IJITEE (International Journal of Information Technology and Electrical Engineering)
IJITEE (International Journal of Information Technology and Electrical Engineering), with registered number ISSN 2550-0554 (Online), is a peer-reviewed journal published four times a year (March, June, September, December) by Department of Electrical engineering and Information Technology, Faculty of Engineering, Universitas Gadjah Mada.
IJITEE (International Journal of Information Technology and Electrical Engineering) invites manuscripts in the various topics include, but not limited to, Information Technology, Power Systems, Digital Signal Processing, Communication Systems
Articles
93 Documents
<![CDATA[Prediction of Peat Forest Fires Using Wavelet and Backpropagation ]]>
<![CDATA[Novera Kristianti]]>;
<![CDATA[Albertus Joko Santoso]]>;
<![CDATA[Pranowo Pranowo]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 2 (2018): June 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.42156
<![CDATA[One of the causes of smog as well as climate damage, particularly in Palangka Raya, Center Kalimantan, are peat forest fires. There are a lot of losses inflicted by the smog including the increasing number of people who suffer respiratory infection (ARI) due to polluted air and any other related aspects. Peat fires are problematic to overcome because the locations of fires are difficult to be accessed. This paper focuses on building the system to predict the distribution of peat forest fire hotspots by utilizing satellite imagery. In designing the system for predicting the fire hotspots distribution, wavelet orthogonal was used as the initial processing of mapping the distribution of peat forest fire hotspots. Meanwhile, backpropagation method was used to identify the fire hotspot distribution patterns of peat forest fire in this system. From the result of the data tested which had been done for predicting the peat forest fire hotspots, the decomposition image obtained using Haar wavelet had the highest percentage of accuracy to recognize the fire hotspots, which is 90%. The recency of this system was its ability to predict the peat forest fire hotspots distribution which can be used as peat forest fires prevention, especially in Palangka Raya, Central Kalimantan.]]>
<![CDATA[Role Analysis of Distributed Generation Towards Transmission Expansion Planning Using MILP ]]>
<![CDATA[Gessa Firman Febrian]]>;
<![CDATA[Sasongko Pramono Hadi]]>;
<![CDATA[Sarjiya Sarjiya]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 2 (2018): June 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.42551
<![CDATA[Electricity demand increase as function of population and economic activity growth. To meet the demand growth, one kind of approaches to expand electrical system is to calculate the need of generating unit and the result will be used to determine the needs of transmission line. In this research, a model was developed with focused on transmission line expansion based on Mix Integer Linear Programming method. The objective function was to minimize overall investment cost for transmission and operating cost of all generating units. The developed model was implemented in 6-bus Garver’s test system. Distributed generation implementation impact is also studied in this study in term of network configuration and overall expansion cost. The results show that distributed generation implementation will differ the network configuration and reduce the overall system cost, with overall system cost with and without distributed generation implementation was $106.4 million and $103.18 million respectively.]]>
<![CDATA[Random Time Delay Mitigation in Pulse Radar Systems Implementation using Universal Software Radio Peripheral (USRP) and GNU Radio Companion (GRC) ]]>
<![CDATA[Alifia Fitri Utami]]>;
<![CDATA[Iswandi Iswandi]]>;
<![CDATA[I Wayan Mustika]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 3 (2018): September 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.42873
<![CDATA[Abstract— Radar or radio detection and ranging has a basic function to detect and measure a target range. One of the latest developments is Software Defined Radio (SDR)-based radar. An example of SDR implementation is by using Universal Software Radio Peripheral (USRP) as hardware and GNU Radio Companion (GRC) as software. The simplest radar type is pulse radar in which system timing is crucial. Meanwhile, in pulse radar system implementation using USRP and GRC, there is an issue with the random processing time delay between communication protocol of USRP and computer running the GRC, which causes incorrect measurement. This research aims to analyze the random time delay in the pulse radar system implementation by using USRP and GRC to anticipate the effect of random time delay. Pulse radar systems implementation is administered by transmitting 128 bits of Barker code and performing correlation between transmitted and received radar signal. Research result shows that the random time delay can be anticipated by making the direct reception from radar transmitter to receiver as the reference in range calculation.]]>
