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Due torecent advancement in satellite remote sensing technology, the volume of remote sensing image data grows exponentially, while the processing capability of existing computer system is hard to satisfy the requirements of remote sensing image data accessing. Technological advancements of Geospatial Information Systems (GIS) and cloud did the process in a simpler and acceptable way to share the...
This paper presents about a flying robot for data collection and patrolling purposes. The data collection is done using camera where the output of the camera is given to monitor. The flying mechanism consists of brushless DC motor and propeller which decides the motion and the direction of the robot. The power supply is given by nickel metal hydride battery. The control mechanism requires radio frequency...
The reversible data hiding hides the secret data into an image and the secret data, the original image is recovered without data loss. In this paper, we proposed a reversible steganographic method using repeat accumulate coding. The secret information is embedded using compression codes. This paper presents a dual tree repeat accumulate coding based image-hiding scheme that embeds secret data into...
In a wireless sensor network (WSN), sensor nodes are powered by batteries that can operate for only a short period of time, which results in short network lifetime. The short lifetime disables the application of WSNs for long term tasks such as structural health monitoring for bridges and tunnels, border surveillance, road condition monitoring, etc. In this paper the overall network lifetime is increased...
This paper presents a software-defined radio (SDR) system with reconfigurable architecture for wireless communications. The baseband software implementation by using a low-power fixed-point digital signal processor (DSP) is applied to demonstrate the concept of SDRs for different standards, and different operational modes. For simplicity, two operational modes, quadrature amplitude modulation (QAM)...
This paper aims to study drag based labriform mode of locomotion in fishes and attempts to design and develop a prototype performing pectoral fin motions. The methodology involves pectoral fin mechanism concept generation, design, development, and performance analysis. For labriform mode drag based propulsion, the initial design makes use of a rotating disk on which a planet gear rotates around a...
This paper describes three different conceptual designs and its development, which could be used to form an autonomous underwater vehicle capable of swimming in different modes. Three prototypes have been constructed to mimic mainly anguilliform, labriform, and carangiform modes of swimming. For anguilliform mode, the body is designed with three segments made of flexible polyurethane, actuated and...
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