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2015 Vol. 37, No. 4
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2015, 37(4): 763-769.
doi: 10.11999/JEIT140875
Abstract:
Nowadays the deterministic construction of sensing matrices is a hot topic in compressed sensing. Two classes of deterministic sensing matrices based on the Berlekamp-Justesen (B-J) codes are proposed. Firstly, a class of sparse sensing matrices with...
Nowadays the deterministic construction of sensing matrices is a hot topic in compressed sensing. Two classes of deterministic sensing matrices based on the Berlekamp-Justesen (B-J) codes are proposed. Firstly, a class of sparse sensing matrices with...
2015, 37(4): 770-776.
doi: 10.11999/JEIT140949
Abstract:
Image restoration is a long-standing and challenging inverse issue. In order to recover an image from its blurry version blindly, a multi-regularization hybrid constraints method is proposed. First, the large scale edges are extracted from the image ...
Image restoration is a long-standing and challenging inverse issue. In order to recover an image from its blurry version blindly, a multi-regularization hybrid constraints method is proposed. First, the large scale edges are extracted from the image ...
2015, 37(4): 777-783.
doi: 10.11999/JEIT140739
Abstract:
In neighbor embedding based face hallucination, the training and reconstruction processes are performed in the feature space, thus the feature selection is important. In addition, there is no constraint specified for the signs of the weights generate...
In neighbor embedding based face hallucination, the training and reconstruction processes are performed in the feature space, thus the feature selection is important. In addition, there is no constraint specified for the signs of the weights generate...
2015, 37(4): 784-790.
doi: 10.11999/JEIT141282
Abstract:
Extracting an effective visual feature to uncover semantic information is an important work for designing a robust automatic image annotation system. Since different kinds of heterogeneous features (such as color, texture and shape) show different in...
Extracting an effective visual feature to uncover semantic information is an important work for designing a robust automatic image annotation system. Since different kinds of heterogeneous features (such as color, texture and shape) show different in...
2015, 37(4): 791-797.
doi: 10.11999/JEIT140743
Abstract:
Considering the ambiguity problem in the traditional feature coding model, a feature context-aware semantic enhanced linear coding method is proposed. At first, the context information is represented by the concurrence matrix learnt from local area o...
Considering the ambiguity problem in the traditional feature coding model, a feature context-aware semantic enhanced linear coding method is proposed. At first, the context information is represented by the concurrence matrix learnt from local area o...
2015, 37(4): 798-803.
doi: 10.11999/JEIT140560
Abstract:
To pursue accurate source location and velocity, this paper proposes a method based on the Regularization theory to solve the source localization problem utilizing Time-Difference-Of-Arrival (TDOA) and Frequency-Difference-Of-Arrival (FDOA). The prop...
To pursue accurate source location and velocity, this paper proposes a method based on the Regularization theory to solve the source localization problem utilizing Time-Difference-Of-Arrival (TDOA) and Frequency-Difference-Of-Arrival (FDOA). The prop...
2015, 37(4): 804-810.
doi: 10.11999/JEIT140511
Abstract:
Due to the huge computation for eigenvalue decomposition based signal synthesis method, an efficient multi-component signals reconstruction algorithm is presented in this paper. Firstly, by analyzing the inverse transformation for Wigner-Ville distri...
Due to the huge computation for eigenvalue decomposition based signal synthesis method, an efficient multi-component signals reconstruction algorithm is presented in this paper. Firstly, by analyzing the inverse transformation for Wigner-Ville distri...
2015, 37(4): 811-816.
doi: 10.11999/JEIT141034
Abstract:
Subspace based Direction-Of-Arrival (DOA) estimators require usually the number of sources to be known in advance. If the number of sources is incorrectly estimated, the performance of those methods is able to deteriorate significantly. This paper pr...
Subspace based Direction-Of-Arrival (DOA) estimators require usually the number of sources to be known in advance. If the number of sources is incorrectly estimated, the performance of those methods is able to deteriorate significantly. This paper pr...
