54坐標之間的一套轉換參數,可以全國通用的，在每個地方會不一樣，因為它們是兩個不同的橢球基準。 // WGS2GK.CPP : C++ version of Ottmar Labonde s WGSDHDN3.PAS with CPU time measurement // compile with MS Visual C++ version 6.0 or do the necessary modifications for your compiler // // Conversion of
上傳時間： 2014-01-09
上傳用戶：hxy200501
一個非常好的時間序列工具箱，詳細使用說明見P. M. T. Broersen, Automatic Spectral Analysis with Time Series Models, IEEE Transactions on Instrumentation and Measurement, Vol. 51, No. 2, April 2002, pp. 211-216.
上傳時間： 2014-01-14
上傳用戶：古谷仁美
紅外線開發資料，紅外線協議，Infrared Data Association Serial Infrared Physical Layer Measurement Guidelines
上傳時間： 2014-12-04
上傳用戶：jjj0202
A self-designed control of PC parallel port communication is introduced in this paper.Taking advantage of the MFC ActiveX technology, it is developed in Visual C++ and offset the scarcity of the control of PC parellel paort communication. An example of frequency measurement shows the detail procedure and application of the control.
標簽： self-designed communication introduced parallel
上傳時間： 2015-12-02
上傳用戶：Miyuki
To estimate the input-output mapping with inputs x ％ and outputs y generated by the following nonlinear, ％ nonstationary state space model: ％ x(t+1) = 0.5x(t) + [25x(t)]/[(1+x(t))^(2)] ％ + 8cos(1.2t) + process noise ％ y(t) = x(t)^(2) / 20 + 6 squareWave(0.05(t-1)) + 3 ％ + time varying measurement noise ％ using a multi-layer perceptron (MLP) and both the EKF and ％ the hybrid importance-samping resampling (SIR) algorithm.
標簽： input-output the generated following
上傳時間： 2014-01-05
上傳用戶：royzhangsz
To fully utilize the available spectrum for a wireless communication system it is feasible to adapt to different situations on the channel. In this paper a flexible OFDM transmitter is presented together with basic theory behind OFDM transmission. It is shown that high flexibility can be obtained with a reasonable amount Flexible baseband transmitter for OFDM of additional hardware. Part of the design, the FFT-processor, has already been fabricated and measurement results are presented.
標簽： communication available feasible spectrum
上傳時間： 2016-03-23
上傳用戶：BOBOniu
Simple VaR Calculator provides: - Evaluation of return distribution of single asset or portfolio of assets - Volatility forecasts using moving average and exponential algorithm - Value at Risk of single asset or portfolio measurement using parametric and historical simulation. - Historical data can be obtained from simple text file or MS Excel using Matlab Excel Links.
標簽： distribution Calculator Evaluation portfolio
上傳時間： 2013-12-21
上傳用戶：hasan2015
A semantic session analysis method partitioning Web usage logs is presented．Semantic W eb usage log preparation model enhances usage logs with semantic．The M arkov chain mode1 based on ontology semantic measurement is used to identi． ing which active session a request should belong to．The corn— petitive method is applied to determine the end of the sessions． Compared with other algorithms，more successfu1 sessions are additionally detected by semantic outlier analysis．
標簽： usage partitioning presented semantic
上傳時間： 2016-08-06
上傳用戶：gxrui1991
With the advent of multimedia, digital signal processing (DSP) of sound has emerged from the shadow of bandwidth-limited speech processing. Today, the main appli- cations of audio DSP are high quality audio coding and the digital generation and manipulation of music signals. They share common research topics including percep- tual measurement techniques and analysis/synthesis methods. Smaller but nonetheless very important topics are hearing aids using signal processing technology and hardware architectures for digital signal processing of audio. In all these areas the last decade has seen a significant amount of application oriented research.
標簽： multimedia processing the digital
上傳時間： 2014-01-23
上傳用戶：xwd2010
