Articles

One-bit compressive sampling via ℓ ₀ minimization

The problem of 1-bit compressive sampling is addressed in this paper. We introduce an optimization model for reconstruction of sparse signals from 1-bit measurements. The model targets a solution that has the ...

Authors: Lixin Shen and Bruce W. Suter

An image auto-focusing algorithm for industrial image measurement

Auto-focusing task, which automatically obtains the best image focus, plays an important role to improve the image definition for the industrial image measurement application. Image-based auto-focusing is one ...

Authors: Shuxin Liu, Manhua Liu and Zhongyuan Yang

A generalized gamma correction algorithm based on the SLIP model

Traditional contrast enhancement techniques were developed to enhance the dynamic range of images with narrow histograms. However, it is not unusual that an image with a broad histogram still suffers from low ...

Authors: Guang Deng

Robust feature representation for classification of bird song syllables

A novel feature set for low-dimensional signal representation, designed for classification or clustering of non-stationary signals with complex variation in time and frequency, is presented. The feature repres...

Authors: Maria Sandsten, Mareile Große Ruse and Martin Jönsson

A survey of machine learning for big data processing

There is no doubt that big data are now rapidly expanding in all science and engineering domains. While the potential of these massive data is undoubtedly significant, fully making sense of them requires new w...

Authors: Junfei Qiu, Qihui Wu, Guoru Ding, Yuhua Xu and Shuo Feng

Singular spectrum-based matrix completion for time series recovery and prediction

Big data, characterized by huge volumes of continuously varying streams of information, present formidable challenges in terms of acquisition, processing, and transmission, especially when one considers novel ...

Authors: Grigorios Tsagkatakis, Baltasar Beferull-Lozano and Panagiotis Tsakalides

Adaptive tracking of people and vehicles using mobile platforms

Tracking algorithms have important applications in detection of humans and vehicles for border security and other areas. For large-scale deployment of such algorithms, it is critical to provide methods for the...

Authors: Haifa Ben Salem, Thyagaraju Damarla, Kishan Sudusinghe, Walter Stechele and Shuvra S. Bhattacharyya

A limited feedback scheme for massive MIMO systems based on principal component analysis

Massive multiple-input multiple-output (MIMO) is becoming a key technology for future 5G cellular networks. Channel feedback for massive MIMO is challenging due to the substantially increased dimension of the ...

Authors: Tiankui Zhang, Anmeng Ge, Norman C. Beaulieu, Zhirui Hu and Jonathan Loo

Advances in adaptive filtering theory and applications to acoustic and speech signal processing

Authors: Markus Rupp, Walter Kellermann, Abdelhak Zoubir and Gerhard Schmidt

A novel distributed fusion algorithm for multi-sensor nonlinear tracking

The covariance intersection (CI), especially with feedback structure, can be easily combined with nonlinear filters to solve the distributed fusion problem of multi-sensor nonlinear tracking. However, this pap...

Authors: Jingxian Liu, Zulin Wang and Mai Xu

Adaptive parameter particle CBMeMBer tracker for multiple maneuvering target tracking

Cardinality-balanced multi-target multi-Bernoulli (CBMeMBer) filter has been demonstrated as a promising algorithm for multi-target tracking, and the multi-model (MM) method has been incorporated into the CBMe...

Authors: Jinlong Yang, Le Yang, Zhiyong Xiao and Jianjun Liu

Robust detection in ultra-wideband impulse radar using DPSS-MMSE estimator

In this paper, it has been shown that non-stationary received signals at ultra-wideband impulse radars can be addressed by Fourier series model with time-varying coefficients. Next, simply by computing statist...

Authors: S. M. Ali Tayaranian Hosseini, Hamidreza Amindavar and James A. Ritcey

A robust generalized sidelobe canceller via steering vector estimation

In the presence of the direction of arrival (DOA) mismatch, the performance of generalized sidelobe canceller (GSC) may suffer severe degradation due to the gain loss of the desired signal in the main array an...

Authors: Xu Wang, Julan Xie, Zishu He and Huiyong Li

Color interpolation algorithm for an RWB color filter array including double-exposed white channel

In this paper, we propose a color interpolation algorithm for a red-white-blue (RWB) color filter array (CFA) that uses a double exposed white channel instead of a single exposed green (G) channel. The double-...

