Recent Advances in Electrical & Electronic Engineering - Volume 11, Issue 2, 2018

Background: Harris corner detection extracting corner features based on the characteristic value of the second order matrix, is regarded as one of the most successful algorithms in corner detection. Methods: OTSU algorithm abbreviation of the maximum variance between clusters can calculate the maximum variance to distinguish the background area and the target area based on the image gray histograms. To obtain Read More

Background: Switched reluctance motors have a strong nonlinear performance due to their structure and operation mode. The performance and control strategy of this kind of motor are obviously different from those traditional strategies. As a result, the accurate model and high performance control of the switched reluctance motor prove to be very important and has obtained wide researches. Method: A kind of Read More

Background: With the development of internet era, the combination of the basketball teaching and multimedia becomes more closer, and the use of computer multimedia technology to effectively test the tactical awareness has been widely concerned. Methods: In this paper, based on the analysis of the current development trend of basketball, we can conclude that basketball tactical awareness training is more important. Read More

Background: A new technology for indoor positioning is proposed in this paper by applying combined RFID (Radio Frequency ID) / IRID (Infrared ID) and spatial fluctuations of the ambient magnetic field. Due to the presence of interior reinforced concrete construction, furniture, electronics and other indoor subjects, the distribution of the magnetic field intensity is fluctuated. Methods: Based on the spatial fluctuations, a particle fi Read More

Background: A grid-tied strategy of matrix converter (MC) based on the dual-side current closed loop is presented here. Methods: This paper designs dual-closed-loop regulators in which source current and grid current are used as the outer-loop and the inner-loop controlled variables, derives the duty ratio expressions of MC in different time slot, and complete the prototype. The capacitor voltage and the inductance cu Read More

Background: The Internet of Things (IoT) has been heralded as the “next big thing” waiting to be realized. IoT revolves around increased machine-to-machine communication and it encompasses various embedded sensorsand actuators that assist users in monitoring and controlling objects remotely in many fields and applications. Methods: IoT's special characteristics introduce challenges in the field of retrieval technology. Read More

Background: To aim at the deficiencies of traditional Z-Source Inverter (ZSI) with its voltage boost conversion ability being limited and huge inrush current existing during the startup under shoot-through state, a novel switched inductor type ZSI topology is proposed in this paper. Methods: The ZSI presented applies the change of working state of the diode in switched inductor to deliver the energy stored in the inductor to the lo Read More

Background: A MOS transistor operating in weak inversion exhibits logarithmic behavior and could serve as replacement of bipolar transistors which have often been employed in implementing log domain circuits. However, threshold voltage restricts the operation of MOS based log domain circuits at low supply voltage which could be eliminated by floating gate transistors (FGMOS) at the cost of low gain, low output impedan Read More

Background: Outdoor-working insulators could be degraded due to the changes of the environmental factors. When it degrades to certain extent, the insulating property will reduce, thus the monitor of insulators' working condition which is of significance. Methods: This paper, designs a faulty detecting device based on “Solar Blind” UV pulse for transformer substation insulators and put forward a multivariant nonlinear regressi Read More

Background: Electrooculogram (EOG) signal is one of the bioelectric signals acquired from the human body to study the movements of eyes and also to design and develop assistive devices. These devices can be mobility devices, video gaming devices or any other assistive device. Methods: Assistive devices are especially designed for quadriplegic or spinal cord injured patients. Motors are one of the key components in the d Read More

Background: This paper presents a novel spatio-temporal learning method to generate knowledge of fine-grained cultivation of Dendrobium officinale from large climatic sensor data. In recent years, datadriven precision agriculture, which is strongly connected with data mining techniques, has a great impact on traditional farming. Most of the environmental control methods in the green house are based on hum Read More

Background: In this paper, synchronization is theoretically investigated in two quantum cascade semiconductor lasers coupled with delayed negative optoelectronic feedback. Synchronization characteristics and the influence of parameter mismatches on synchronization performances are investigated. Results: The results indicate that the complete synchronization can be realized under suitable system parameters. Thro Read More

Background: NDN routers forward packets by using multiple components that contain names similar to those of URLs. Therefore, name lookup is a key issue in NDN research field. Method: In this study, we propose a name lookup method called as sum-up counting Bloom filter to reduce false positive rate and storage time for NDN. Results: Experimental results show the efficiency of the proposed method compared with conve Read More

Background: In this paper, two enhanced current controlled instrumentation amplifiers are proposed. These circuits, which have no passive elements, use second-generation current controlled conveyors, as basic building blocks, and a grounded active resistance. Materials & Methods: The instrumentation amplifiers are positively affected by certain features of the current controlled conveyor, such as: simple structure, Read More

Background: Many applications in voice processing have high inherent parallelism. Field programmable gate array (FPGA) has shown very high performance in spite of its low operational frequency by fully extracting the parallelism. Nevertheless, recent CPU and graphic processing unit (GPU) have also an inherent for high performance. Methods: In fact, it becomes possible to utilize the parallelism using multi-cores, whic Read More

Background: This work presents results based on realistic data as inputs obtained from the NASA surface metrology consisting a PV-Wind hybrid system. Methods: This system includes PV and wind subsystems, load and a hybrid system. The system included a 3.6kW PV array and a 3.2kW wind turbine and collected realistic data from January to December 2015 from the NASA website at Manipal location (INDIA) to calculate Read More

Background: A W-band Sheet Electron Beam (SEB) Traveling-Wave Tube (TWT) based on Three-Slot Staggered-Ladder (TSTL) Coupled-Cavity Slow-Wave Structure (CC-SWS) is proposed in this paper. Methods: The high-frequency characteristics of TSTL CC-SWS are analyzed in detail. Well-matched input/output couplers that solve the problem of energy coupling between the SWS and the external circuit are designed. In add Read More

Background: Face tracking technology has been paid more and more attention with the development of intelligent techniques. Many methods have been used for face tracking, including the particle filter algorithm and Particle Swarm Optimization (PSO). However, these methods generally ignore the motive and the optimal solution of the particle. Methods: A particle filter based on the improved Differential Evolution Algorithm (DEF Read More

Background: This paper presents a novel optimized Fractional-Order Proportional-Integral Derivative (FOPID) controller for controlling the terminal voltage of an automatic voltage regulator system. The parameters of the proposed controller are optimized using a recent meta-heuristic technique known as Grey Wolf Optimizer (GWO). Methods: A recent meta-heuristic technique known as Grey Wolf Optimizer (GWO) is us Read More