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All Journal Jurnal Teknologi Proceeding of the Electrical Engineering Computer Science and Informatics Conference SENATIK STT Adisutjipto Yogyakarta Angkasa: Jurnal Ilmiah Bidang Teknologi Compiler KACANEGARA Jurnal Pengabdian pada Masyarakat Aviation Electronics, Information Technology, Telecommunications, Electricals, Controls (AVITEC) International Journal of Engineering, Technology and Natural Sciences (IJETS)

Catur Budi Waluyo, Catur Budi

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Author-ID : 537966

Aerospace Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Decision Sciences, Operations Research & Management Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering

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Performance Analysis for MIMO LTE on the High Altitude Platform Station Waluyo, Catur Budi; Astuti, Yenni
Proceeding of the Electrical Engineering Computer Science and Informatics Vol 4: EECSI 2017
Publisher : IAES Indonesia Section

High Altitude Platform Station (HAPs) is a new communications infrastructure that uses air balloon to carry high data rate service and wide bandwidth. One technique to make it happen is Long Term Evolution (LTE), LTE support capacity increasing, expand coverage area, data rate increasing, multi- antenna, and can be integrated with other systems. To improve the performance of LTE in capacity building, coverage area, and data rate, it can use the multi-antenna techniques both on receiver or transmitter or often called multiple input multiple outputs (MIMO). Type of MIMO technique in this paper is spatial Multiplexing. In this study, an estimation that has been used is the Linear Minimum Mean Square Error (LMMSE). Channel estimation is used to find out information about the channel condition between the transmitter and the receiver so that the performance of Bit Error Rate (BER) increase and expand the coverage area of the same BER compared without estimation. The system performed channel estimation has a better performance than the without estimation system with improved SNR of 20dB. Based on the simulation to get the same BER value in the system with channel estimation and without estimation, on the system with estimation it is necessary to lower elevation angle to be 10Â° and still there was improvement of SNR of 3 dB compared to the system without any estimation. With lowered elevation angle from Â 90Â° to 10Â°, the area of coverage was greater becomes 215.77km from the original 0.032km

ANALISIS PENINGKATAN KAPASITAS SISTEM SELULER 4G LTE PADA SISTEM KOMUNIKASI HIGH ALTITUDE PLATFORM STATION Waluyo, Catur Budi; Astuti, Yenni
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 9, No 1 (2017): Mei
Publisher : Sekolah Tinggi Teknologi Adisutjipto

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In the development o f wireless communications, to provide high-speed data services and wide bandwidth become a challenge. One technique to make it happen is by using Multicarrier Orthogonal Frequency Division Multiplexing (OFDM) modulation, where in OFDM, frequency selective fading channel effect will be perceived flat fading by each subcarrier. One communication system that supports OFDM technology is Long Term Evolution (LTE) with various types of bandwidth configurations provided. To improve LTE performance in capacity building, coverage area and data rate, it can use multi antenna technique both in receiver and sender, and integrate with High altitude platform station (HAPs) system. In this study the estimation used is Linear Minimum Mean Square (LMMSE). The relationship o f the elevation angle and the K factor is directly proportional, but the elevation angle value is inversely proportional to the diameter o f the HAPs coverage area. In addition, the more the number o f used antennas, the greater the capacity served. Based on the simulation results, the system with estimation can be used to expand the coverage area to 215.77 km which is from 0.032 km in QPSK modulation, speed 60 kmpj with 2x2 antennas.

ANALISIS MIMO UNTUK PENINGKATAN KAPASITAS SISTEM SELULER 4G LTE PADA SISTEM KOMUNIKASI HIGH ALTITUDE PLATFORM STATION Waluyo, Catur Budi
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 8, No 2 (2016): November
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (204.442 KB)

The development of technology has opened up a new wireless infrastructure to complement the satellite and terrestrial networks. High Altitude Platforms (HAPs) is a communications infrastructure that uses air balloon as a solution between terrestrial and satellite communications systems with medium coverage and low cost o f launching and maintenance. HAPs can be joined with a Long Term Evolution (LTE) technology standardized by the Third Generation Partnership Project (3GPP). LTE uses orthogonal frequency division multiplexing (OFDM) technology for downlink. OFDM technology is a technology that uses multicarrier and bring the data in parallel and the bandwidth is divided into several subcarrier. To improve the performance of LTE in an increase in capacity, coverage, and speed of data, then it can use MIMO techniques. MIMO is a technique using multiple antenna transmitter and receiver antennas that are used to overcome the problem of multipath fading and increase the capacity of the system to be serviced. MIMO support the achievement of high transmission speed. In the simulation, signals generated by the modified jakes model into a ricean channel using the K factor 1.41, 1.99, 2.33, 2.66, 4.61, 6.35, 9.21, 12.15, 16.77 dB with elevation angle of 1 0 Â° to 90Â°. The larger the K factor, the smaller the shift doppler at each speed. Elevation angle have a relationship to the coverage area of HAPs, the smaller the elevation angle of the wider the coverage area, and the higher the position, the wider HAPs coverage area too. In ergodic capacity, the smaller the K factor, the smaller the elevation angle so that the capacity is also greater. System without estimation for the K factor o f 1.41dB and K 9.21dB is necessary for channel estimation and the Bit Error Rate (BER) o f the same system that made channel estimation has a better performance compared with the existing channel without estimation with the SNR improvement o f about 18 dB.

