Min Wang  and  Shuyuan Yang,  Nearfield UWB Pulse Array Beamformer based on Multirate Filter Bank .   journal   = {International Journal of Aerospace and Mechanical Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2007, vol. 2(2). 353 - 356
    [viewed 02 May 2024]. Available from: https://publications.waset.org/pdf/7124.