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We studied the LO linewidth limitation for a 16-QAM WDM coherent system. The simulation shows that the linewidth should be less than 500 KHz for ≥ 100 Gb/s over 300 km dispersion managed fiber link.
In computer-aided design systems and virtual reality, the computation of distance between two objects is required. The problem of distance computation has been well studied for polyhedral objects in the past years. However, the curve surfaces of objects are often approximated by polyhedral, suffering from accuracy problem due to approximation errors. In order to improve the accuracy, the surfaces...
In this correspondence, we analyze the propagation of orthogonality error for fast Rayleigh's quotient-based adaptive noise subspace algorithm (FRANS) and FRANS with Householder transformation (HFRANS). First, we examine the propagation of orthogonality error for the numerically unstable FRANS in the mean and in the mean-square sense. Then, an upper bound on orthogonality error is derived for the...
In this paper, we analyze the propagation of orthogonality error for fast Rayleighpsilas quotient based adaptive noise subspace algorithm (FRANS). First, we examine the propagation of orthogonality error for the numerically unstable FRANS in the mean and in the mean-square sense. Then, numerically stable FRANS with householder transformation (HFRANS) is studied through simulation as an improvement...
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