The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
This paper presents a 16-channel analog front-end (AFE) for wearable dry EEG recording. A novel AFE architecture that combines time division multiplexing (TDM) and chopping stabilization (CS) to improve the system common mode rejection ratio (CMRR) and the input-referred noise is proposed. With TDM, the reference electrode is connected to single channel input during its time slot to avoid the CMRR...
Benefited from the flexibility of Smart Grids, various dynamic lightning protection and Artificial Intelligence-based lightning protection methods become available. Based on Artificial Intelligence technologies, the paper proposes a method of lightning-caused faults forecasting for Smart Grid distribution systems. A self-balancing dynamic lightning protection, which assists the self-healing function...
Current multi-user detection scheme for sparse code multiple access (SCMA) is iterative message passing algorithm (MPA) in which the message update strategy is in a parallel manner. To take full advantage of MPA's feature of parallelism, this letter proposes a hardware implementation strategy of max-log MPA decoder used in SCMA systems with soft baseband, which is based on general-purpose computing...
With the electronic packaging techniques and electronic equipments toward a high integration and miniaturization development, high thermal conductivity and excellent thermo-mechanical properties of polymer-based composites have attracted significant attentions in the recent years. SiO2 as a common inorganic filler has been widely used in electronics packaging materials, due to its low coefficient...
In recent years, the core-shell hybrid materials are one of the hotspots in current research and attracted widely attentions[1]. The hybrid particles have good conductivity, while the density and cost would be greatly reduced as compared with the pure silver powder. And the hybrid particles have applied in the electromagnetic shielding materials, conductive coatings and absorbing materials because...
The downlink positioning method specified by 3GPP is a part of LTE location service. The method utilizes the time difference of Positioning Reference Signal (PRS) for ranging, therefore time delay estimation of PRS is a fundamental question in the method. A conventional algorithm relies on time correlation however faces challenges in multipath channel. For OFDM signal, Multiple Signal Classification...
This paper is concerned with the fusion estimation problem for multi-sensor discrete time-invariant linear systems with multiple time delays and colored measurement noise. In order to transform those systems into systems with correlated white noise, a system transformation method is introduced. A sequential covariance intersection (SCI) fusion Kalman filter is given based on the local optimal recursive...
Many man-made objects have intrinsic symmetries and Manhattan structure. By assuming an orthographic projection model, this paper addresses the estimation of 3D structures and camera projection using symmetry and/or Manhattan structure cues, which occur when the input is single-or multiple-image from the same category, e.g., multiple different cars. Specifically, analysis on the single image case...
The predictability of atomic clock is generally used to characterize its overall performance. Anomalous clock behaviors lead to greater prediction error in traditional prediction method, such as polynomial fitting predictor and Kalman filter predictor. Our previous work developed random pursuit strategy (RPS) to avoid or minimize above the problem. It was further applied to real data of three Hydrogen...
This paper is concerned with the fusion estimation problem for multi-sensor discrete time-invariant linear systems with multiple time delays and colored measurement noise. A fast sequential covariance intersection (SCI) fusion Kalman filter is given based on the augmented Kalman filter in the linear minimum variance sense, which avoids the calculation of the cross covariance matrices between local...
New regulation on cybersecurity for critical infrastructure mandates the implementation of a minimum set of security measures to achieve satisfactory security posture for the respective business domain. The organization responsible for operation of a given critical infrastructure may have some flexibilities in selecting recommended or mandatory national or international standards used for compliance...
This paper describes an integrated multichannel neural recording analog front end (AFE) with a novel area-efficient driven right leg (DRL) circuit to improve the system common mode rejection ratio (CMRR). The proposed AFE consists of an AC-coupled low-noise programmable-gain amplifier, an area-efficient DRL block and a 10-bit SAR ADC. Compared to conventional DRL circuit, the proposed capacitor-less...
For the multisensor descriptor systems with correlated noises, the WMF full-order Kalman smoother is presented. First, the centralized fusion descriptor system is obtained. Then this centralized fusion descriptor system is transformed to the descriptor system with uncorrelated noises. Second, the weighted measurement fusion (WMF) descriptor system is presented. Finally, the WMF full-order Kalman and...
Physical layer security has become popular in recent years. In satellite communication systems, wire-tap users are easy to obtain information from satellite side for the range of the beam is broad. In this work, we consider the multi user scenario, by adopting the dynamic beam forming in satellite networks, the beam could be restricted into the small range, where wire-tap users could not obtain information...
Multiple-In-Multiple-Out (MIMO) o‚ffers great potential for increasing network capacity by exploiting spatial diversity with multiple antennas. Multiuser MIMO (MU-MIMO) further enables Access Points (APs) with multiple antennas to transmit multiple data streams concurrently to several clients. However, the uplink data transmission (from client to AP) of MU-MIMO is more vulnerable because its wide...
Inverted Type-I quantum rings (QRs) are a recently developed class of nanostructure in which a lower bandgap material is laterally grown as a crown of same thickness around a higher bandgap nanoplatelet (NPL) core [l·2]· e.g. core/crown CdS/CdSe as shown in Fig. 1(a). For this work, we have colloidally synthesized 3 monolayer (ML) thick CdS/CdSe QR samples using seed-mediated method, by using 3ML...
This paper presents a multi-channel analog front-end (AFE) for wearable dry EEG recording system. A novel AFE architecture is proposed to combine Time Division Multiplexing (TDM) together with chopping stabilization to improve the system-level common mode rejection ratio (CMRR) and the AFE input-referred noise. By utilizing TDM technique, single 2nd stage amplifier can be shared by multiple channels,...
In this paper, we consider a simultaneous wireless information and power transfer (SWIPT) system with a full-duplex (FD) receiver and an energy-harvesting (EH) eavesdropper. The FD receiver decodes the information that should be kept secret from the EH eavesdropper and sends jamming signals to degrade the eavesdropper simultaneously using the energy it harvests from the source. An optimization problem...
It presents a sliding mode strategy integrated with rear angle and yaw moment to control the four-wheel-steering vehicle. The slip angle and yaw rate of vehicle gravity center are controlled variables. One input of sliding mode controller is the front steering angle which is measured by sensor, while others are estimated values of disturbance bound and the errors of slip angle and yaw rate. Furthermore,...
Considering the time-varying scaling function matrix and system disturbances, a new sliding mode control strategy is proposed to realize modified function projective synchronization (MFPS) of two different fractional-order hyperchaotic systems, meanwhile improve the control robustness of synchronization system. From the MFPS error equations, combining a proper fractional-order exponential reaching...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.