<![CDATA[Digitalization of Human Head Anthropometry Measurement Using Pixels Measurement Method ]]>
<![CDATA[Fandy Surya Pratama]]>;
<![CDATA[Istianah Muslim]]>;
<![CDATA[Muhammad Ihsan Zul]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 3 (2018): September 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.43698
<![CDATA[Head Anthropometry is a part of anthropometry that needed to be measured carefully. It is because human head becomes an important part that necessary to be protected. The protection aims to look after the safety of the human head. Safety factors can be achieved by designing head products. Therefore, head anthropometry data is required to make a product design Currently, data retrieval of head anthropometry is still using several measuring devices such as anthropometers, sliding callipers, spreading callipers, and tape gauges. This measurement method makes the standard deviation become higher and also take a lot of time to capture huge amounts of anthropometry data. However, the problem has been resolved by other study research with building a head dimension measurement system using digital camera. But the system still need the integration with digital camera. This study uses the IP Camera that has been integrated with the system to capture human head from the front and side. The captured image is segmented into several areas based on head dimension. Then, the image is processed using pixel measurement method by performing feature extraction on each head dimension to get the result of head dimension measurement. The result shows that calliper measurement and system measurement against ten of fourteen human head anthropometry dimensions is identical with the best distance between IP Camera and the head as far as 200 cm. This head anthropometry data is expected to make a contribution to Indonesian Ergonomics Society.]]>
<![CDATA[Gateway Redundancy Using Common Address Redundancy Protocol (CARP) ]]>
<![CDATA[Rini Nur]]>;
<![CDATA[Zawiyah Saharuna]]>;
<![CDATA[Irmawati Irmawati]]>;
<![CDATA[Irawan Irawan]]>;
<![CDATA[Reski Wahyuni]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 3 (2018): September 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.43701
<![CDATA[Gateway redundancy can ensure the network availability and reliability in providing a service. One way is to make a backup system on the gateway. This backup system can be applied to the router so that if a failure occurs on the master router its task and function can be transferred to the slave router. The transition process from master router to slave router is known as failover. Common Address Redundancy Protocol (CARP) is one of the redundancy gateway protocols and provides a failover mechanism on the router. Therefore, this study will analyse the CARP protocol implementation in ensuring the network services availability by measuring parameters of throughput, delay, retransmission, and downtime. The results showed that CARP implementation on the network produced the throughput, delay, and retransmission values of 61.7 Mbps, 0.14 ms, and 1.11% when without the link termination and 18 Mbps, 0.53 ms, and 1.58% when with link termination, while the downtime value is 2.91 seconds. The QoS test results show good quality based on ITU-T.]]>
<![CDATA[Blood Transfusion Information System Design for Blood Transfusion Services Unit ]]>
<![CDATA[Yulius Harjoseputro]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 3 (2018): September 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.43702
<![CDATA[Information Systems Development as an information provider, both for the users and outsiders, becomes very important at this time. Through a good data management, it can minimize the need for human labor that is currently being replaced by computers. This paper will discuss a design for a blood transfusion information system because there are several issues found in the Blood Transfusion Service Unit (UPTD), some of which are donor data recording at the Blood Transfusion Service Unit which still use manual recording with a book, donors data stored in the book is not well organized, and there are blood donors who do not obey the blood donor regulation, reminder for blood donor level is 70 days and the screening result. This design can do managements which are needed when people want to donor their blood. The database in this system was designed using S-Designor, while the model design was designed using Rational Rose.]]>
<![CDATA[Testing of Several Paper Types as Insulators for Electric Power Systems ]]>
<![CDATA[Marganda Harliman Siagian]]>;
<![CDATA[T Haryono]]>;
<![CDATA[Bambang Sugiyantoro]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 3 (2018): September 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.43818
