The designed sensor enables accurate reconstruction of chest-wall movement caused by cardiopulmonary activities, and the algorithm estimation respiration, heartbeat rate, some indicators heart rate variability (HRV). In particular, quadrature receiver arctangent demodulation with calibration are introduced for high linearity representation chest displacement; 24-bit ADCs oversampling adopted radar baseband acquisition to achieve a signal resolution; continuous-wavelet filter ensemble...

This paper is devoted to study the Razumikhin stability theorem for a class of impulsive stochastic delay differential systems. By developing new lemma, analysis technique, and approach, several novel criteria pth moment exponential are derived related The key feature that time-derivatives functions allowed be indefinite, which loosens constraints existing results greatly. Finally, two examples given illustrate usefulness significance theoretical results.

In this short note, we consider time-varying stochastic functional differential systems with distributed-delay dependent impulsive effects. Such arise from a large number of applications, such as financial markets and population dynamics. By developing some inequality techniques then combining analysis theory, Lyapunov approach, stability criteria for are established. The feature the shows that derivatives Razumikhin functions allowed to be indefinite, restrictions respect system parameters...

Short fiber–reinforced composites (SFRCs) are high-performance engineering materials for lightweight structural applications in the automotive and electronics industries. Typically, SFRC structures manufactured by injection molding, which induces heterogeneous microstructures, resulting nonlinear anisotropic behaviors challenging to predict conventional micromechanical analyses. In this work, we present a machine learning–based multiscale method integrating molding–induced material...

A smart temperature sensor has been realized using a Taiwan Semiconductor Manufacturing Company (TSMC) 0.18-μm standard CMOS process. Substrate positive-negative- positive (PNP) transistors are used to extract the information. Using techniques of dynamic element matching, single-transistor approach, and offset cancellation, process spread between batches on becomes main inaccuracy sources sensor. The uses single-point calibration method that reduces simplifies trimming. can realize an (±3δ)...

The proposal of compute-in-memory (CIM) is a breakthrough for the traditional von Neumann architecture to achieve efficient computing research. This has unique advantages in field thanks supporting multi-line and without data transmission between processor memory. In this paper, an in-memory structure based on 9T SRAM unit proposed, which can both operate memory mode. Compared with previous works, redundant units, computational directly complete XNOR operations storage whole array only one...

Summary In this paper, several new Razumikhin‐type theorems for impulsive stochastic functional differential equations are studied by applying analysis techniques and Razumikhin stability approach. By developing a comparison principle version, some novel criteria of the p th moment integral input‐to‐state derived related systems. The feature shows that time‐derivatives functions allowed to be indefinite, even unbounded, which can loosen constraints existing results. Finally, examples given...

Abstract In this paper, we investigate the exponential stability for a class of impulse stochastic differential equations. Different from previous literature, impulsive times considered in paper are random times. By applying processes theory, analysis theory and Lyaponov method, establish several novel criteria suggested system. Finally, simple examples provided to show validity significance results.

Abstract In this paper, the stochastic finite‐time stability (SFTS) criteria for switched nonlinear systems (SSNS) with nonlocal Lipschitz coefficients are established. The main tools that we used here mode‐dependent limiting average dwell time (MD‐LADT), stopping technology and analysis theory. established show diffusion coefficient, drift coefficient switching law play crucial roles in obtaining SFTS SSNS. Besides, our provide some approaches on how to design achieve if a system contains...

A portable sensor system with signal processing techniques was developed in this paper, aiming to provide remote monitoring of vital signs human subject. The designed based on microwave Doppler radar enables accurate reconstruction subject's motion caused by cardiopulmonary activities and other movement the antenna's field view. algorithm real-time estimation respiration, heart rate real world conditions. be a compact detector which can integrated into device for personal healthcare...

In this paper, some novel stochastic finite-time stability criteria for nonlinear systems with impulse effects are established. The results in paper blackgeneralized the related from two aspects: 1. model is deterministic systems, which means that noise effect can be described as a symmetric Markov process Brownian motion considered our models; 2. criterion established not asymptotic and input-to-state studied form literature. Finally, an example given to show significance blackand...

In this paper, the current harmonic suppression problem of permanent magnet synchronous linear motor (PMSLM) in flux-weakening control is studied by using proposed resonant two degree freedom (2DOF) PID controllers. First, principle analyzed based on mathematical model and voltage constraints PMSLM rotating reference coordinate system. Then a leading angle method designed, which provides wide velocity operation over velocity. Subsequently, resonant-2DOF controllers are adopted to effectively...

Splitting control is the last resort of security control. By splitting whole system into several isolated islands, can ensure stability and power supply under extremely emergency situation. In this paper, a mixed integer linear programming (MILP) based strategy searching model proposed. Connectivity constraints voltage margin in each island are considered to help obtain more practical strategy. The established form so that be easily solved. Additionally, space reduction method on flow...

The construction of digital villages is crucial for rural revitalization, and 3D geographic information data serves as an important support village development. This article primarily introduces the key principles technical processes oblique photogrammetry technology, completes real sence model Taipingshao Village, Guiyang City, Guizhou Province, evaluates accuracy, mean square error in horizontal plane was 0.211m, elevation 0.148m. also analyzes discusses application construction, providing...

Abstract In a complex environment, the single navigation and positioning method has problems of poor accuracy, reliability, integrity. This paper proposes PPP/INS/ODO integrated scheme GPS+BDS-3. Using GPS+BDS-3 dual system, non-ionization combined PPP model is derived, further given, processing strategy time asynchrony lever arm error analyzed. Combining odometer speed measurement information non-integrity constraint information, it improves performance to certain extent. state combination,...

Abstract Several novel th moment asymptotic stability criteria are established for switched stochastic delayed differential systems (SSDDSs) under the framework that time‐delay is unbounded. These obtained by constructing some special sets and using Lyapunov function approach. The features of show form unbounded delay plays an important role in keeping related systems. As a corollary, if number subsystems only one, system reduced to (SDDSs), criterion this also obtained, which can improve...

With the popularity of e-commerce recently, how to control operation cost has become an urgent issue need be solved for all logistics company. This paper proposes improved bin packing approach under consideration fuel consumption delivery vehicle, provide logistic company scheme with least vehicle numbers and consumption. First, controlling costs, a multi-objective function is built minimize number vehicles during delivery. Then simulated annealing algorithm neighborhood operations proposed...

Microwave Doppler radar has potential to provide a practical tool for noncontact detecting cardiopulmonary movement. In this paper, sensor of vital signs was realized based on continuous wave radar, in addition, real-time signal processing studied single target monitoring, including short-time Fourier transform, Sinc interpolation and peak searching. These methods can improve the accuracy, response speed shorten latency considerably, with relatively small amount calculation.