Design and Development of 72.83 MHz Signal Booster Transmitter to increase the remote control coverage Waluyo, Catur Budi
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 10, No 2 (2018): November
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (2003.542 KB)

Pada perkembangan komunikasi wireless, pengendalian suatu pesawat tanpa awak dengan jarak yang jauh merupakan sebuah tantangan. Salah satu teknik untuk mewujudkannya yaitu dengan menggunakan penguat sinyal (signal booster) yang dapat menambah jangkauan dari pengendali pesawat tersebut. Pada pengendali pesawat tanpa awak menggunakan Remote Control (RC).Signal booster yang dioperasikan pada frekuensi 72,83 MHz ini dirancang dengan empat tingkat penguat dengan transistor seri 2SC930, 2SC2053 dan 2SC1971. Signal booster ini dirancang dioperasikan pada kelas A untuk tingkat I, II, III, dan kelas C untuk tingkat IV dengan pangkaian penyesuai impedansi yang digunakan yaitu tipe T dan L. Pada bagian transmiter digunakan antena omnidirectional.Berdasarkan perancangan frekuensi yang digunakan 72.83MHz dengan bandwidth 30kHz. Level puncak amplituodo yang dihasilkan sebesar -27dBm dengan dengan reference level 0 dBm. Hasil pengukuran menunjukkan penguat dapat bekerja pada frekuensi 72,83 MHz dengan daya keluaran 4,5 watt atau gain sebesar 16,58 dB dan mendekati hasil perancangan. Voltage Standing Wave Ratio (VSWR) yang diukur sebesar 1.1 dengan batas minimal VSWR yaitu 1.Kata kunci: Signal booster, Penguat, Remote ControlÂ In the development of wireless communication, the development of Unmanned Aerial Vehicle a long distance is a challenge. One technique to make it happen is by using a signal amplifier that can add facilities to the Unmanned Aerial Vehicle controller using Remote Control (RC).The signal amplifier that operates at 72.83 MHz frequency is designed with four amplifier levels with 2SC930, 2SC2053 and 2SC1971 series transistors. This signal amplifier is designed to operate in class A for levels I, II, III, and class C for level IV with impedance adjustment circuits namely type T and L. On the part of the omnidirectional transmitter antenna.According to the designer, the frequency used is 72.83MHz with a bandwidth of 30kHz. The amplitudo peak level produced is -27dBm with a reference level of 0 dBm. High results indicate the amplifier can work at a frequency of 72.83 MHz with power ranging from 4.5 watts or gain of 16.58 dB and approaching the designers results. Voltage Standing Wave Ratio (VSWR) which measures 1.1 with a minimum VSWR limit of 1.Keywords: signal amplifier, amplifier, remote controlÂ

BER Performance Analysis on AWGN Channel and Fading Channel by Using Diversity Method Waluyo, Catur Budi
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

In the last decades the development of telecommunications technology has increased. In the network access, one of the factors that influences was multipath fading. This study was aimed to simulate the effect of noise on digital communication error detection for various combinations of Eb / No, as well as simulating the effect of various diversity techniques on BER values. In this study the performance of the wireless network communication system was measured in bit error rate (BER) as a function of the ratio of bit energy to noise power. Result of simulation from AWGN channels obtained BER values at Eb / No are 2dB, 4dB, 6dB and 8dB, respectively 4 x 10-2, 1.2 x 10-2, 2.2 x 10-3 and 2 x 10-4. The BER results on fading channels using spatial diversity were better than BER on fading channels without any use of antenna diversity with a difference of 10dB.

PELATIHAN PEMBUATAN RUNNING TEXT BERBASIS MATRIX DISPLAY LED DENGAN MENGGUNAKAN HD-U6A Waluyo, Catur Budi
KACANEGARA Jurnal Pengabdian pada Masyarakat Vol 1, No 1 (2018): Juli
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (117.854 KB)

The rapid development of electronics technology requires the availability of human resources who have sufficient skills. Students as partners in community service, have participated in LED-based running text design training. The main goal in this community service activity is to improve the skills in the field of electronics and human resources. Targets achieved at this stage is to improve the ability to design and make the program of running text based Led matrix display. The enhancement of designing capability is done through Led-based running text training activity in software and hardware. This activity has been able to achieve the expected goals and targets so that partners can make running text with a more affordable cost.

