TY - EJOU AU - Chen, Yuan AU - Duan, Liangtao AU - Sun, Weize AU - Xu, Jingxin TI - Two-Dimensional Interpolation Criterion Using DFT Coefficients T2 - Computers, Materials \& Continua PY - 2020 VL - 62 IS - 2 SN - 1546-2226 AB - In this paper, we address the frequency estimator for 2-dimensional (2-D) complex sinusoids in the presence of white Gaussian noise. With the use of the sinc function model of the discrete Fourier transform (DFT) coefficients on the input data, a fast and accurate frequency estimator is devised, where only the DFT coefficient with the highest magnitude and its four neighbors are required. Variance analysis is also included to investigate the accuracy of the proposed algorithm. Simulation results are conducted to demonstrate the superiority of the developed scheme, in terms of the estimation performance and computational complexity. KW - 2-D Frequency estimation KW - parameter estimation KW - interpolation KW - discrete Fourier transform DO - 10.32604/cmc.2020.07115