2015, 37(4): 817-823.
doi: 10.11999/JEIT140937
Abstract:
Based on the multi-task Bayes Compressive Sensing (BCS), a Direction-Of-Arrival (DOA) estimation strategy using Laplace prior is proposed. The DOA estimation is formulated as the reconstruction of sparse signal constrained by the Laplace prior throug...
Based on the multi-task Bayes Compressive Sensing (BCS), a Direction-Of-Arrival (DOA) estimation strategy using Laplace prior is proposed. The DOA estimation is formulated as the reconstruction of sparse signal constrained by the Laplace prior throug...
2015, 37(4): 824-829.
doi: 10.11999/JEIT140903
Abstract:
In order to recognize automatically the compression and ventilation waveforms of the TransThoracic Impedance (TTI) signal, and obtain the important parameters, for evaluating the CardioPulmonary Resuscitation (CPR) quality, this paper proposes an aut...
In order to recognize automatically the compression and ventilation waveforms of the TransThoracic Impedance (TTI) signal, and obtain the important parameters, for evaluating the CardioPulmonary Resuscitation (CPR) quality, this paper proposes an aut...
2015, 37(4): 830-835.
doi: 10.11999/JEIT140893
Abstract:
Effective rejection of the time-varying clutter originating from slowly moving vessels and surrounding tissues is very important for depicting hemodynamics in ultrasound color Doppler imaging. In this paper, a new adaptive clutter rejection method ba...
Effective rejection of the time-varying clutter originating from slowly moving vessels and surrounding tissues is very important for depicting hemodynamics in ultrasound color Doppler imaging. In this paper, a new adaptive clutter rejection method ba...
2015, 37(4): 836-840.
doi: 10.11999/JEIT140908
Abstract:
Differential Frequency Hopping (DFH) signal can be used in the High Frequency (HF) and underwater acoustic communications because it has good resistance to multipath fading and jamming, at the same time with a high-speed data transmission capacity. H...
Differential Frequency Hopping (DFH) signal can be used in the High Frequency (HF) and underwater acoustic communications because it has good resistance to multipath fading and jamming, at the same time with a high-speed data transmission capacity. H...
RF Stealth Design Method for Hopping Cycle and Hopping Interval Based on Conditional Maximum Entropy
2015, 37(4): 841-847.
doi: 10.11999/JEIT140892
Abstract:
In order to increase the interception performance of frequency hopping systems, an optimal algorithm for hopping cycle and hopping interval, which is based on the conditional maximum entropy is proposed. The prior data of frequency hopping systems ar...
In order to increase the interception performance of frequency hopping systems, an optimal algorithm for hopping cycle and hopping interval, which is based on the conditional maximum entropy is proposed. The prior data of frequency hopping systems ar...
2015, 37(4): 848-854.
doi: 10.11999/JEIT140817
Abstract:
Massive MIMO technique can effectively increase system capacity in the fifth Generation (5G) cellular network, where Base Station (BS) is equipped with a very large number of antennas. Considering the impact of channel estimation error on performance...
Massive MIMO technique can effectively increase system capacity in the fifth Generation (5G) cellular network, where Base Station (BS) is equipped with a very large number of antennas. Considering the impact of channel estimation error on performance...
2015, 37(4): 855-862.
doi: 10.11999/JEIT140661
Abstract:
The Access Point (AP) in Wireless Local Area Network (WLAN) can be localized. In this paper, an AP Localization algorithm based on the Probability Density (PDAPL) is proposed. First, the region is portioned into several cells. Then, the probability o...
The Access Point (AP) in Wireless Local Area Network (WLAN) can be localized. In this paper, an AP Localization algorithm based on the Probability Density (PDAPL) is proposed. First, the region is portioned into several cells. Then, the probability o...
2015, 37(4): 863-867.
doi: 10.11999/JEIT140644
Abstract:
In modern wireless communication systems, multiple-antenna-transmitting in association with Orthogonal Space-Time Block Code (OSTBC) is a key technology to improve communication rate, reliability, and decoding complexity. In this paper, a modulation ...
In modern wireless communication systems, multiple-antenna-transmitting in association with Orthogonal Space-Time Block Code (OSTBC) is a key technology to improve communication rate, reliability, and decoding complexity. In this paper, a modulation ...
