Orthogonal Frequency Division Multiplexing (OFDM) systems may suffer from both carrier frequency offset (CFO) and in-phase/quadrature-phase (I/Q) imbalance at the receiver front end. In this paper, a novel type of int...
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Orthogonal Frequency Division Multiplexing (OFDM) systems may suffer from both carrier frequency offset (CFO) and in-phase/quadrature-phase (I/Q) imbalance at the receiver front end. In this paper, a novel type of intercarrier interference (ICI) self-cancellation method using mirror mapping is proposed to combat these impairment. Based on the proposed novel method and by adopting two widely used mapping operations, we altogether derive two different mirror mapping schemes. Analysis and simulation results verify that the proposed mirror mapping schemes not only inherit the efficiency of the existing self-cancellation schemes in suppressing ICI caused by CFO but also have the ability of compressing or even eliminating IQ imbalance.
To eliminate interference within electrocardiogram signal (ECS) recorded under complicated Power Line (PL) circumstances, a novel algorithm is proposed. ECS is divided into two parts, linear segment and the nonlinear ...
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Network topology inference, one of the studies of the network tomography, is the proposition of the network link-level performance inference. MLE and grouping methods recently have been proposed as means to infer netw...
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Camshaft is the key component of automobile engine valve timing mechanism, whose machining precision will affect overall performance of automobile engine. This paper presents a kind of camshaft journals multi-paramete...
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A novel class of periodically changing features hidden in radar pulse sequence environment,named G features,is *** fractal theory and Hilbert-Huang transform,the features are extracted using changing characteristics o...
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A novel class of periodically changing features hidden in radar pulse sequence environment,named G features,is *** fractal theory and Hilbert-Huang transform,the features are extracted using changing characteristics of pulse parameters in radar emitter *** features can be applied in modern complex electronic warfare environment to address the issue of signal sorting when radar emitter pulse signal parameters severely or even completely *** results show that the proposed feature class and feature extraction method can discriminate periodically changing pulse sequence signal sorting features from radar pulse signal flow with complex variant features,therefore provide a new methodology for signal sorting.
Considering from test time, test power and access, this article adopts new method that LFSR reseeding based on syncopation of some test patterns. In a test set, some patterns have a lot of confirmed bits and are hardl...
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ISBN:
(纸本)9787121113154
Considering from test time, test power and access, this article adopts new method that LFSR reseeding based on syncopation of some test patterns. In a test set, some patterns have a lot of confirmed bits and are hardly encoded by LFSR. They are syncopated and substituted by generating patterns. This method can reduce the number of seeds and improve the utilization of seed so that achieve the purpose of test data compression. Using in the benchmark circuits, experimental results show that it can better improve the compression rate and reduce the cost of test.
The structure and working principle of Phase-Inversion Symmetric - Spread Spectrum communication (PIS-SSC) system were described. Two kinds of implementations of Phase-Inversion Symmetric decoding part in the system w...
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The principle of Phase-Inversion Symmetric method (PISM) in time-domain based on noise correlation is presented, and its anti-narrowband noise interference ability is analyzed. the simulation models of PISM in time-do...
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We present a simple method to synthesize Pb（OH）2 nanorods by solution-phase reaction. Rod-like lead hydroxide precipitates are obtained by mixing lead nitrate with a concentration of about 0.01 M and potassium hydro...
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We present a simple method to synthesize Pb（OH）2 nanorods by solution-phase reaction. Rod-like lead hydroxide precipitates are obtained by mixing lead nitrate with a concentration of about 0.01 M and potassium hydroxide with concentration of about O.03 M in an aqueous solution. Sodium chloride as an additive is premixed with the lead nitrate aqueous solution. The presence of chloride ions in the precursor solution results in the rod-like morphology of lead hydroxide precipitates. The growth mechanism of the lead hydroxide nanorods is discussed.
In this paper, a new parameterized construction method for biorthogonal wavelet is presented. In particular, the attribution of biorthogonal wavelet such as supported interval and symmetry and vanishing moments can be...
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