Spectrum analyzer merupakan alat yang berfungsi untuk mengubah sinyal dalam ranah waktu menjadi spektrum dalam ranah frekuensi. Sebuah alat penganalisa sinyal umumnya memiliki ukuran yang besar sebab terdiri dari banyak komponen seperti mixer, amplifier, local osilator, ADC dll. Selain ukuran, masalah dari spectrum analyzer yang ada di pasaran adalah tingginya utilitas yang disebabkan oleh banyaknya [...]

Continue reading about Rancang Bangun Spectrum Analyzer Menggunakan Fast Fouier Transform Pada Single Board Computer

This research was conducted to develop a method to identify voice utterance. For voice utterance that encounters change caused by aging factor, with the interval of 10 to 25 years. The change of voice utterance influenced by aging factor might be extracted by MFCC (Mel Frequency Cepstrum Coefficient). However, the level of the compatibility of [...]

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Agfianto Eko Putra on October 6th, 2016

Tifani Galuh Utami, Agfianto Eko Putra and Catur Atmaji
Drowsiness has symptoms which are itchy eyes, slow eye blink movement, smaller pupils, yawning and even a body. But the driver ignores it when the body send one of those signals often. The impacts which can occur to the driver, such as make a wrong decision while [...]

Continue reading about EEG-Based Microsleep Detector using Microcontroller

Agfianto Eko Putra on May 2nd, 2016

Sungguh menyenangkan bisa menulis dan berbagi berbagai macam artikel atau paper yang berkaitan dengan Pemrosesan Sinyal Digital atau PSD yang sudah sekian tahun saya geluti, dan sebagaimana saya telah membuat rangkuman artikel tentang mikrokontroler dan PLC, berikut ini adalah rangkuman tentang artikel/paper tentang PSD atau DSP yang telah saya tulis sepanjang tahun 2008 - 2015, [...]

Continue reading about Rangkuman artikel Pemrosesan Sinyal Digital sepanjang 2008-2015

Detection and recognition of object movements in a video is one of the research topics that are popular today. For the purposes of the analysis of the object movements in the video, the direction of movement is the important feature. In this study, we proposed a new method for determining the direction of movement using [...]

Continue reading about Grid-based Histogram of Oriented Optical Flow for analyzing movements on video data

Agfianto Eko Putra on September 7th, 2015

It has been determined the best mother wavelet for stock prediction of SONY 2006 and BNI 2012 based on the Adaplet Method (The Adaptive Filter which is use wavelet as initial coefficients). The Mother Wavelets, which is used, are Coiflet 1-5, Daubechies 1-5, and Symlet 1-5. The prediction analysis includes overshoot, autocorrelation error and data [...]

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Agfianto Eko Putra on August 7th, 2015

Kebutuhan penggunaan korpus yang menggunakan bahasa Indonesia semakin meningkat akan tetapi kebutuhan tersebut belum didukung dengan tersedianya korpus berbahasa Indonesia. Banyak negara sudah memiliki korpus nasional seperti British National Corpus (BNC), American National Corpus (ANC) dan lain sebagainya. Proyek pembuatan Korpus Nasional Bahasa Indonesia (KNBI) sendiri pernah disinggung dalam laporan akhir tahun anggaran 2001 proyek [...]

Continue reading about Desain Pembangunan Korpus Indonesia (Tinjauan Informatika)

This paper discusses the usage of short term energy contour of a speech smoothed by a fuzzy-based method to automatically segment the speech into syllabic units. Two additional procedures, local normalization and postprocessing, are proposed to improve the method. Testing to Indonesian speech dataset shows that local normalization significantly improves the accuracy of fuzzy smoothing. [...]

Continue reading about Automatic Segmentation of Indonesian Speech into Syllables using Fuzzy Smoothed Energy Contour with Local Normalization, Splitting, and Assimilation

Agfianto Eko Putra on November 10th, 2014

Pedestrian detection is one of the important topics in computer vision with key applications in various fields of human life such as intelligent vehicles, surveillance and advanced robotics. In recent years, research related to pedestrian detection commonplace. This paper aims to review the papers related to pedestrian detection in order to provide an overview of [...]

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oleh: Agfianto Eko Putra dan Putrisia Hendra Ningrum Adiaty
Telah dilakukan analisis pengaruh bacaan Al Qur’an pada rekaman EEG menggunakan Transformasi Forier Waktu-Singkat (Short Time Fourier Transform atau STFT). Data yang dianalisis adalah rekaman EEG dari 5 orang laki-laki berumur 20-30 tahun. Setiap subyek mengalami 3 tahap perlakuan, yaitu diam, didengarkan bacaan Al Qur’an dan diam [...]

Continue reading about Analisis EEG Menggunakan Transformasi Fourier Waktu-singkat dan Wavelet Kontinu: Studi Kasus Pengaruh Bacaan al Quran