نتایج جستجو برای: high pass filter hpf
تعداد نتایج: 2184065 فیلتر نتایج به سال:
In this paper, Gaussian and elliptic high pass filters are analyzed for image sharpening qualitatively and quantatively . The filters are implemented in frequency domain using matlab software. Experiments are performed to compare the performance of both the filters ,processed images are presented. The results demonstrate that elliptic yields better results.
This paper reports a four-pole microstrip high-temperature superconducting (HTS) band-pass filter with a quasi-elliptic function response. A microstrip filter configuration that allows a pair of transmission zeros to be placed at the band edges is described. The filter was fabricated using single-sided YB2Cu3O7 superconducting thin film deposited on a LaAl2O3 single crystal substrate of size &n...
INTRODUCTION Multi-electrode array (MEA) systems and human induced pluripotent stem (iPS) cell-derived cardiomyocytes are frequently used to characterize the electrophysiological effects of drug candidates for the prediction of QT prolongation and proarrhythmic potential. However, the optimal experimental conditions for obtaining reliable experimental data, such as high-pass filter (HPF) freque...
In this paper will be reported the study and implementation of a single stage High Power Factor (HPF) electronic ballast for High Pressure Sodium (HPS) lamps using a LCC filter. In the recent years many authors are working to obtain single stage HPF electronic ballast for fluorescent lamps [1][2]. Normally to obtain HPF in electronic ballast for high pressure sodium lamps a Power Factor Preregu...
In this paper, Gaussian and elliptic high pass filters are analyzed for image sharpening qualitatively and quantatively . The filters are implemented in frequency domain using matlab software. Experiments are performed to compare the performance of both the filters ,processed images are presented. The results demonstrate that elliptic yields better results.
This paper aims is to design an integrated navigation system constituted by low-cost inertial sensors to estimate the orientation of an Autonomous Underwater Vehicle (AUV) during all phases of under water and surface missions. The proposed approach relied on global positioning system, inertial measurement unit (accelerometer & rate gyro), magnetometer and complementary filter technique. Complem...
State of charge (SoC) imbalance and dc bus voltage deviations are significant issues for distributed battery energy storage systems in autonomous microgrid applications. Accordingly, a high-pass filter (HPF) based SoC balancing method is proposed to achieve balance by considering different SoCs capacities; A band-pass (BPF) power droop control used accomplish power-sharing compensation. Through...
ZY-1 02D is China’s first civil hyperspectral (HS) operational satellite, developed independently and successfully launched in 2019. It can collect HS data with a spatial resolution of 30 m, 166 spectral bands, range 400~2500 nm, swath width 60 km. Its competitive advantages over other on-orbit or planned satellites are its high large width. Unfortunately, the relatively low may limit applicati...
In this paper,Hybrid power filer (HPF) six switch two leg inverter for improved harmonic campanstion. The praposed scheme is required to an other active filter with passive filter un luckily most of the HPF are have common drawback a most number of passive components or transformer. The HPF have small rated inverter and LC filter of this proposed method. HPF are connected to the grid with out a...
In a world where the energy crisis is becoming overwhelming, demand for integrating renewable sources increasing and forming microgrids an essential solution. The new microgrid systems, which depend mainly on instead of conventional synchronous generators, come with low inertia concern. This paper proposes virtual controller based high-pass filter (HPF) to support frequency AC while maintaining...
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