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Radview-Rotor Acoustic Data Acquisition and Processing using the Labview Language

机译：使用Labview语言进行Radview-Rotor声学数据采集和处理

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A multi-channel high-speed acoustic data acquisition and processing system has been implemented using a Macintosh PC plus digitizer cards and the National Instruments LabVIEW graphical programming language. The advantages of the system are low cost, fast prototyping, and highly maintainable code. The system has been used to replace FIT analyzers, with increased channel count at reduced cost. A preliminary version of the system has been used to acquire and process data during several full-scale and model-scale rotor-craft tests in the National Full-Scale Aerodynamics Complex (NFAC) at NASA Ames Research Center. The paper describes the hardware for implementing the system, presents an overview of the data acquisition and data processing algorithm, and details some of the advanced features of the LabVIEW language that were utilized in implementing the program. Plans for improvement and further development of the program are outlined.

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