Performance Analysis of Wireless Local Area Network Using Router Tenda N-300 Waluyo, Catur Budi; Erik, Alber; Astuti, Yenni
Compiler Vol 8, No 1 (2019): Mei
Publisher : Sekolah Tinggi Teknologi Adisutjipto Yogyakarta

Today's wireless communication system is a trend for the information society. This is inseparable from communication needs with high mobility and low costs. One of them is the Wireless Local Area network with the IEEE 802.11 standard. Wireless LAN is a communication technology that uses radio wave transmission media by utilizing free space as a transmission line. The transmitted signal is strongly influenced by distance, frequency, transmitter power, receiver sensitivity, and antenna gain. A loss occurs in the process of transmitting data from the sender to the recipien. In order to no loss that occurs, it requires a good performance, and a wide coverage area. The purpose of this study is to analyze the QoS data, calculate the coverage area, receiver power, and compare the results of theoretical calculations with the measurement results. The analysis results show the average throughput for each data rate of 6 Mbps, 15 Mbps and 35 Mbps at 383.8 kbps, 328.2 kbps and 329.8 kbps. The average delay is 5.28 ms, 4.81 ms and 4.66 ms. The average packet loss is 2.83% ms, 2.66% ms and 2.16% ms. The average jitter is 0.036 ms, 0.032 ms and 0.014 ms.

Pendeteksi Tingkat Kebisingan berbasis Internet of Things sebagai Media Kontrol Kenyamanan Ruangan Perpustakaan Hidayat, Arif Dwi; Sudibya, Bambang; Waluyo, Catur Budi
AVITEC Vol 1, No 1 (2019): Agustus 2019
Publisher : Sekolah Tinggi Teknologi Adisutjipto

The library is a place that is used as a study and reading room, so that a comfortable place is needed from disturbances in the library building. Based on the decision of the Minister of Environment in 1996, the standard noise for library environments ranged from 45 to 55 dB. but in fact there is often a commotion caused by visitors. in this study a noise level detection system was created where the noise detection system is expected to be used as a media for comfort control in the library room. The noise level detector uses a sound sensor that is connected to Arduino.The system will be equipped with a warning system in the form of Buzzer and Warning Text sounds that will be displayed on the P10 LED Panel and equipped with Internet of Things technology that allows the supervisor or guard of the library to monitor the noise of the library room real time via Web Server. The test results show that this tool can detect noise levels in the range of at least 41 dB and a maximum of 69 dB with a deviation of 0.6 and an average error of 1.0%. the average sound intensity measured in the library room is 56.24 dB. The average percentage of the success of the system against Buzzer and Warning text warnings is equal to 97.3% and the average percentage of the success of sending data to the web server in the noise level detector is 95%

Analisis Speaker Recognition Menggunakan Metode Dynamic Time Warping (DTW) Berbasis Matlab Prayoga, Noor Fita Indri; Astuti, Yenni; Waluyo, Catur Budi
AVITEC Vol 1, No 1 (2019): Agustus 2019
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Voice is one of way to communicate and express yourself. Speaker recognition is a process carried out by a device to recognize the speaker through the voice. This study designed a speaker recognition system that was able to identify speakers based on what was said by using dynamic time warping (DTW) method based in matlab. To design a speaker recognition system begins with the process of reference data and test data. Both processes have the same process, which starts with sound recording, preprocessing, and feature extraction. In this system, the Fast Fourier Transform (FFT) method is used to extract the features. The results of the feature extraction process from the two data will be compared using the DTW method. Calculations using DTW that produce the smallest value will be determined as the output. The test results show that the system can identify the voice with the best level of recognition accuracy of 90%, and the average recognition accuracy of 80%. The results were obtained from 50 tests, carried out by 5 people consisting of 3 men and 2 women, each speaker said a predetermined word

Rancang Bangun Alat Ukur Jarak dan Peringatan pada Visual Docking Guidance System menggunakan Sensor Lidar Wijanarko, Sidiq; Waluyo, Catur Budi; Dermawan, Denny
AVITEC Vol 1, No 1 (2019): Agustus 2019
Publisher : Sekolah Tinggi Teknologi Adisutjipto

The limited ground marshall, yellow line and others at an airport will affect when parking aircraft. Aviation technology has provided solutions, among others, by attaching to aircraft equipment known as the Visual Docking Guidance System (VDGS), is a tool provided by the airport to help a pilot park his plane without the help of a marshaller to direct the movement of planes to the correct parking. However, not all airports are equipped with sophisticated equipment. So this research aims to create a system that can make it easier for pilots to park aircraft while in Apron. To overcome this problem, a VDGS tool was designed which was designed using a TF Mini Lidar sensor and programmed for aircraft parking systems at pioneering airports. This tool is able to provide information on the distance of the plane as far as 12 meters given a condition that the aircraft will display identification of guidance or collision prevention that will STOP if the aircraft is at a distance of 1-3 meters, and GO identification if the aircraft is at a distance of 4-12 meters so that this tool can serves as a guide to the position of the aircraft when parking right in the designated parking area and prevent aircraft crashes when parking when entering the apron area at the pioneer airport.

Co-Authors Bambang Sudibya, Bambang Benedictus Mardwianta, Benedictus Denny Dermawan Erik, Alber Hidayat, Arif Dwi Iskandar Iskandar Lasmadi Oswald Richfild Tambunan Prayoga, Noor Fita Indri Purnomo, M. Jalu Setiawan, Paulus Wijanarko, Sidiq Yenni Astuti, Yenni

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