S. Rajkumar ¹, G. Malathi ¹

Affiliations
1 School of Computing Science and Engineering, VIT University, Chennai - 600127, Tamil Nadu, IN

Abstract

Objectives: The objective of this paper is to analyze the different image quality metrics by testing and comparing with different distorted set of satellite images. Methods/Statistical Analysis: In this paper, we propose the methods for analyzing the quality of real time images that are corrupted due to different distortions. The several quality metrics are applied and ultimately the best metrics are derived based on the type of degradation. Different metrics such as metric based on single image and metric based on two images have been tested with different real time satellite images from NASA data sets. Findings: This framework will help to identify the metrics in order to prove the proposed filtering schemes that are applied to the corrupted images. Based on the results, we have concluded the characteristics of different quality metrics and further we successfully identified the quality metric appropriate to various distortions. Application/Improvements: The proposed quality metric analysis is used to estimate the performance of any filtering schemes which are used to enhance the quality of any real time images such as remote sensing field.

Keywords

Assessment, Blur, Gaussian, Metrics, Quality, Satellite Images, Salt and Pepper.

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K. Ganeshkumar ¹, D. Arivazhagan ², S. Rajkumar ³

Affiliations
1 Department of Information Technology, Academy of Maritime Education and Training (AMET), 135,East Coast Road, Kanathur – 603112, Chennai, Tamil Nadu, IN
2 Department of E-Governance, Academy of Maritime Education and Training (AMET), 135,East Coast Road, Kanathur – 603112, Chennai, Tamil Nadu, IN
3 Research and Development Division, AMET University135, ECR, Kannathur – 603112, Chennai, Tamil Nadu, IN

Abstract

The later tide from claiming conveyed refusal about management strike Distributed Denial of Service (DDOS) towards excessive-profile net sites, exhibit how harming the ones DDOS strike are added to entryway uncovered the web could be underneath such strike. The advantages for those web destinations had been inaccessibility to hours or indeed going days in addition as an after effect of the strike. In this strike the same time as ship an extensive quantity approximately movement will an exploited character group or arrange. The exploited character can be overpowered subsequently time perusing to such an extent motion that it got here to gatherings deliver minimal alternately no management to its actual clients utility(App)-DDOS strike may a danger to be stealthier also a more amount risky for the normal websites. The blast motion also secondary volume are the as a relatable point qualities for App-DDoS strike additionally streak crowds, it may be no longer difficult for present systems will recognize them simply through measurable elements from claiming movement. The display really worth of effort characterizes the entry grid (AM) to catch fleeting examples of regular streak swarm moreover with screen App-DDoS strike in the course of streak swarm off danger stowed away Semi-Markov version will be used to portray those progress of am will also accomplish an numerical additionally programmed identity.

Keywords

Application Layer, Distributed Denial of Service, Hidden Semi-Markov Model and Access Matrix.

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S. Rajkumar ¹, S. V Saravanan ¹, S. Devendran ², M. Krishna Kumar ²

Affiliations
1 Department of EEE, AMET University, Plot No.135, East Coast Road, Kanathur, Chennai - 603112, Tamil Nadu, IN
2 Department of ECE, Chandy College of Engineering, Chandy Nagar, Mullakadu, Tuticorin-628 005, Tamil Nadu, IN

Abstract

A compact antenna with a coupler is laid down using Substrate Integrated Waveguide (SIW) technique, which operate at X-band of frequencies. The SIW coupler has a SIW section which includes inserted metallic post. These metallic post acts as an inductive-post. SIW innovation is the most talented contender for the achievement of millimetre wave (mm-wave) coordinated circuits. Supported on planar dielectric substrate with bottom and top metal layers implanted with coated metal holes, it offers a compact, low cost, less loss and flexibility. The SIW has dynamic as well as passive components emanating area on the similar substrate. SIW technology has some attractive advantages, such as compact size, low loss, easy construction, low weight, high integration and is suited for all microwave and millimetre-wave works. The utilization of SIW technology encourages us to trim down return loss when weighed against other printed advances. The manufacturing process can simply be finished by means of normal Printed Circuit Board (PCB) process, where this present procedure’s cost will be shortened when assessed with conventional waveguides. The SIW coupler more frequently utilized as a part of radar, point-to-point radio and satellite. Simulations results come about demonstrate the coupler’s execution having low insertion loss, low return loss, and expansive operational data transmission and enclose fine seclusion.

Keywords

Micro-Strip Line Feed, Micro-Strip Patch Antenna, Printed Circuit Board, Substrate Integrated Waveguide Coupler.

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