Article Per Year (5 Year)
p-Index From 2020 - 2025
2.217
P-Index
This Author published in this journals
All Journal REKA ELKOMIKA Bulletin of Electrical Engineering and Informatics Jurnal Teknik Elektro ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika JETT (Jurnal Elektro dan Telekomunikasi Terapan) JURNAL KAJIAN TEKNIK ELEKTRO Jurnal Tekno Insentif TELKA - Telekomunikasi, Elektronika, Komputasi dan Kontrol Indonesian Journal of Electrical Engineering and Computer Science REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat
LITA LIDYAWATI
Institut Teknologi Nasional (ITENAS) Bandung
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

Published : 49 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 49 Documents
Search

 1   2   3   4   5 
Analisis Kinerja VHF-A/G TOWER/ADC dengan VHF-A/G APP di Bandar Udara Husein Sastranegara Bandung Adisty Hanny Asri; Lita Lidyawati
TELKA - Jurnal Telekomunikasi, Elektronika, Komputasi dan Kontrol Vol 4, No 1 (2018): TELKA
Publisher : Jurusan Teknik Elektro UIN Sunan Gunung Djati Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15575/telka.v4n1.75-84

Abstract

Penelitian ini menjelaskan kinerja komunikasi penerbangan dari perangkat VHF-A/G antara ADC/TOWER (Aerodrome Control) maupun APP (Approach Control Center) dengan pilot di pesawat. Jika terjadi kesalahan dalam pengaturan wilayah pada kedua ruang lingkup udara tersebut, tidak dapat terjadi komunikasi yang diharapkan, pilot dapat kehilangan arah dalam menentukan tujuan. ATC(Air Traffic Control) memandu seluruh kegiatan penerbangan dengan pilot di pesawat dengan bantuan navigator. VHF A/G memiliki batas frekuensi 118-137 MHz, daya yang dipancarkan antara 25 Watt sampai dengan 50 Watt dengan ketinggian 0 – 20000 ft dan jarak jangkauan 0 – 87 Nm. Penggunaan perangkat VHF-A/G untuk melakukan komunikasi dengan baik antara pilot di pesawat dengan ATC diukur dengan indikator level, yang menunjukkan kondisi perangkat VHF-A/G dibagian pengirim dan penerima. Pesawat dengan level readability (keterbacaan) terbaik yaitu 4 dan 5 diantaranya; Citylink Air 888, Garuda, Air Asia, Lion Air 911 dan 903, Auri (Militer), Express Air, Red Cap Air dan Wings Air.
Security System Based on IoT in Karyawangi Parongpong Village: Design Phase Lita Lidyawati; Dani Rusirawan; Lisa Kristiana; Narisha Kalya Mahsa
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 2, No 1 (2021): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v2i1.33-40

Abstract

Security is always an issue both in individuals and communal attentions. Any forms of threats and crimes that occur in the village area of Karyawangi Parongpong, such as motor vehicle theft, violence, drug abuse, gambling, and others are caused by a lack of supervision from local authorities. The limitation of surveillance distance is one of the problems. Thus, an effective and appropriate security system in a place is indispensable. In this paper, the design of the security system using IoT modules and ESP32 Camera, will be elaborated for karyawangi Parongpong's village. The system secures a village environment by detecting an intruder on the road, triggering Passive Infra Red (PIR) sensor, capturing all activities with ESP32 camera, and then sending data to a smart mobile phone through with Telegram application. These service activities were aimed at the improvement of security systems and increase knowledge of technology advances for rural communities in the Karyawangi Village environment, especially in security systems based on IoT.
Remotely Garden Irrigation for Residential Area Based on Internet of Things (IoT) Lita Lidyawati; Lisa Kristiana; Arsyad Ramadhan Darlis; Lucia Jambola; Ratna Susana
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 1, No 1 (2020): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v1i1.35-44

