Substrate noise coupling and impacts on RF integrated circuits (RFICs) have been intensively studied for intending a single chip solution of wireless communication systems. On-chip measurements characterize noises fro...
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We demonstrate for the dual-mode wavelength conversions based on FWM for optical OFDM signals with coherent detection in a silicon waveguide. Experimental results show that only small power penalties are observed afte...
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In order to solve the problem of rapid switching of space equipment in the cultural complex, this paper combines Moth-Flame optimization Algorithm (MFO) and Dynamic Window Approach (DWA) to realize the hybrid path pla...
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Substrate noise coupling and impacts on RF integrated circuits (RFICs) have been intensively studied for intending a single chip solution of wireless communication systems. On-chip measurements characterize noises fro...
Substrate noise coupling and impacts on RF integrated circuits (RFICs) have been intensively studied for intending a single chip solution of wireless communication systems. On-chip measurements characterize noises from digital parts of mixed-signal ICs in terms of noise generation as well as noise propagation through a silicon substrate, demonstrated by silicon results with sub-100 nm CMOS test vehicles. Simulation and emulation help further understanding of the interference of such noises with RFIC operation as well as their impacts on RF communication.
This paper provides two construction methods of sequence using the Gray mapping. In the first method, a quaternary sequence with Rmax = 2 for N ≡ 2 (mod 4) which is the same as the best known Rmax, is proposed. The s...
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ISBN:
(纸本)9781424463725
This paper provides two construction methods of sequence using the Gray mapping. In the first method, a quaternary sequence with Rmax = 2 for N ≡ 2 (mod 4) which is the same as the best known Rmax, is proposed. The sequence is constructed by the Gray mapping of a binary sequence with even period and its half-period shift. The resulting quaternary sequence has the same autocorrelation distribution with that of the employed binary sequence. From binary sequences with optimal autocorrelation for even period such as Sidel'nikov sequences, Ding-Helleseth-Martinsen (DHM) sequences, and sequences from the images of polynomials, etc., we can construct quaternary sequences with Rmax = 2 for period N ≡ 2 (mod 4) and R max = 4 for period N ≡ 4 (mod 4). In constrast to the previous quaternary sequences separately designed, new quaternary sequences are constructed from many existing binary sequences with optimal autocorrelation. In the second construction, optimal quaternary LCZ sequence sets are derived from binary LCZ sequence sets which are not necessarily optimal. To the best of our knowledge, it is the first result to obtain an optimal LCZ sequence set from a non-optimal LCZ sequence set, while there are constructions to obtain LCZ sequence sets from another LCZ sequence set. Moreover, since the parameters of new quaternary LCZ sequence set in the second method are determined by the parameters of the binary LCZ sequence set, it is possible to obtain flexible quaternary LCZ sequence sets by using flexible binary LCZ sequence sets.
The focus of this paper is on the segmentation algorithm for the high resolution multispectral imagery to get regions which are roughly corresponding to land cover types. We propose the combination of spectral feature...
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The focus of this paper is on the segmentation algorithm for the high resolution multispectral imagery to get regions which are roughly corresponding to land cover types. We propose the combination of spectral features and spatial features by Gabor filter banks and a variable mean shift clustering algorithm in high dimension is employed to achieve feature fusion. Some issues on the measure metric of different features and standilzation are discussed. The whole algorithm is evaluated on the synthetic texture image, which are cropped from a QuickBird image with typical land-cover types. Compared with fixed bandwidth Mean Shift segmentation algorithm, our method has better performance in distinguishing the different land cover types with similar spectral surface.
Personal computers (PC) and gadgets have recently become increasingly associated with the Internet. Internet Protocol (IP) has become the driving force for a decade for which devices and organizations tend to rely as ...
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