An Improved and Cost Effective Radio Frequency based Object Detection System

Cost Effective GPS - GPRS Based Object Tracking System

This paper proposes and implements a low cost object tracking system using GPS and GPRS. The system allows a user to view the present and the past positions recorded of a target object on Google Map through the internet. The system reads the current position of the object using GPS, the data is sent via GPRS service from the GSM network towards a web server using the POST method of the HTTP pro...

Radio Frequency ‘Sutureless’ Fistulotomy: An Effective Modification of the Conventional Technique

Change Detection Using an Effective Object-based Approach

Change detection in imagery is quite useful generally but it has particular value in the remote sensing context. The conventional change detection methods based on pixel, which are appropriate to the low/middle resolution images, could not model the high-resolution imagery very well. In this case the object-based change detection techniques become effectives. The main advantage of the object-ba...

A Radio-frequency Measurement System for Metallic Object Detection Using Pulse Modulation Excitation

Guns and knives have imposed a significant threat to public safety. Based on the electromagnetic characteristics of the materials of guns and knives’, techniques concerning Electromagnetics (EM) e.g. walk-through metal detection equipment and X-ray and THz screening system have been used in an effort to detect and characterise them. Different EM frequencies for metallic object detection have de...

Improved Knock Detection Method Based on New Time-Frequency Analysis In Spark Ignition Turbocharged Engine

Premature combustion that affects outputs, thermal efficiencies and lifetimes of internal combustion engine is called “knock effect”. However knock signal detection based on acoustic sensor is a challenging task due to existing of noise in the same frequency spectrum. Experimental results revealed that vibration signals, generated from knock, has certain frequencies related to vibration resonan...