MIMO iterative channel estimation based on extended Kalman filter by Mingfu LI, Yong LIAO, Xuanfan SHEN

“…In high-speed environment,fast fading and non-stationary limits the channel estimation performance,so a channel estimation method for high-speed mobility in MIMO downlink was proposed.A self-feedback extended Kalman filter (EKF) was set up to track the channel response and correlation parameters.An iterative detector ＆amp; decoder receiver was adopted to deal with the problem that the observation equation is an underdetermined equation.The simulation results show that compared with least squares(LS) in high speed environment,the proposed method improves the channel estimation accuracy and performance of whole system.And it could be applied in baseband signal processing of wireless receiver in high-speed train.…”
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Unusual Operation of the Junction Transistor Based on Dynamical Behavior of Impurities by Roberto Baca Arroyo

“…Hence, the impurities-controlled electrical properties indicate that the observed unusual operation can be a good strategy to optimize signal processing in electronics.…”
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Analytical Solutions for Nonlinear Dispersive Physical Model by Wen-Xiu Ma, Mohamed R. Ali, R. Sadat

“…Nonlinear evolution equations widely describe phenomena in various fields of science, such as plasma, nuclear physics, chemical reactions, optics, shallow water waves, fluid dynamics, signal processing, and image processing. In the present work, the derivation and analysis of Lie symmetries are presented for the time-fractional Benjamin–Bona–Mahony equation (FBBM) with the Riemann–Liouville derivatives. …”
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Detecting Disease in Radiographs with Intuitive Confidence by Stefan Jaeger

“…The paper underpins this thesis with theoretical results in neural signal processing, stating that a sine/cosine relationship between the actual input signal and the perceived (learned) input is key to neural learning processes. …”
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Systems resource allocation algorithm for RIS-assisted D2D secure communication based on parallel CNN by Zhengyu ZHU, Gengwang HOU, Chongwen HUANG, Gangcan SUN, Wanming HAO, Jing LIANG

“…To meet the requirements of intelligent signal processing and physical layer security, aiming at the shortage of spectrum resources, a resource allocation algorithm for reconfigurable intelligent surface (RIS)-assisted the device to device (D2D) communication was proposed.D2D users communicated by multiplexing the spectrum resources of cellular users.Considering the constraints of D2D transmission rate, base station transmission power and RIS transmission phase shift, the problem of maximizing user security rate was formulated.To solve the nonlinear programming problem, a parallel convolutional neural network (CNN) algorithm was proposed to obtain the optimal resource allocation scheme.Simulation results show that the parallel CNN algorithm can effectively improve the secrecy rate and it is significantly better than other benchmark algorithms.…”
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Recent Progress of Silicon Photonics for Middle-Infrared Application by Haowen Shu, Zhaotang Su, Xingjun Wang, Zhiping Zhou

“…“Capacity Crunch”in NIR field needs to be forestalled since the pressure of information transmission，processing and storage is continually growing.Silicon photonics，with compatibility of CMOS，compact structure and low fabrication cost，shows its superiority in the field of mid-IR transmission and signal processing.Thus a lead forward is excepted to be realized in large-scale integration of mid-IR devices and nonlinear optical and other field.The strengths and challenge of silicon photonics in mid-IR application were estimated firstly.Then some“building block”components of silicon photonics in mid-IR（waveguides，beam splitter/combiner，diode，etc）were introduced.Achievements of devices （nonlinear optical devices based on FWM，frequency comb in sensing field and laser，modulator，detector in communication field）within the last five years were presented.Finally，the conclusion was made for recent research progress.…”
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Research on multi-domain collaboration based method of TDD large-scale networking by Xiaoyun WANG, Wei DENG, Long ZHANG, Qi SUN

“…How to maximize the network service capability under the constraints of massive nodes and multi-domainresources is the core problem faced by TDD large-scale networking.The method of TDD large-scale networking under fully collaborative optimization architecture were innovatively proposed, which could maximize network service capabilities through inter layer and intra layer collaboration among wireless connection layer, signal processing layer and service control layer.Aiming at efficient use of wireless resources, the method of multi-domain conversion in wireless connection layer were put forward, including the principles and mechanism of space-time-frequency-code multi-domain conversion.The results of practical verification in 4G/5G existing network show that the proposed architecture and method of TDD large-scale networking can effectively control the interference while improving utilization of multi-domain resourcesto maximize network capacity.…”
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Test of Transmission Error and Analysis of Dynamic Performance of a High Speed Straight Bevel Gear by Chen Qinglan, Jiang Ping, Hu Zehua, Tang Jinyuan

“…The dynamic property parameters of the gear pair are researched by the analysis of the experiment data with the signal processing approach. According to the comparison of the dynamic transmission error and the vibration behavior tested near the corresponding area of the gearbox,the results show,for the straight bevel gear pair,the shaft frequency components are the main frequency components of the dynamic transmission error,the low frequency components of the dynamic transmission error vary obviously with the rotation speed,the effect of the dynamic transmission error and the vibration acceleration near the supporting bearings on describing the dynamic responses are consistent.…”
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Possibilities for Advanced Encoding Techniques at Signal Transmission in the Optical Transmission Medium by Filip Čertík, Rastislav Róka

