IJSPR: Volume 07 Number 02
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IJSPR - Volume 07, Number 02

Published On : January 2015
SNo. Paper Title & Authors Page
Abstract: Photovoltaic systems can be of different types: Stand-alone or Grid connected. A stand-alone PV system along with synchronous buck topology is used here. Regulators can be different types like pulse-width modulation, maximum power point etc. The former are normally used for low-power applications, while the final can offer an boost of power up to 25% as compared to their PWM counterpart. A simple, highly-accurate algorithm suitable to be implemented in a low-cost microcontroller has been developed in order to make PV arrays track and operate in their highest control point. The power plan proposed permits parallel association of unlike regulators, consequently building it probable to keep and incorporate preceding gear. Here a battery is regulated with the corresponding power extracted from sun. A microcontroller is programmed to track the MPPT.
Keywords:Maximum Power Point Tracking (MPPT), Synchronous Buck Regulator, Step down converter, photovoltaic.
Abstract: The aim of this paper to build a ultra-capacitor (UC) bank, dc to dc converter topology, and testing rig to perform efficiency testing for various configurations for dc drive with dc motor with the super-capacitor bank against various hybrid electric vehicle regenerative braking profiles. A bank of 5F cells was constructed along with a bidirectional DC to DC converter or a chopper allowing practical testing in two of the four possible bank configurations. It was obtained by that capacitor bank with a higher maximum voltage i.e. one or more cells in series were more effective as there were lower input and output currents and most of losses were restricted to the converter or chopper. At the time of regenerative braking we store the electrical energy it is help to save the energy. In this paper, we selected ultra-capacitor bank for the energy storage device of the equipment.
Keywords:Bidirectional dc–dc converter, energy storage, regenerative braking, ultra-capacitors (UC), diesel locomotive.
Abstract: This paper presents a review of voltage stability & STATCOM in Newton Raphson for power flow analysis. The main purpose of this paper is to present a review of voltage stability and STATCOM is incorporated in power flow analysis. Reactive power flow compensation is improves by the use of STATCOM and voltage profile of the system improves and reduce losses. In this paper a review of voltage stability enhancement by the use of STATCOM. To study the effect of STATCOM in load flow study is performed on IEEE 14 buses with and without STATCOM and the results are then compared to show the effect of STATCOM on the system.NR method is used for the load flow analysis of the system.
Keywords:Facts, Power flow analysis, voltage stability, STATCOM, Newton Raphson.
Abstract: DVB-S2 is the second generation specification for satellite applications. ACM functionality of DVB-S2 provides capacity gain of over 30% in comparison to its predecessor, DVB-S and has the potential to reduce the satellite capacity costs by upto 50%. Current DVB-S2 specifications go up to 32APSK constellation. This gives a parallelization of 5 bits. This paper attempts to design optimized constellations -64, 128 and 256, both symmetrical and asymmetrical ASPK. Accordingly, it suggests that 64APSK, symmetrical is a realizable proposition and should be taken up commercially.
Keywords:M-ary PSK, QAM, APSK, Symmetrical APSK, Asymmetrical APSK, Capacity.
Abstract: Technical advance in Wireless Communication, computation and hardware technologies enable new device known as sensor nodes. In this paper we propose a new approach of generating sensor nodes in different geographical area of a wireless sensor network field. A distance from origin based cluster head selection algorithm is proposed for selecting cluster head for the generated nodes. This algorithm helps for improving the sensor network lifetime and load balancing. Energy conservation is a significant concern in the Wireless Sensor Networks (WSNs). A new technique is proposed by comparing the sending energy of selected cluster head and non-CH among some of wireless sensor nodes based on net distance with base station. The sending energy is calculated and it shows the energy conservation of network.
Keywords:Wireless Sensor Network (WSN), Sensor Node (SN), Cluster Head (CH), Base Station (BS), Energy Efficiency (EE).
Abstract: Current image coding with image fusion schemes make it hard to utilize external images for transform even if multi-focus images can be found in the cloud. To solve this problem, we propose a method of multi-focus image fusion scheme that is different from current image fusion scheme even on the ground. For this purpose, we use GFF-SIFT method which is combination of GFF (Guided Filtering based Fusion) and SIFT (Scale Invariant Feature Transform) method. A fast and efficient image fusion technique is proposed for creating a highly generated fused image through merging multiple corresponding multi-focus images. The proposed technique is based on a two-scale decomposition of an image into a low layer containing large scale variations, and a detail layer acquiring small scale details. A novel approach of GFF-SIFT method is proposed to make full use of spatial consistency for merge of the base and detail layers. Analytical results represent that the proposed technique can obtain state-of-the-art performance for image fusion of multispectral, multimodal, and multi exposure images.
Keywords:Multi-Focus image fusion, Guided Filtering, Scale-Invariant Feature Transform.
Abstract: Today availability of the waste plastics is enormous, as the plastic materials have become part of daily life. They neither get mixed with Municipal Solid waste nor thrown over land area. Their present disposal is either by land filling (or) by incineration. Both the processes are not Eco friendly. Under this circumstance, an alternate use for the waste plastics is also the need of the hour. The results indicate that binder content, test temperature and asphalt mix type are factors that significantly affect abrasion loss. Porous asphalts are more prone to abrasion loss due to its high air voids which results in lesser adhesion between aggregate particles. This study also shows that the abrasion loss sensitivity of VG30 mix is less influenced by the temperature and different binder types. In contrast, the resistance to abrasion loss of porous asphalt is very much affected by temperature variations. Rutting analysis should be carried out under various temperature conditions and wheel loads of different intensities to evaluate performance and strength.The aggregate gradations may be varied to check for the maximum performance of the mixes with coarser aggregates and maximum porosity.Anti-Stripping agents may be utilized to minimize the stripping of aggregates in the mixes.An Investigation on optimum plastic content and other additives which increases the binder property should be given importance.
Keywords:Road Pavements, Waste Plastic.
Abstract: In today’s communication world we are having drastic changes in the format related to OFDM system An OFDM system deals with multiple channels over which information are sent at different frequencies to boast up bandwidth efficiency. During communication an extra unwanted noise signals come across with real signal due to any reason In this project we have dealt with these noise called AWGN in which at the receiver side Bit error rate is improved to recover real image that was sent from transmitter to receiver In order to achieve this we have gone through various modulation techniques such as QAM BPSK QPSK etc These techniques were used for audio or video signals in OFDM but in this project it has been done for image processing to recover original image Along with this IFFT and FFT filters are used at the transmitter and at the receiving end of OFDM system.
Keywords:Wireless communication, equalization, Orthogonal frequency division multiplexing (OFDM), binary phase shift keying (BPSK), Quadrature phase shift keying(QPSK).