Design of FMCW Radar Data Acquisition and Signal Processing System Based on Labview

2014 ◽  
Vol 496-500 ◽  
pp. 1881-1884 ◽  
Author(s):  
Jian Wei Leng ◽  
Chuan Bin Shan
Keyword(s):  
Signal Processing ◽  
Data Acquisition ◽  
Virtual Instrument ◽  
Processing System ◽  
Test System ◽  
Signal Source ◽  
Frequency Signal ◽  
Signal Processing System ◽  
Fmcw Radar ◽  
Data Acquisition Card

For virtual instrument technologys character of high performance, easy to implement hardware and software integration, etc., virtual instrument technology and Labview are applied to test fields. Using computer and NI PCI-6221 data acquisition card as the hardware and LabVIEW8.5 software as a development platform, a data acquisition and signal processing virtual test system is built. The system is consisted of signal source and the signal processing module, in which the signal source is he FMCW radar level differential frequency signal connected by data acquisition card; signal processing section includes a time-domain measurement signal source, waveform display, filtering, spectral analysis, etc. Connecting, analysis and processing of FMCW radar level meter difference frequency signal are completed.

Application of VC++ and MATLAB Mixed-Programming Based on MATCOM in Signal Processing

2012 ◽  
Vol 201-202 ◽  
pp. 61-64 ◽  
Author(s):  
Long Zhang ◽  
Guo Ying Zeng ◽  
Deng Feng Zhao ◽  
Hong Qiang Zeng
Keyword(s):  
Signal Processing ◽  
Data Processing ◽  
Data Acquisition ◽  
Processing System ◽  
Visual Programming ◽  
Signal Processing System ◽  
Matlab Software ◽  
Vibration Signals ◽  
Mixed Programming ◽  
Data Acquisition Card

By research of the mix technology of VC++ and Matlab based on Matcom software, the insufficiencies of data processing in VC++ and visual programming in Matlab have been sloved effectively in signal processing. The own definition functions by matlab can be converted to the C code with Matcom,then the functions can be called anywhere if you need.Using this mix technology, the vibration signals collected by UA307 data acquisition card have been transformed by FFT and the results are consistent with Matlab’s. The mixed-program can operate independently without Matlab software and this method is a good reference to the development of the signal processing system.

scholarly journals Novel Control Platform Development for PMLSM Drive System Based on Virtual Instrument

2013 ◽  
Vol 416-417 ◽  
pp. 530-535
Author(s):  
Jian Xun Jin ◽  
Wei Xu ◽  
Yan Chen ◽  
You Guang Guo ◽  
Jian Guo Zhu
Keyword(s):  
Data Acquisition ◽  
Virtual Instrument ◽  
Digital Signal Processor ◽  
Pulse Width Modulation ◽  
Digital Signal ◽  
Drive System ◽  
Signal Source ◽  
Computational Capability ◽  
Data Acquisition Card ◽  
Platform Development

A novel control platform for the permanent magnet linear synchronous motor (PMLSM) drive system has been built up based on virtual instrument (VI) and relavant data acquisition card (DAQ) devices. In the traditional control platform, it mostly depends on digital signal processor (DSP), which needs a lot of time to further develop the interface between the personal computer (PC) and operators, and its computational capability is not strong than computer. To overcome these shortages, a novel control platform is presented on the base of one PC, one LabVIEW, and one multifunctional data acquisition card. Firstly, a space vector pulse width modulation (SVPWM) signal source is executed in the VI. Then in order to improve the precision of control system, the field oriented control (FOC) is proposed for the PMLSM. Finally comprehensive experiments verify with relative simulations.

Signal Processing System of Circuit Breaker Based on Virtual Instrument

2014 ◽  
Vol 687-691 ◽  
pp. 4132-4135
Author(s):  
Shu Tao Zhao ◽  
Dan Jiang ◽  
Xian Ping Zhao ◽  
Jian Feng Ren ◽  
Yu Tao Xu
Keyword(s):  
Signal Processing ◽  
Time Domain ◽  
Virtual Instrument ◽  
Wavelet Decomposition ◽  
Circuit Breaker ◽  
Processing System ◽  
Signal Processing System ◽  
Multiple Signals ◽  
Accurate Judgment

In order to monitor the operating status of the circuit breaker, designed a multi-signal processing system based on the labview. The system acquisite multiple signals synchronous, and combined with MATLAB. Signal feature is extracted with time domain eigenvalues, EEMD decomposition, wavelet decomposition, and finally sent into ELM. The results demonstrate: that the system can achieve the accurate judgment of the operation state of the circuit breaker.

Cavity Beam Position Monitor Test System Based on Virtual Instrument

2013 ◽  
Vol 333-335 ◽  
pp. 2354-2357
Author(s):  
Bao Peng Wang ◽  
Yong Bin Leng ◽  
Wei Min Zhou ◽  
Lu Yang Yu ◽  
Ying Bing Yan
Keyword(s):  
Virtual Instrument ◽  
Processing System ◽  
Test System ◽  
Beam Position Monitor ◽  
Signal Processing System ◽  
Beam Position ◽  
Instrument Control ◽  
Instrument Technology ◽  
Soft Architecture ◽  
Cavity Beam Position Monitor

Based on the virtual instrument technology, a dedicated test system has been developed for cavity beam position monitor (CBPM). The system consists of commercial nanopositioning stage and its controller, the analog output DAQ card based on PXI and network analyzer. In the LABVIEW environment, software which implemented function of instrument control and data acquisition based on virtual instrument soft architecture (VISA) has been developed. Experimental results illustrated that the test system achieved positioning precision of sub micron which meets requirement of test of CBPM. Also it could serve CBPM signal processing system.

Construction and Realization of Networked Virtual Test System Based on LabVIEW

2011 ◽  
Vol 201-203 ◽  
pp. 2091-2095 ◽  
Author(s):  
Gong Xuan Cai
Keyword(s):  
Remote Control ◽  
Data Acquisition ◽  
Virtual Instrument ◽  
Processing System ◽  
Test System ◽  
Control Technology ◽  
Virtual Test ◽  
Data Acquisition And Processing ◽  
Construction Mode ◽  
Virtual Data

This paper analyses the construction mode and the structure composition of hardware and software of networked virtual test system; explores solutions and realization technology for LabVIEW-based networked virtual test; carries out researches on remote control technology of networked virtual instrument; develops the networked virtual data acquisition and processing system based on LabVIEW; realizes the acquisition, transmission and processing of remote data as well as the remote control of the running state of virtual instrument.

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