搜索结果: 1-12 共查到“电子科学与技术 measurements”相关记录12条 . 查询时间(0.393 秒)
Propagation of HF radio waves over northerly paths: measurements,simulation and systems aspects
radio waves measurements simulation
2015/9/14
Large deviations in the direction of arrival of ionospherically propagating radio signals from the Great Circle Path (GCP) have serious implications for the planning and operation of communications
a...
Distributed Source Localization Based on TOA Measurements in Wireless Sensor Networks
Distributed Source Localization TOA Measurements Wireless Sensor Networks
2009/9/4
We study the problem of source localization in multihop wireless sensor networks. A fully distributed algorithm based on sensor measurements of time of arrivals (TOAs) is proposed. In contrast to cent...
Distance Relaying Algorithm for Double-Circuit Transmission Line with Compensation for Reactance Effect under Standard Availability of Measurements
Double-circuit transmission line distance protection fault
2009/7/28
This paper deals with non-pilot distance protection of a double-circuit transmission line. Negative impact of the reactance effect, appearing in measuring a fault loop impedance, on operation of the r...
Imaging Tissue Conductivity via Contactless Measurements: A Feasibility Study
Imaging Tissue Conductivity Contactless Measurements Feasibility Study
2009/7/27
The feasibility of a new imaging system is investigated. This system will be used to image electrical conductivity distribution of biological tissues via contactless measurements. This will be achieve...
Modeling and Measurements of Novel Monolithic Filters
Novel Monolithic Filters hairpin resonators ferroelectric materials
2010/12/6
This paper presents novel multilayer tuneable high Q-filters based on hairpin resonators including ferroelectric materials. This configuration allows the miniaturization of these filters to a size tha...
Material Parameter Measurements for Microwave Antireflection Coating Development
microwave absorbent materials Material Parameter Measurements mixed electric
2010/12/6
The main steps for characterization and measurement of microwave absorbent materials in the 1–10 GHz range are introduced. The coaxial reflection-transmission type of material parameter measurem...
VDMOSFET Model Parameter Extraction Based on Electrical and Optical Measurements
VDMOSFET Parameter extraction Lateral parameters Hexagonal cell
2010/12/8
Lateral Device parameters for VDMOSFET (Vertical double diffused metal oxide semiconductor field effect transistor) with hexagonal cells has been extracted by an original model based on electrical and...
Measurements and Analytical Computer-Based Study of CMOS Inverters and Schmitt Triggers
CMOS Inverters Schmitt Triggers
2010/12/13
Modified CMOS inverters with three and four transistors have been made. Two varieties of CMOS Schmitt Triggers have been considered. CMOS Schmitt Trigger with wide hysteresis has been obtained. Comple...
Some Problems With HTSC in Low-Frequency Electric and Magnetic Measurements
HTSC Low-Frequency Electric and Magnetic Measurements
2010/12/15
Sensitivity to magnetic fields is one of the electromagnetic properties of superconductors.
Owing to some special effects, superconductors display extreme sensitivity
to the presence, intensity, and...
Study of Thick Film Resistors By 1/f Noise Measurements
Thick Film Resistors 1/f Noise Measurements
2010/12/21
Knowledge on the conduction mechanism of thick film resistors are limited and often contradictory.In this paper investigations based on temperature dependent 1/f noise measurements are reported.
Pulse Counting in Anodic Breakdown Measurements
Pulse Counting Anodic Breakdown Measurements
2011/1/10
An electronic method, based on the differentiation of the potential curve during anodization at a constant current, is presented for evaluating the number of breakdown events in the scintillation of a...
Hybrid Amplifier Modules for Nuclear Measurements in Space Flight Experiments
Hybrid Amplifier Modules Nuclear Measurements Space Flight Experiments
2011/1/21
Nuclear electronic instruments for the measurement of the precise energy and time-of-flight of charged particles, e.g. heavy ions, are quite often present on scientific satellites. In addition to the ...