Abstract

Activities such as planting and gardening become one of prominent hobbies. An issue of having such well grown plants is the impractical and unachieavable task to monitor 24 hours a day, thus we need a smart gardening system that can monitor the garden on demand. One of the problems in residential gardening systems is how to water the plants while the owner is not at home. Some of people have an adequate knowledge of using IoT to make their life easier. This paper proposes a simple automatic gardening system in watering several plants as programmed. In addition, this system allows human’s manual intervention either locally or remotely via Internet, to control a water pump. To build this smart gardening system, we use Xiaomi home application from Google Play. In this application, we can set the program to water the plants daily with definite time periodic independently.
Security and Watering System Counseling Based on Internet of Things (IoT) in Pondok Hijau Indah Residential Area Lita Lidyawati; Lucia Jambola; Arsyad Ramadhan Darlis; Lisa Kristiana; Ratna Susana
REKA ELKOMIKA: Jurnal Pengabdian kepada Masyarakat Vol 1, No 2 (2020): REKA ELKOMIKA
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/rekaelkomika.v1i2.65-74

Abstract

Nowadays, security and gardening systems in densely populated residential areas are generally done manually. The security system in housing sometimes places security posts at street corners that are some distance from citizen’s homes thus they cannot be monitored at all times. Whereas other problem of watering system in citizen’s homes, someone has to water the plants one by one that it is not efficient in  energy, time and water availability thus that it can reduce the quality of the plants. Internet of Things (IoT) is a concept and method for remote control, monitoring, and various tasks. IoT is connected to a network that it can be accessed anywhere which can make things easier. IoT can be used to solve various problems. One of them is security issues and gardening activities. By using smart home technology, the security system is carried out by placing CCTV (Closed Circuit Television) which can be accessed by the home owner, anytime and anywhere the home owner is located. On the other hand, gardening is one of the most popular hobbies. In this field, IoT can be used to monitor and regulate various things to support gardening activities. In this community service activity, we are proposed a simple automatic gardening system for watering some plants programmatically in Pondok Hijau Indah residence. The system also allows manual human intervention either locally or remotely via the internet to control CCTV and water pumps. To build this smart Home system we will use the Xiaomi Home application from Google Play. In this application, we can set a program to control CCTV and water the plants every day at a certain time periodically, in this case, we set every 7 hours to watering the plants. 
IOT BERBASIS SISTEM SMART HOME MENGGUNAKAN NODEMCU V3 Muhammad Aluh; Lita Lidyawati
Jurnal Kajian Teknik Elektro Vol 3, No 2 (2018): JKTE Vol 3 No 2 (September-Februari 2019)
Publisher : Universitas 17 Agustus 1945 Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1537.684 KB)

Abstract

Smart Home is a combination of technology and service in the home environment such as activating electronic equipment that is inside the house with the aim of improving efficiency and comfort. In Smart Home, some home electronic devices or equipment that can be controlled via a smartphone. This research aims to design and make smart home based IoT systems. research methodology using control system development methodology. In its implementation using the NodeMCU V3 module as a link to the internet via wifi, the relay module will be connected to an electronic device and the blynk application via a smartphone that will control all of that. Research results, in access can be activated and turned off via smartphone. The test results, connecting NodeMCU V3 to the internet can be known by looking at the serial monitor in the software used, then the electronic device can be activated and turned off via a smartphone.
Optical repeater for indoor visible light communication using amplify-forward method Arsyad Ramadhan Darlis; Lucia Jambola; Lita Lidyawati; Adisty Hanny Asri
Indonesian Journal of Electrical Engineering and Computer Science Vol 20, No 3: December 2020
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijeecs.v20.i3.pp1351-1360