2015, 37(4): 868-873.
doi: 10.11999/JEIT140959
Abstract:
In order to enhance the spectrum utilization, this paper uses the nonlinear dynamics theory for modeling and prediction of spectrum state duration. Firstly, the real spectrum state duration is investigated. Then, this study uses the directional deriv...
In order to enhance the spectrum utilization, this paper uses the nonlinear dynamics theory for modeling and prediction of spectrum state duration. Firstly, the real spectrum state duration is investigated. Then, this study uses the directional deriv...
2015, 37(4): 874-880.
doi: 10.11999/JEIT140845
Abstract:
A prediction Vertical HandOff (M-VHO) algorithm is proposed by using a Markov process in vehicle heterogeneous network, to improve handoff performance when network status dynamic transformation after the handoff decision. It takes into account influe...
A prediction Vertical HandOff (M-VHO) algorithm is proposed by using a Markov process in vehicle heterogeneous network, to improve handoff performance when network status dynamic transformation after the handoff decision. It takes into account influe...
2015, 37(4): 881-886.
doi: 10.11999/JEIT140831
Abstract:
The current signature-based Grbner basis algorithms are mostly in Buchberger style and the researches related to matrix style often aim to analyze the complexity of algorithms. From a practical aspect, this paper provides a concrete Gao-Volny-Wang (G...
The current signature-based Grbner basis algorithms are mostly in Buchberger style and the researches related to matrix style often aim to analyze the complexity of algorithms. From a practical aspect, this paper provides a concrete Gao-Volny-Wang (G...
2015, 37(4): 887-893.
doi: 10.11999/JEIT140820
Abstract:
A novel mechanism combining Counting Bloom Filter (CBF) and Timeout Bloom Filter (TBF) is proposed, aiming at identifying IP long flow precisely. By adjusting the timeout dynamically and deleting end flows timely, the mechanism can solve the space co...
A novel mechanism combining Counting Bloom Filter (CBF) and Timeout Bloom Filter (TBF) is proposed, aiming at identifying IP long flow precisely. By adjusting the timeout dynamically and deleting end flows timely, the mechanism can solve the space co...
2015, 37(4): 894-899.
doi: 10.11999/JEIT140786
Abstract:
Bayesian network is an important theoretical tool in the artificial algorithm field, and learning structure from data is considered as NP-hard. In this article, a hybrid learning method is proposed by starting from analysis of information provided by...
Bayesian network is an important theoretical tool in the artificial algorithm field, and learning structure from data is considered as NP-hard. In this article, a hybrid learning method is proposed by starting from analysis of information provided by...
2015, 37(4): 900-906.
doi: 10.11999/JEIT140740
Abstract:
Satellite navigation systems is susceptible to jamming, Space-Time Adaptive Processing (STAP) technique has obvious advantage in the anti-jamming of navigation receiver, i.e. system Degree Of Freedom (DOF) visibly increasing, but traditional STAP wou...
Satellite navigation systems is susceptible to jamming, Space-Time Adaptive Processing (STAP) technique has obvious advantage in the anti-jamming of navigation receiver, i.e. system Degree Of Freedom (DOF) visibly increasing, but traditional STAP wou...
2015, 37(4): 907-912.
doi: 10.11999/JEIT140878
Abstract:
For the frequency estimation problem of narrow-band multi-component signal, a frequency estimation algorithm based on the sparse decomposition is proposed, which simultaneously estimates the frequency of multiple narrow-band signal. Firstly, the pre-...
For the frequency estimation problem of narrow-band multi-component signal, a frequency estimation algorithm based on the sparse decomposition is proposed, which simultaneously estimates the frequency of multiple narrow-band signal. Firstly, the pre-...
2015, 37(4): 913-918.
doi: 10.11999/JEIT140769
Abstract:
Jammer motion brings trouble to the dual-channel cancellation, but the good result is restricted to a limited range. The rotation motion of a jammer is periodic, the effect of rotating jammer on InSAR dual-channel cancellation is studied in this pape...
