Accession Number : ADP008988

Title :   Burst Digital Correlator for Wide-Band and Low SNR LDV Measurements,

Corporate Author : KOBE UNIV (JAPAN)

Personal Author(s) : Ikeda, Yuji ; Shimazu, Masaki ; Yoshida, Nobutoshi ; Nagayama, Hidenori ; Kurihara, Noboru

Report Date : 23 JUL 1992

Pagination or Media Count : 6

Abstract : This paper describes the development and performance of the Burst Digital Correlator (BDC), which can measure the flow velocity of a low SNR, wide-band, high data rate. The performance was evaluated for the wide-band oscillating recirculating flow and near-wall flow. The measured results show that the BDC can process the signals of a bandwidth of 5 to 100 MHz, with a data rate over 86 KHz to an accuracy of less than 0.1%. (Author)

Descriptors :   *LASER VELOCIMETERS, *OPTICAL CORRELATORS, DATA RATE, SIGNAL TO NOISE RATIO, SHEAR PROPERTIES, DATA REDUCTION, JAPAN.

Subject Categories : Test Facilities, Equipment and Methods
      Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE