35 Result(s)
within
Engineering
Signal, Image and Speech Processing
**g-** Ge
Article
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Article
Open AccessComprehensive analysis of aero-engine vibration signals based on wavelet transform method
A single type of signal processing means that it is difficult to analyze vibration signals comprehensively and effectively. By comprehensively using wavelet analysis techniques, a comprehensive and in-depth st...
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Open AccessFrequency estimation for underwater CW pulse by interpolation on fractional Fourier coefficients based on amplitude ratio method
Fast and accurate estimation of sinusoidal signals plays an important role in many fields like communications, radar, sonar, etc. In underwater signal processing applications, sinusoidal signals usually take t...
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Open AccessAn MMSE graph spectral magnitude estimator for speech signals residing on an undirected multiple graph
The paper uses the K-graphs learning method to construct weighted, connected, undirected multiple graphs, aiming to reveal intrinsic relationships of speech samples in the inter-frame and intra-frame. To benefit ...
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Open AccessSecure spatial modulation based on two-dimensional generalized weighted fractional Fourier transform encryption
In this paper, a two-dimensional generalized weighted fractional Fourier transform (2DGWFRFT) and constellation scrambling (CS)-based secure spatial modulation (SM) scheme, called 2DGWFRFT-CS-SM, is proposed t...
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Open AccessPoint matching based on affine invariant centroid trees
Object detection can be formulated as a point matching problem when objects are modeled by point sets. Moments, which have been widely used for point matching, are limited to affine transformations as their su...
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Open AccessA signal enhancement method based on the reverberation statistical information
This paper proposes a reverberation suppression algorithm utilizing fractional lower-order moments based on statistical properties. As fractional lower-order moments can only be applied on symmetric α-stable r...
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Open AccessTheoretical formulation/development of signal sampling with an equal arc length using the frame theorem
Nonuniform sampling with equal arc length intervals can be found in shape measurements with contact sensor arrays. In this study, the conditions of nonuniform spatial sampling with an equal arc length interval...
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Open AccessThe deception effect of FDA counteracting amplitude-comparison monopulse reconnaissance
Conventional phased array radar can direct the high-gain beam, resulting in high visibility under the reconnaissance system and even direct exposure to the enemy. As an amplitude-based direction-finding system...
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Open AccessA robust power allocation strategy based on benefit–cost ratio for multiple target guidance in the C-MIMO radar system under blanket jamming
How to utilize the limited power budget to accurately track more targets plays a critical role for the radar system in air defense applications, especially in the weapon guidance application. In this paper, we...
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Open AccessEnergy-aware task offloading with deadline constraint in mobile edge computing
With the development of the wireless network, increasing mobile applications are emerging and receiving great popularity. These applications cover a wide area, such as traffic monitoring, smart homes, real-tim...
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Open AccessSeamless clustering multi-hop routing protocol based on improved artificial bee colony algorithm
An important issue in the mobile sink wireless sensor networks (MSWSNs) is sensor energy optimization. In order to alleviate the problem of unbalanced network load and high energy consumption in MSWSNs, we pro...
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Open AccessPrecise time and frequency transfer combined BeiDou’s RDSS and RNSS signals
Unlike other satellite navigation systems such as GPS (Global Positioning System), the BeiDou satellite navigation system broadcasts RDSS (Radio Determination Satellite Service) and RNSS (Radio Navigation Sate...
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Open AccessStudy on communication channel estimation by improved SOMP based on distributed compressed sensing
Wireless communication channel usually show the feature of time-varying; however, the time-varying channel has the characteristic that the channel structure within the adjacent time slots having serious time c...
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Open AccessBehavior Reconstruction Models for Large-scale Network Service Systems
In large-scale network service systems, the phenomenon of instantaneous gathering of a large number of users can cause system abnormality, whenever the load imposed by the user behaviors does not match the sys...
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Open AccessA de-noising method based on L0 gradient minimization and guided filter for ancient Chinese calligraphy works on steles
A clear stele image of ancient Chinese calligraphy pieces is very useful for studying ancient Chinese calligraphy. However, due to hundreds of or even thousands of years of natural or artificial damage on stel...
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Article
Correction to: The Probabilistic Model and Forecasting of Power Load Based on Variational Bayesian Expectation Maximization and Relevance Vector Machine
There was a spelling error in the first author’s name in the original publication.
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Article
Open AccessResearch on fine boring simulation based on squeezed liquid film damper
The liquid film dam** is one of the main technology for the aerospace, navigation, and machine tool. However, the research on the fine boring is very limited. The paper set up the fine boring squeezed liquid...
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Open AccessHybrid energy-efficient APTEEN protocol based on ant colony algorithm in wireless sensor network
Due to the limited energy of the sensor nodes, the unreasonable clustering routing algorithm will cause node premature death and low utilization of energy efficiency in wireless sensor network (WSN). In Adapti...
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Open AccessOptimization on TEEN routing protocol in cognitive wireless sensor network
In order to improve the energy efficiency of cognitive wireless sensor network, this paper introduces threshold-sensitive energy efficient sensor network (TEEN) routing protocol into cognitive wireless sensor ...
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Open AccessTransmission completion time minimization in digital network coding assisted two-way relay OFDM networks
This paper investigates the two-way relay transmission over orthogonal frequency division multiplexing (OFDM) channels using digital network coding. For a given amount of data to be transmitted, we formulate a...