“…This paper presents a possible simulation of negative effects in the optical transmission medium and an analysis for the utilization of different signal processing techniques at the optical signal transmission. …”
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Detection Performance Analysis of the Standard FDA and FDA-MIMO Radar in the Gaussian Background by Yongze Liu, Yuehong Ma, Haiming Jing

“…This paper studies the optimal detection performance of the standard frequency diverse array (FDA) radar and FDA multi-input multioutput (FDA-MIMO) radar in Gaussian clutter and noise. Array signal processing scheme at the receiver is firstly designed to obtain the array steering vector containing range, azimuth, and frequency increment. …”
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Fault Feature Extraction of Gearbox based on Adaptive VMD by Wenyao Li, Wengang Yang

“…The effectiveness of this method is further determined by the measured signal processing. The composite fault characteristics such as gear spalling and bearing balls are finally determined.…”
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Research on low-complexity XL-MIMO wireless transmission design by Ruirui SUN, Yu HAN, Shi JIN, Jue WANG

“…Extra-large scale MIMO (XL-MIMO) can meet the requirement of high spectral efficiency in 6G communication, but also faces the challenge caused by the increase in computational complexity.It is found that the unique spatial non-stationary characteristics of XL-MIMO channel brings new possibilities for low-complexity wireless transmission design.Firstly, starting from the near-field propagation effect, the research results of XL-MIMO channel characteristics analysis and channel modeling were combed, and the causes of spatial non-stationarity were deeply discussed.Furthermore, the concept of array visibility region (VR) in XL-MIMO was introduced, and the low-complexity wireless transmission design combined with VR information was discussed.Then, from the perspective of sub-array partition and distributed signal processing, the implementation of XL-MIMO low-complexity system architecture was introduced, and the corresponding design schemes were summarized.Finally, the future research direction was prospected.…”
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Preconditioning Filter Bank Decomposition Using Structured Normalized Tight Frames by Martin Ehler

“…If, in addition, frame elements have equal norm, then the signal energy is spread through the various filter bank channels in some uniform fashion, which is often more suitable for further signal processing. We start with a given generalized frame whose elements allow for fast matrix vector multiplication, as, for instance, convolution operators, and compute a normalized tight frame, for which signal analysis and synthesis still preserve those fast algorithmic schemes.…”
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Discrete Subspace Multiwindow Gabor Frames and Their Duals by Yun-Zhang Li, Yan Zhang

“…Such a scenario can model many practical signals and has potential applications in signal processing. In this paper, using a suitable Zak transform matrix we characterize discrete subspace mixed multi-window Gabor frames (Riesz bases and orthonormal bases) and their duals with Gabor structure. …”
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Fault Diagnosis of Roller Bearing based on Hybrid Feature Set and Weighted KNN by Chen Fafa, Li Mian, Chen Baojia, Chen Congping

“…Firstly,those early fault features of roller bearing are calculated based on the signal processing method in time domain,frequency domain and time- frequency domain to construct hybrid feature set. …”
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Design and Application of Electromechanical Control System Based on Computer Fault Tolerance Technology by Rui Wei

“…In order to improve the stability and control effect of the electromechanical control system, this paper designs the electromechanical control system combined with the computer fault-tolerant technology and proposes an electromechanical control signal processing algorithm. In order to improve the accuracy of the path loss calculation, according to Fresnel’s law, this paper deduces the expression of the reflection coefficient of electromechanical control signal with the distance between the transmitting antenna and the receiving antenna as the main variable and then compares the path loss with the ground and the ceiling as the reflecting surface. …”
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Local Fractional Z-Transforms with Applications to Signals on Cantor Sets by Kai Liu, Ren-Jie Hu, Carlo Cattani, Gong-Nan Xie, Xiao-Jun Yang, Yang Zhao

“…The Z-transform has played an important role in signal processing. In this paper the Z-transform has been generalized by the coupling of both the Z-transform and the local fractional complex calculus. …”
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DEEP NEURAL NETWORK-BASED APPROACH FOR COMPUTING SINGULAR VALUES OF MATRICES by Diyari A. Hassan

“… Matrix factorization techniques, such as Singular Value Decomposition (SVD), Eigenvalue Decomposition (EVD), and QR decomposition, have long been pivotal in computational mathematics, particularly for applications in signal processing, machine learning, and data analysis. …”
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Interference alignment based spectrum sharing and user scheduling for cognitive radio MIMO system by Zhao LI, Jian-dong LI, Qin LIU, Biao SHEN

“…In communication scenario with multiple cognitive radio (CR) multi-input multi-output (MIMO) users,signal processing algorithm was designed based on interference alignment (IA) such that transmissions of cognitive and authorized signal were carried out in mutual orthogonal sub-spaces.Conflict-free utilization of spare spatial channel(s) authorized by primary system was achieved by cognitive user.Moreover,the difference of spatial transmission performance originating from various channel matrices was exploited to implement appropriate user scheduling.Simulation results show that the proposed method can utilize spare spatial channel resource effectively and obtain multiuser diversity gain.On the premise that authorized service is protected from disturbing,transmission rate of cognitive user is improved.…”
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Electronically Tunable Transimpedance Instrumentation Amplifier Based on OTRA by Rajeshwari Pandey, Neeta Pandey, Sajal K. Paul

“…Operational transresistance amplifier (OTRA) is the most suitable analog building block (ABB) for transimpedance type signal processing due to its very nature of current input and voltage output. …”
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