Authors: Ki Sun Song, Chul Hee Park, Jonghyun Kim and Moon Gi Kang

An incremental learning algorithm for the hybrid RBF-BP network classifier

This paper presents an incremental learning algorithm for the hybrid RBF-BP (ILRBF-BP) network classifier. A potential function is introduced to the training sample space in space mapping stage, and an increme...

Authors: Hui Wen, Weixin Xie, Jihong Pei and Lixin Guan

Efficiently sphere-decodable physical layer transmission schemes for wireless storage networks

Three transmission schemes over a new type of multiple-access channel (MAC) model with inter-source communication links are proposed and investigated in this paper. This new channel model is well motivated by,...

Authors: Hsiao-feng (Francis) Lu, Amaro Barreal, David Karpuk and Camilla Hollanti

A phase trajectories optimization method for CPM signal based on Pan-function model

The continuous phase modulation (CPM) signal has the characteristics of continuous phase, excellent spectral properties, less out-band radiation, and constant envelope. Thus, CPM technology is widely used in c...

Authors: Wei Xue, Wenjing Shang, Sergey B. Makarov and Yidong Xu

Quantization in zero leakage helper data schemes

A helper data scheme (HDS) is a cryptographic primitive that extracts a high-entropy noise-free string from noisy data. Helper data schemes are used for preserving privacy in biometric databases and for physic...

Authors: Joep de Groot, Boris Škorić, Niels de Vreede and Jean-Paul Linnartz

Exploiting sensor mobility and covariance sparsity for distributed tracking of multiple sparse targets

The problem of distributed tracking of multiple targets is tackled by exploiting sensor mobility and the presence of sparsity in the sensor data covariance matrix. Sparse matrix decomposition relying on norm-o...

Authors: Guohua Ren, Vasileios Maroulas and Ioannis D. Schizas

Advanced flooding-based routing protocols for underwater sensor networks

Flooding-based protocols are a reliable solution to deliver packets in underwater sensor networks. However, these protocols potentially involve all the nodes in the forwarding process. Thus, the performance an...

Authors: Elvin Isufi, Henry Dol and Geert Leus

Distributed piecewise filtering design for large-scale networked nonlinear systems

This paper investigates the problem of distributed piecewise filtering for discrete-time large-scale nonlinear systems. The considered large-scale system is composed of a numb...

Authors: Zhenhua Shao and Tianxiang Chen

Multi-camera object tracking using surprisal observations in visual sensor networks

In this work, we propose a multi-camera object tracking method with surprisal observations based on the cubature information filter in visual sensor networks. In multi-camera object tracking approaches, multip...

Authors: Venkata Pathuri Bhuvana, Melanie Schranz, Carlo S. Regazzoni, Bernhard Rinner, Andrea M. Tonello and Mario Huemer

Motion detection using binocular image flow in dynamic scenes

Motion detection is a hard task for intelligent vehicles since target motion is mixed with ego-motion caused by moving cameras. This paper proposes a stereo-motion fusion method for detection of moving objects...

Authors: Qi Min and Yingping Huang

Online rate adjustment for adaptive random access compressed sensing of time-varying fields

We develop an adaptive sensing framework for tracking time-varying fields using a wireless sensor network. The sensing rate is iteratively adjusted in an online fashion using a scheme that relies on an integra...

Authors: Naveen Kumar, Fatemeh Fazel, Milica Stojanovic and Shrikanth S. Naryanan

Partial interference cancellation with maximum likelihood sequence detection in FBMC spatial multiplexing system

Intrinsic interference in filter bank multicarrier (FBMC) modulation prevents the maximum likelihood (ML) detection in spatial multiplexing (SM) system. This intrinsic interference is caused by the transmultip...

Authors: Rostom Zakaria and Didier Le Ruyet

Performance of regression-based precoding for multi-user massive MIMO-OFDM systems

We study the performance of a single-cell massive multiple-input multiple-output orthogonal frequency-division multiplexing (MIMO-OFDM) system that uses linear precoding to serve multiple users on the same tim...