Abstract

In this paper, the implementation of an optical repeater for indoor visible light communication using the amplify-forward method was proposed. In indoor, visible light communication (VLC) can occur by transmitting information signals from lamps as a VLC transmitter toward the VLC receiver as line-of-sight (LOS) that is located with only a few meters. In the non-los (NLOS) communication, the signal will be attenuated, so it needs to amplify to improve good signal quality in a VLC receiver. The optical repeater could be used to improve the signal quality that attenuating due to distance. The audio signal was generated and sent using VLC Transmitter toward the light emitting diode (LED). Then, the electrical signal was converted to become visible light, and it was amplified using an optical amplifier with an amplify-forward method. The signal in the form of visible light that had been amplified would be received by the photodiode (PD), and the VLC receiver processed it. The measurement results showed the system that used the optical repeater could improving the distance until 9.5 m with frequency 6000 Hz, where the best signal quality at a frequency of 3000 Hz. The measurement result showed that the use of repeater components with the amplify-forward method for VLC systems, especially in the room, can increase the range until 4.5 m compare without an optical repeater. This result exceeds the minimum distance of an indoor visible light communication system, with an average distance of the roof to the floor is 3.5 m.
PEMODELAN PRODUKSI ENERGI PEMBANGKIT LISTRIK TENAGA SURYA 1000 WP DENGAN ALGORITMA NAIVE BAYES Arif Fahrizal; Dani Rusirawan; Lita Lidyawati
Jurnal Tekno Insentif Vol 16 No 2 (2022): Jurnal Tekno Insentif
Publisher : Lembaga Layanan Pendidikan Tinggi Wilayah IV

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36787/jti.v16i2.864

Abstract

Abstrak Dalam penelitian ini, akan diuraikan pemodelan karakteristik produksi energi Pembangkit Listrik Tenaga Surya (PLTS) 1000 Watt peak (Wp) dalam periode Juni 2020-Desember 2021, dengan menggunakan salah satu algoritma machine learning, yaitu Naive Bayes. Fitur yang digunakan dalam pemodelan adalah radiasi matahari, temperatur & pancaran sinar, yang dibagi menjadi lima label kelas yaitu Very low, Low, Medium, High, dan Very High. Perbandingan data latih dan uji dibagi menjadi 3 skenario, yaitu 90%:10%, 80%:20%, 75%:25%. Hasil pemodelan memperlihatkan bahwa skenario perbandingan 75%:25% memiliki nilai mean absolute error (MAE), root mean squared error (RMSE) dan mean absolute percentage error (MAPE) terkecil (dibanding skenario lain), masing-masing sebesar 0,14; 0,38; dan 6,52, yang artinya skenario ini memiliki akurasi relative lebih tinggi (dibanding skenario lain), jika dibandingkan terhadap karakteristik produksi energi referensi. Abstract In this research, the modeling of energy production characteristics of 1000 Watt peak of the Solar Power Plant (SPP) will be elaborated for the period of June 2020-December 2021, using one of the machine learning algorithms, i.e., Naïve Bayes. The features used are solar radiation, temperature & light beam. Each of feature is divided into five class labels, namely Very low, Low, Medium, High, and Very High. The comparison of training and test data is divided into 3 scenarios i.e., 90%: 10%, 80%: 20%, 75%: 25%. Based on modeling, it is found that a 75%;25% scenario shows the smallest of MAE, RMSE, and MAPE, i.e., 0.14, 0.38, and 6.52, respectively. It means that this scenario has the highest accuracy in this modeling (if compared to the actual's energy production characteristics).
Implementasi Filter Finite Impulse Response (FIR) Window Hamming dan Blackman menggunakan DSK TMS320C6713 LIDYAWATI, LITA; RAHMIATI, PAULINE; SUNARTI, YULI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 4, No 1: Published January - June 2016
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v4i1.16