Jammer motion brings trouble to the dual-channel cancellation, but the good result is restricted to a limited range. The rotation motion of a jammer is periodic, the effect of rotating jammer on InSAR dual-channel cancellation is studied in this pape...
2015, 37(4): 919-925.
doi: 10.11999/JEIT140710
Abstract:
Nowadays 3-D reconstruction for natural scene is an important aspect of the Earth observation with SAR Tomography (TomoSAR). The general method for pattern sidelobe suppression, during the tomographic processing, is usually implemented with the weigh...
Nowadays 3-D reconstruction for natural scene is an important aspect of the Earth observation with SAR Tomography (TomoSAR). The general method for pattern sidelobe suppression, during the tomographic processing, is usually implemented with the weigh...
2015, 37(4): 926-932.
doi: 10.11999/JEIT140589
Abstract:
Based on the target large angle domain High Resolution Range Profile (HRRP) information of the ship formation obtained by the terminal guidance radar during its search phase, this study establishes an ergodic Spatial Hidden Markov Model (SHMM) which ...
Based on the target large angle domain High Resolution Range Profile (HRRP) information of the ship formation obtained by the terminal guidance radar during its search phase, this study establishes an ergodic Spatial Hidden Markov Model (SHMM) which ...
2015, 37(4): 933-938.
doi: 10.11999/JEIT140826
Abstract:
A novel algorithm for estimation of Direction Of Departure (DOD), Direction Of Arrival (DOA), and Doppler frequency based on bistatic MIMO radar with Co-Prime Array (CPA) is presented. The transmit and receive arrays are both composed of a pair of sp...
A novel algorithm for estimation of Direction Of Departure (DOD), Direction Of Arrival (DOA), and Doppler frequency based on bistatic MIMO radar with Co-Prime Array (CPA) is presented. The transmit and receive arrays are both composed of a pair of sp...
2015, 37(4): 939-945.
doi: 10.11999/JEIT140685
Abstract:
When applying to a high-precision and wide-beam airborne SAR, the frequency domain imaging algorithms are incapable of accurate Motion Compensation (MoCo), while the precise time domain approaches have the drawback of heavy computation burden. A nove...
When applying to a high-precision and wide-beam airborne SAR, the frequency domain imaging algorithms are incapable of accurate Motion Compensation (MoCo), while the precise time domain approaches have the drawback of heavy computation burden. A nove...
2015, 37(4): 946-952.
doi: 10.11999/JEIT140717
Abstract:
Take the advantage of all-directional observation of circular SAR, an approach of the outlines extraction of building footprints from the circular SAR data is presented, while the approach can also be used for estimating the ground altitude around th...
Take the advantage of all-directional observation of circular SAR, an approach of the outlines extraction of building footprints from the circular SAR data is presented, while the approach can also be used for estimating the ground altitude around th...
2015, 37(4): 953-960.
doi: 10.11999/JEIT140618
Abstract:
The missile-borne Synthetic Aperture Radar (SAR) usually adopts the highly squint mode and subaperture to satisfy maneuvering and the real-time processing, but the signal of highly squint SAR is coupled greatly between the azimuth and range. This iss...
The missile-borne Synthetic Aperture Radar (SAR) usually adopts the highly squint mode and subaperture to satisfy maneuvering and the real-time processing, but the signal of highly squint SAR is coupled greatly between the azimuth and range. This iss...
2015, 37(4): 961-968.
doi: 10.11999/JEIT140814
Abstract:
When radar transmits the narrowband signal to the cone-shaped target, the modulation induced by precession causes the periodic change of scattering centers Instantaneous Frequency (IF) contained in echo, which can reflect the targets geometry and str...
When radar transmits the narrowband signal to the cone-shaped target, the modulation induced by precession causes the periodic change of scattering centers Instantaneous Frequency (IF) contained in echo, which can reflect the targets geometry and str...
2015, 37(4): 969-974.
doi: 10.11999/JEIT140675
Abstract:
On the basis of the MultiChannel Autofocus (MCA) algorithm and the Fourier-domain MultiChannel Autofocus (FMCA) algorithm, an autofocus algorithm for airborne SAR based on Doppler-domain multichannel is proposed. The proposed autofocus algorithm is a...
