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Crosstalk is a key factor that can cause performance degradation in VDSL2. Balancing the transmit power spectra refers to as spectrum management to diminish the impact of crosstalk. The distributed band-preference spectrum management (DBPSM) adopts a bit-moving process to highlight the data rates of weak users. However, it still leaves room for improvement. This paper proposes a new tone and band...
Otsu adaptive thresholding is widely used in classic image segmentation. Two-dimensional Otsu thresholding algorithm is regarded as an effective improvement of the original Otsu method. To reduce the high computational complexity of 2D Otsu method, a fast algorithm is proposed based on improved histogram. Two-dimensional histogram is projected onto the diagonal, which forms 1D histogram with obvious...
Focusing on nonlinear/non-Gaussian filters and based on analysis of the sampling-importance-resampling algorithm, this paper examines principles and application of particle filter (PF) in satellite orbit determination. There may be large error of initial estimation and non-Gaussian distribution of state and measurement in satellite orbit determination. To solve the two problems, an improved PF algorithm...
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