Abstract

ABSTRAKFilter didefinisikan sebagai proses atau rangkaian yang melewatkan pita frekuensi tertentu yang diinginkan dan meredam pita frekuensi lainnya. Salah satu metode perancangan filter digital Finite Impulse Response (FIR) adalah metode windowing. Dalam penelitian ini digunakan jenis window Hamming dan Blackman. Simulasi dilakukan dengan menggunakan software Matlab dengan memasukan frekuensi passband, frekuensi stopband, ripple passband, dan stopband attenuation. Dengan frekuensi sampling sebesar 15000 Hz, frekuensi passband sebesar 3000 Hz, frekuensi stopband sebesar 5000 Hz. Setelah simulasi dilakukan implementasi filter dengan parameter yang sama menggunakan DSK TMS 320C6713 dengan bantuan software CCS. Simulasi dan implementasi dilakukan pada semua band frekuensi. Hasil pengujian terhadap implementasi filter adalah respon magnitude, frekuensi cut-off, bandwidth, dan faktor kualitas dengan hasil simulasi tidak menunjukkan perbedaan yang signifikan.Kata kunci: filter digital, windowing, Hamming, Blackman, frekuensi cut-off.ABSTRACTFilter is defined as a process or series that skip certain desired frequency band and other frequency bands drown. One method of designing a digital filter Finite Impulse Response (FIR) is a windowing method. This study used the type of window Hamming and Blackman. Simulations performed using Matlab software by inserting a frequency passband, stopband frequency, passband ripple, and stopband attenuation. With a sampling frequency of 15,000 Hz, a frequency of 3000 Hz passband, stopband frequency of 5000 Hz. After the simulation is completed, implementation of the filter with the same parameters using TMS 320C6713 DSK with the help of software CCS. Simulation and implmentasi performed on all frequency bands. The test results of the implementation of the filter is the Magnitude response, the cut-off frequency, bandwidth, and quality factor with simulation results showed no significant difference.Keywords: digital filter, windowing, Hamming, Blackman, cut-off frequency.
Antena J-Pole Berbahan Aluminium Rod pada Komunikasi Handy Talky ARYANTA, DWI; LIDYAWATI, LITA; AKMAL, MULIA EZA
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 6, No 3: Published September 2018
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v6i3.367

Abstract

ABSTRAKPerangkat komunikasi Handy Talky (HT) yang ada saat ini masih relatif banyak dipergunakan mengingat nilai ekonomis yang dimilikinya. Pada beberapa tipe, perangkat ini memiliki kekurangan dalam hal jangkauan. Penelitian ini bertujuan untuk merealisasikan dua buah antena J-Pole menggunakan bahan aluminium rod yang diaplikasi pada perangkat HT pada frekuensi 144 MHz. Hasil realisasi kedua antena diperoleh gain antena 1 dan 2 masing-masing sebesar 6,23 dB dan 6,34 dB, dimana VSWR didapatkan sebesar 1,27 dan 1,16. Nilai Return Loss pada antena 1 dan 2 masing-masing sebesar -18,58 dB dan -22,48 dB. Antena J-Pole yang diaplikasikan dapat menambah jarak jangkau HT yang digunakan sejauh 2,46 km dari penggunaan antena existing.Kata kunci: J-Pole, Handy Talky, VSWR, Gain, Omnidirectional. ABSTRACTHandy Talky (HT) communication devices that exist today are still relatively widely used considering the economic value it has. In some types, this device has a deficiency in terms of range. This study aims to realize two J-Pole antennas using aluminum rod material applied to HT devices at a frequency of 144 MHz. The second antenna gain result obtained antenna gain 1 and 2 respectively equal to 6.23 dB and 6.34 dB, where VSWR got equal to 1.27 and 1.16. Return Loss values on antennas 1 and 2 are respectively -18.58 dB and -22.48 dB. The applied J-Pole antenna can increase the range of HT used as far as 2.46 km from the use of existing antenna.Keywords: J-Pole, Handy Talky, VSWR, Gain, Omnidirectional
Sistem Komunikasi Suara Bawah Air dengan Metoda Simplex menggunakan Visible Light Communication (VLC) JAMBOLA, LUCIA; DARLIS, ARSYAD RAMADHAN; LIDYAWATI, LITA; HUSAENI, DZIKRI FACHRI
ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Vol 7, No 2: Published May 2019
Publisher : Institut Teknologi Nasional, Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26760/elkomika.v7i2.253