<![CDATA[Abstract— This research was based on high voltage equipment failure due to an increase in temperature and humidity on insulating materials. This can cause the power system reliability to decrease. On the other hand, paper is frequently found and used in everyday life. Paper can be categorized as a solid insulator even tough its use in the electric power system can be considered as minimum. This paper aimed to determine electrical insulation characteristics of three types of paper on market and to determine the amount of failed voltage and leakage current of test materials included with other factors such as temperature rise effect as well as humidity conditions in sample testing. The employed test samples were photo paper, duplex paper, and samson craft paper with a length of 7 cm and width of 7 cm with different thickness for each paper type. Tests were carried out with two paper conditions, i.e. paper was soaked in Shell Diala B oil and was not soaked in Shell Diala B oil, so that the significance of the oil on the paper used as an ingredient in testing could be known. The test results showed that temperature and humidity affected dielectric strength magnitude and test sample leakage current value. In addition, it was also found that test sample result impregnated with Shell Diala B had a higher dielectric magnitude compared to the unimpregnated test sample. Test samples impregnated with Shell Diala B oil had a leakage current value which tended to be smaller than the unimpregnated test sample.]]>
<![CDATA[Bandwidth Upgrade in Printed Dipole Antennas Design for LTE Base Station ]]>
<![CDATA[Rahardian Luthfi Prasetyo]]>;
<![CDATA[Iswandi Iswandi]]>;
<![CDATA[Eny Sukani Rahayu]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 4 (2018): December 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.43842
<![CDATA[Abstract—In this study the research design development has been carried out by changing the radiating element field width. Radiating element field extension was administered by simulating it and trying to measure the value one by one in antenna simulator software. The radiating element widening was administered so that the resulting bandwidth could be greater. After changing the width of the field, an element radiating field length adjustment was administered to adjust the operating frequency used in Indonesia. After the design worked at the desired frequency and produced a desired bandwidth, antenna fabrication was administered and its results was tested using Mini VNA Tiny to find out the antenna value if mass produced.]]>
<![CDATA[PTS and AICF Combined PAPR Reduction Techniques in Multi-Antenna OFDM Systems ]]>
<![CDATA[Arifin Arifin]]>;
<![CDATA[Silvi Fitriah Ditasari]]>;
<![CDATA[Yoedy Moegiharto]]>;
<![CDATA[Ida Anisah]]>;
<![CDATA[Hendy Briantoro]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 2, No 4 (2018): December 2018 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.43846
<![CDATA[A high PAPR value is one of important weaknesses in OFDM systems. Several reduction techniques are applied to reduce PAPR including partial transmit sequence (PTS) as well as clipping and filtering (CF). Adaptive iterative clipping and filtering is a development of iterative clipping and filtering techniques. In this paper, a combination of Partial transmits sequence and adaptive iterative clipping filtering (PTS-AICF) techniques on multi-antenna OFDM transmitters was carried out. The simulation results showed that combined technique application had a better performance than non-combined technique (PTS), either for two or four antennas, and also for different sub block numbers. Performance was also influenced by iterations number on AICF section, the more iterations were used, the better the reduction technique performance was because it produced smaller PAPR 0 value.]]>
<![CDATA[Fault Location Algorithm for HVDC Transmission Based on Synchronized Fault Time ]]>
<![CDATA[Kristianto Adi Widiatmoko]]>;
<![CDATA[F. Danang Wijaya]]>;
<![CDATA[Tumiran Tumiran]]>
<![CDATA[ IJITEE (International Journal of Information Technology and Electrical Engineering) Vol 3, No 2 (2019): June 2019 ]]>
Publisher : <![CDATA[Department of Electrical Engineering and Information Technology,Faculty of Engineering UGM ]]>
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DOI: 10.22146/ijitee.44926
<![CDATA[To determine the fault location of the dc line fault in an HVDC transmission system, a new algorithm based on the traveling wave method and learning based method is proposed in this paper. The relationship between the traveling wave time of arrival differences with fault location is presented. The differences in traveling wave time of arrival measured at both ends of transmission line combined with associated fault locations form a fault pattern which is used to perform a simple calculation in order to determine the disturbance location. The fault current for different fault locations is simulated using the electromagnetic transient simulation software EMTDC/PSCAD. Performance of the proposed fault location algorithm is investigated using various fault location and resistance. The impact of data sampling rate also being investigated here. The simulation result shows that the proposed algorithm can reduce the sampling frequency and the number of train feature with the same accuracy.]]>
