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Research presented in the following paper contrasted the modern optimal robust control method with classical one, applied for a landing control system of a small unmanned aerial vehicle. Philosophically speaking, the optimal control used H2 method meets excellent dynamic performance, while the robustness given by the H∞ method diminish the effect of disturbance to the performance output. Accordingly,...
Medical data (i.e., medical image and medical record) is private which should be protected before being transferred or stored. There have been some methods proposed by implementing various algorithms, such as steganography. It is sometimes combined with the shared secret method, so that, the reconstruction of the original data must be done by some users. It is believed that this method increases the...
From the time of early exploration in the area of programming languages, many tools have been employed to introduce novice programmers to programming. The most common tools entail flowchart-based notation as well as programming environments based on icons. More research in this field has revealed that the lack of problem-solving skills, which is considered as one of the prominent shortcomings that...
In recent years the usage of the Internet and the hosting of virtual machines in a data center have been increasing in a dramatic manner which leads to IPv4 address depletion issue. Consequently, the transition from IPv4 to IPv6 has become inevitable and fairly urgent. Software-Defined Networking (SDN) is one of the recently emerging networking paradigm which separate the control and data plane logic...
Digital mammogram has become the most effective technique for early breast cancer detection. The most common abnormality that may indicate breast cancer is masses. The challenge lies in early and accurate detection to overcome the development of breast cancer that affects more and more women throughout the world. Computer Aided Diagnosis (CAD) is used to help the radiologist in interpretation and...
The ultrasonic range meter measures the distances separating obstacles from a reference point based on ultrasonic waves. Like the LIDAR (Laser Imaging Detection and Ranging), this project is desired to measure the distance as well as the laser angle in order to localize the surrounding objects. Unlike LIDAR and all available range meters, this new low cost design can measure the distances using one...
Square root calculation is an important operation in digital signal processing. A parallel architecture design for predictive square root algorithm is introduced. It is a parallel version of our previous research of iterative square root algorithm architecture. This parallel design can produce square root and remainder values directly without any additional corrections and without any registers. It...
Image segmentation is a process that significantly important for machine vision system such as automatic fruit grading system. This process separates an image into several areas to extract the interest object from its background. However, the segmentation task is difficult for isolating the images that captured in outdoor environment. This is due to the existence of non-uniform illumination on the...
The development of data communications enabling the exchange of information via mobile devices more easily. Security in the exchange of information on mobile devices is very important. One of the weaknesses in steganography is the capacity of data that can be inserted. With compression, the size of the data will be reduced. In this paper, designed a system application on the Android platform with...
Image processing plays an important role in extracting useful information from images. However, the image processing and the process of translating an image into a statistical distribution of low-level features is not an easy task. These tasks are complicated since the acquired image data often noisy, and target objects are influenced by lighting, intensity or illumination. In the case of flower classification,...
Urban forest is a land where the trees grow cohesively and tightly in urban area, which is defined as urban forest by the competent authority. The main functions of urban forest are to keep and restore the micro climate and aesthetic value; keep water; create balance and harmony of the urban physical environment, also support the biodiversity conservation of Indonesia. Its making keeps the sustainability...
An improved method for estimating the symbol timing offset based on symmetric correlator using statistical change of correlator in preamble-aided OFDM systems is presented. It uses a preamble structure that have symmetrical property and combines with statistical change of Correlator to achieve a near-ideal timing performance without degradation in multipath channel environment. Computer simulations...
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