Authors: Ali Yazdan Panah, Karthik Yogeeswaran and Yael Maguire

Feature extraction of SAR scattering centers using M-RANSAC and STFRFT-based algorithm

This paper introduces a modified random sample consensus (M-RANSAC) and short-time fractional Fourier transform (STFRFT)-based algorithm for feature extraction of synthetic aperture radar (SAR) scattering cent...

Authors: Hui Sheng, Yesheng Gao, Bingqi Zhu, Kaizhi Wang and Xingzhao Liu

Multiple descriptions for packetized predictive control

In this paper, we propose to use multiple descriptions (MDs) to achieve a high degree of robustness towards random packet delays and erasures in networked control systems. In particular, we consider the scenar...

Authors: Jan Østergaard and Daniel Quevedo

Robust adaptive algorithm for active control of impulsive noise

Active noise control (ANC) systems employing adaptive filters suffer from stability issues in the presence of impulsive noise. To overcome this limitation, new methods must be investigated. In this paper, we p...

Authors: Alina Mirza, Ayesha Zeb and Shahzad Amin Sheikh

Multiple access interference in MIMO-CDMA systems under Rayleigh fading: statistical characterization and applications

A major limiting factor in the performance of multiple-input-multiple-output (MIMO) code division multiple access (CDMA) systems is multiple access interference (MAI) which can reduce the system’s capacity and...

Authors: Khalid Mahmood, Syed Muhammad Asad, Muhammad Moinuddin, Azzedine Zerguine and Lahouari Cheded

Interval type 2 fuzzy localization for wireless sensor networks

Indoor localization in wireless sensor networks (WSN) is a challenging process. This paper proposes a new approach to solve the localization problematic. A fuzzy linguistic localization scheme is proposed. Bas...

Authors: Noura Baccar and Ridha Bouallegue

Conjugate root offset-QAM for orthogonal multicarrier transmission

Current implementations of orthogonal frequency-division multiplexing (OFDM)/offset quadrature amplitude modulation (OQAM) are restricted to band-limited symmetric filters. To circumvent this, non-symmetric co...

Authors: Maximilian Matthé and Gerhard Fettweis

CFO mitigation for uplink SFBC SC-FDMA

To mitigate inter-carrier interference due to large carrier frequency offset (CFO) in an uplink single-carrier frequency division multiple access (SC-FDMA) system, a three-tap adaptive frequency-domain decisio...

Authors: Naveed Iqbal and Azzedine Zerguine

Filtered-X Least Mean Fourth (FXLMF) and Leaky FXLMF adaptive algorithms

Adaptive filtering algorithms promise an improvement of the active noise control (ANC) problem encountered in many scenarios. Just to name a few, the Filtered-X Least Mean Square (FXLMS) algorithm, the Leaky F...

Authors: Ali M. Al Omour, Abdelmalek Zidouri, Naveed Iqbal and Azzedine Zerguine

Instruction scheduling heuristic for an efficient FFT in VLIW processors with balanced resource usage

The fast Fourier transform (FFT) is perhaps today’s most ubiquitous algorithm used with digital data; hence, it is still being studied extensively. Besides the benefit of reducing the arithmetic count in the F...

Authors: Mounir Bahtat, Said Belkouch, Philippe Elleaume and Philippe Le Gall

Robust adaptive filtering using recursive weighted least squares with combined scale and variable forgetting factors

In this paper, a new adaptive robustified filter algorithm of recursive weighted least squares with combined scale and variable forgetting factors for time-varying parameters estimation in non-stationary and i...

Authors: Branko Kovačević, Zoran Banjac and Ivana Kostić Kovačević

Signal processing techniques for seat belt microphone arrays

Microphones integrated on a seat belt are an interesting alternative to conventional sensor positions used for hands-free telephony or speech dialog systems in automobile environments. In the setup presented i...

Authors: Vasudev Kandade Rajan, Mohamed Krini, Klaus Rodemer and Gerhard Schmidt

Robust and adaptive diffusion-based classification in distributed networks

Distributed adaptive signal processing and communication networking are rapidly advancing research areas which enable new and powerful signal processing tasks, e.g., distributed speech enhancement in adverse e...

