[1] KURNIADI D, TRISNOBUDI A. A multi-path ultrasonic transit time flow meter using a tomography method for gas flow velocity profile measurement ［J］. Particle & Particle Systems Characterization, 2006, 23(3-4): 330-338.

[2] CHUN S, YOON B R, LEE K B. Diagnostic flow metering using ultrasound tomography ［J］. Journal of Mechanical Science and Technology, 2011, 25(6): 1475-1482.

[3] RYCHAGOV M N, RUCHKIN S V, TERESHCHENKO S A, et al.. Imaging of fluid flow by tomographic reconstruction using enhanced multipath ultrasonic measurements ［C］. Proceedings of the IEEE Ultrasonics Symposium, Honolulu, USA, IUS, 2003: 803-806.

[4] TEERAWATANACHAI S, KOMIYA K, SASAMOTO H, et al.. An ultrasonic tomography for reconstructing the velocity profile of air flow from nonuniformly spaced projection data ［J］. Trans. of the Society of Instrument and Control Engineers, 1992, 28(11): 1274-1281.

[5] WANG B X, CUI Y Y, LIU J N, et al.. Pipeline flow velocity imaging and flow measuring method based on ultrasonic: China, 201210100169［P］. 2012. (in Chinese)

[6] JAAFAR W, FISCHER S, BEKKOUR K. Velocity and turbulence measurements by ultrasound pulse Doppler velocimetry ［J］. Measurement, 2009, 42(2): 175-182.

[7] SKUPSCH C, BRCKER C. Multiple-plane particle image velocimetry using a light-field camera ［J］. Optical Express, 2013, 21(2): 1726-1740.

[8] WANG SH, ZHANG ZH R, SHAO J, et al.. Denoising of PLIF images for flow parameter measurement ［J］. Opt. Precision Eng., 2013, 21(7): 1858-1864.(in Chinese)

[9] WOLF D, LUBK A, LICHTE H. Weighted simultaneous iterative reconstruction technique for single-axis tomography ［J］. Ultramicroscopy, 2014, 136: 15-25.

[10] YANG Q, DENG B, LV W, et al.. Fast and accurate X-ray fluorescence computed tomography imaging with the ordered-subsets expectation maximization algorithm ［J］. Journal Synchrotron Radiation, 2012, 19: 210-215.

[11] KAK A C, SLANEY M. Principles of Computerized Tomographic Imaging ［M］. New York: IEEE Press, 1988.

[12] MOORE P I, BROWN G J, STIMPSON B P. Ultrasonic transit-time flowmeters modelled with theoretical velocity profiles: methodology ［J］. Measurement Science and Technology, 2000, 11: 1802-1811.

[13] WU X J, HUANG G X, WANG J W. Application of particle filtering algorithm to image reconstruction of ECT ［J］. Opt. Precision Eng., 2012, 20(8): 1824-1830.(in Chinese)

[14] KALPAKLI A, RL R. Turbulent pipe flow downstream a 90° pipe bend with and without superimposed swirl ［J］. International Journal of Heat and Fluid Flow, 2013, 41:103-111.