Abstract

ABSTRAKSistem komunikasi suara bawah air telah dikenal sejak lama, diantaranya sonar dan akustik. Seiring perkembangan zaman dan kemajuan teknologi, kini hadir komunikasi dengan media transmisi cahaya tampak yaitu Visible Light Communication (VLC) yang dapat diterapkan pada komunikasi bawah air. Pada penelitian ini telah dilakukan komunikasi suara bawah air (simplex) menggunakan VLC, dengan media akuarium berisi air dan beberapa pengujian diantaranya menggunakan color filter, didapat hasil pengujian terbaik yaitu tegangan 4,4 Vpp dan frekuensi 3,003 kHz untuk color filter yellow, pengujian menggunakan lensa didapat hasil pengujian terbaik yaitu tegangan 4,4 Vp-p dan frekuensi 3,051 kHz untuk lensa (+50), dan pengujian terakhir menggunakan lampu UV didapat hasil pengujian terbaik dengan tegangan 4,4 Vp-p dan frekuensi 3,010 kHz. Implementasi sistem VLC ini menunjukkan hasil yang baik dan layak untuk diterapkan pada komunikasi suara bawah air (simplex).Kata kunci: VLC, Komunikasi Suara Bawah Air, Simplex. ABSTRACTUnderwater voice communication systems have been known for a long time, including sonar and acoustics. Along with the development and advancement of technology, now there is communication with visible light transmission media, namely Visible Light Communication (VLC) which can be applied to underwater communication. Under this study underwater voice communication (simplex) has been carried out using VLC, with aquarium media containing water and several tests including using a color filter, the best test results obtained are voltage 4.4 Vp-p and frequency 3.003 kHz for yellow color filter, testing using the lens obtained the best test results namely voltage 4.4 Vp-p and frequency 3.051 kHz for lenses (+50), and the last test using UV lights obtained the best test results with a voltage of 4.4 Vp-p and a frequency of 3.010 kHz. The implementation of the VLC system shows good and feasible results to be applied to underwater voice communication (simplex).Keywords: VLC, Underwater Voice Communication, Simplex.
Co-Authors Adisty Hanny Asri Adisty Hanny Asri AGITA SYAIMI PUTRI UTAMI AKMAL, MULIA EZA Alfin Fernando Tamba ANITA PURNAMA SARI ARCHANDHIKA, HEGAR REFALDY Arif Fahrizal Arsyad Ramadhan Darlis ARSYAD RAMADHAN DARLIS BIMA BIMA, BIMA BUDI PRATAMA, BUDI DANI RUSIRAWAN DECY NATALIANA Deden Nur Rokhman DEWI, IRMA AMELIA DWI ARYANTA EDI YUSUF, EDI Fauziah, Dini FAZAR GUNTARA PRAJA GEMA ALFARISI DERI HEIFAT AHMAD ABDULLAH HUSAENI, DZIKRI FACHRI JAPE ATHAN BANGUN Kania Sawitri KRISTIANA, LISA Latif, Mochamad Fazri Abdul LUCIA JAMBOLA M.ICHWAN M.ICHWAN Muhammad Aluh Narisha Kalya Mahsa NURUL WULANDARI PAULINE RAHMIATI, PAULINE pribadi, aditya arif RAISA MUKHTARETA Ramdhani, Teguh RATNA SUSANA Rea Ramada Jayandanu REGINA RIYANTIKA ROVAN NUGRAHA RUSTAMAJI RUSTAMAJI SABAT ANWARI Satria Ilma Romadoni Siswanto, Wahyu Dwi TUTUN JUHANA Yanuary, Tio Hanif Yuli Sunarti ZUL RAMADHAN