Authors: Patricia Binder, Michael Muma and Abdelhak M. Zoubir

To the theory of adaptive signal processing in systems with centrally symmetric receive channels

This paper presents the analytical derivation of joint probability density functions (pdfs) of the maximum likelihood (ML) estimates of a real and complex persymmetric correlation matrices (PCM) of multivariat...

Authors: David I. Lekhovytskiy

Automatic and online setting of similarity thresholds in content-based visual information retrieval problems

Several information recovery systems use functions to determine similarity among objects in a collection. Such functions require a similarity threshold, from which it becomes possible to decide on the similari...

Authors: Izaquiel L. Bessas, Flávio L. C. Pádua, Guilherme T. de Assis, Rodrigo T. N. Cardoso and Anisio Lacerda

Cognitive radar ambiguity function optimization for unimodular sequence

An important characteristic of a cognitive radar is the capability to adjust its transmitted waveform to adapt to the radar environment. The adaptation of the transmit waveform requires an effective framework ...

Authors: Jindong Zhang, Xiaoyan Qiu, Changli Shi and Yue Wu

Generalization of interpolation DFT algorithms and frequency estimators with high image component interference rejection

This paper focuses on the problem of frequency estimation of noise-contaminated sinusoidal. A basic tool to solve this problem is the interpolated discrete Fourier transform (DFT) algorithms, in which the infl...

Authors: Jiufei Luo, Shuaicheng Hou, Xinyi Li, Qi Ouyang and Yi Zhang

Unified LMI-based design of ΔΣmodulators

Optimal finite impulse response (FIR) error feedback filters for noise shaping in Δ Σ modulators are designed by using weighting functions based on the system norms. We minimize the weight...

Authors: M. Rizwan Tariq and Shuichi Ohno

Class-specific kernel linear regression classification for face recognition under low-resolution and illumination variation conditions

In this paper, a novel class-specific kernel linear regression classification is proposed for face recognition under very low-resolution and severe illumination variation conditions. Since the low-resolution p...

Authors: Yang-Ting Chou, Shih-Ming Huang and Jar-Ferr Yang

Multi-target simultaneous ISAR imaging based on compressed sensing

Conventional range-Doppler (RD) inverse synthetic aperture radar (ISAR) imaging method utilizes coherent integration of consecutive pulses to achieve high cross-range resolution. It requires the radar to keep ...

Authors: Gang Li, Qingkai Hou, Shiyou Xu and Zengping Chen

Co-channel interference suppression for multi-cell MIMO heterogeneous network

The heterogeneous network, contains a macro cell and a grid of low power nodes with the same frequencies, can improve the system capacity and spectrum efficiency. Configuring low-power nodes that share the sam...

Authors: Yu Li and Zufan Zhang

Distributed Gram-Schmidt orthogonalization with simultaneous elements refinement

We present a novel distributed QR factorization algorithm for orthogonalizing a set of vectors in a decentralized wireless sensor network. The algorithm is based on the classical Gram-Schmidt orthogonalization...

Authors: Ondrej Slučiak, Hana Straková, Markus Rupp and Wilfried Gansterer

Target maneuver discrimination using ISAR image in interception

Discrimination for target maneuver magnitude and direction switching during the endgame is significant for interception performance improvement. Inverse synthetic aperture radar (ISAR) images carry the informa...

Authors: S.-J. Fan, H.-T. Xiao, H.-Q. Fan and J.-P. Fan

Frequency domain soft-constraint multimodulus blind equalization for uplink SC-FDMA

Single-carrier frequency division multiple access (SC-FDMA) has been adopted and employed as the standard in the 3rd Generation Partnership Project (3GPP) Long-Term Evolution (LTE) uplink multiple-access schem...

Authors: Kabiru Akande, Naveed Iqbal, Azzedine Zerguine, Naofal Al-Dhahir and Abdelmalek Zidouri

Smoothing data association for target trajectory estimation in cluttered environments

For heavily cluttered environments with low target detection probabilities, tracking filters may fail to estimate the true number of targets and their trajectories. Smoothing may be needed to refine the estima...

Authors: Sufyan Memon, Taek Lyul Song and Tae Han Kim