On the basis of the MultiChannel Autofocus (MCA) algorithm and the Fourier-domain MultiChannel Autofocus (FMCA) algorithm, an autofocus algorithm for airborne SAR based on Doppler-domain multichannel is proposed. The proposed autofocus algorithm is a...
2015, 37(4): 975-981.
doi: 10.11999/JEIT140720
Abstract:
This paper presents a method of adaptive operating frequency selection for sky-wave Over-The-Horizon Radar (OTHR) with 2-D array by predicting Signal-to-Noise Ratio (SNR) of paths to the area of interest. With the elevation resolution of 2-D array, t...
This paper presents a method of adaptive operating frequency selection for sky-wave Over-The-Horizon Radar (OTHR) with 2-D array by predicting Signal-to-Noise Ratio (SNR) of paths to the area of interest. With the elevation resolution of 2-D array, t...
2015, 37(4): 982-988.
doi: 10.11999/JEIT140730
Abstract:
To improve the detection performance of marine radar, the application of multifractional Brownian motion to modeling the radar sea clutter in the scanning mode is studied. It is verified that real sea clutter data submit to a non-Gaussian distributio...
To improve the detection performance of marine radar, the application of multifractional Brownian motion to modeling the radar sea clutter in the scanning mode is studied. It is verified that real sea clutter data submit to a non-Gaussian distributio...
2015, 37(4): 989-994.
doi: 10.11999/JEIT140856
Abstract:
Considering the problem that Pulse Doppler (PD) radar is not able to track target precisely in the presence of velocity gate pull-off/in jamming and clutter environment, an algorithm for target tracking is proposed which is based on the Double Models...
Considering the problem that Pulse Doppler (PD) radar is not able to track target precisely in the presence of velocity gate pull-off/in jamming and clutter environment, an algorithm for target tracking is proposed which is based on the Double Models...
2015, 37(4): 995-1001.
doi: 10.11999/JEIT140600
Abstract:
In order to extract effectively the discriminant characteristics of hyperspectral remote sensing image data, this paper presents a Semi-Supervised Laplace Discriminant Embedding (SSLDE) algorithm based on the discriminant information of labeled sampl...
In order to extract effectively the discriminant characteristics of hyperspectral remote sensing image data, this paper presents a Semi-Supervised Laplace Discriminant Embedding (SSLDE) algorithm based on the discriminant information of labeled sampl...
2015, 37(4): 1002-1007.
doi: 10.11999/JEIT140807
Abstract:
The near-field scattering characteristics of dielectric targets are studied in the terahertz band based on the generalized Kirchhoff impedance boundary conditions and the physical optics method. The formula of the near field scattering for dielectric...
The near-field scattering characteristics of dielectric targets are studied in the terahertz band based on the generalized Kirchhoff impedance boundary conditions and the physical optics method. The formula of the near field scattering for dielectric...
2015, 37(4): 1008-1012.
doi: 10.11999/JEIT140816
Abstract:
An ultra-wideband fractal antenna is proposed, which has an isosceles trapezoid ground-plane. Increasing fractal iterations and optimizing ground-plane shape can achieve a better impedance matching so as to realize Ultra-WideBand (UWB) antenna perfor...
An ultra-wideband fractal antenna is proposed, which has an isosceles trapezoid ground-plane. Increasing fractal iterations and optimizing ground-plane shape can achieve a better impedance matching so as to realize Ultra-WideBand (UWB) antenna perfor...
An Empirical Model for Wind Speed Inversion Directly from High Frequency Surface Wave Radar Sea Echo
2015, 37(4): 1013-1016.
doi: 10.11999/JEIT140850
Abstract:
The information of the significant wave height is needed in the wind speed inversion from the sea echo of High Frequency Surface Wave Radar (HFSWR) by using the empirical model of wind waves. Therefore, the accuracy of the significant wave height has...
The information of the significant wave height is needed in the wind speed inversion from the sea echo of High Frequency Surface Wave Radar (HFSWR) by using the empirical model of wind waves. Therefore, the accuracy of the significant wave height has...
