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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Coplanar waveguide low pass filter based on square complementary split ring resonator with wide rejection
In this paper, we present a novel coplanar waveguide low pass filter (LPF)
structure based on the use of square complementary split ring resonators (CSRRs) in order to enhance the performances of a low pass filter. Especially, to enlarge the…
structure based on the use of square complementary split ring resonators (CSRRs) in order to enhance the performances of a low pass filter. Especially, to enlarge the…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Convolutional neural network for maize leaf disease image classification
This article discusses the maize leaf disease image classification.
The experimental images consist of 200 images with 4 classes: healthy,
cercospora, common rust and northern leaf blight. There are 2 steps: feature extraction and classification.…
The experimental images consist of 200 images with 4 classes: healthy,
cercospora, common rust and northern leaf blight. There are 2 steps: feature extraction and classification.…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Controlling a knee CPM machine using PID and iterative learning control algorithm
A conventional continuous passive motion (CPM) machine uses simple
controller such as On/Off controller. Some better CPMs use PID controller. These kind of CPMs can not distinguish load different due to the different size of the patient leg. This…
controller such as On/Off controller. Some better CPMs use PID controller. These kind of CPMs can not distinguish load different due to the different size of the patient leg. This…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Control system of automatic garage using programmable logic controller
In today’s populated world, urban land availability has become scarce and manual involvement of humans for a proper task makes a work less efficient and less accurate. The garage is one of the workstations which needs to be modernized for enhanced…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Contour evolution method for precise boundary delineation of medical images
Image segmentation is an important precursor to boundary delineation
of medical images. One of the major challenges in applying automatic image segmentation in medical images is the imperfection in the imaging process which can result in…
of medical images. One of the major challenges in applying automatic image segmentation in medical images is the imperfection in the imaging process which can result in…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Compressive sensing-based channel estimation for high mobile systems with delay Doppler effects
In this paper, channel overhead is reduced by exploiting channel sparsity for multiple input multiple output-orthogonal frequency division multiplexing (MIMO-OFDM) system. Where, compressive sensing (CS) based dictionary design algorithms has been…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Complimentary split ring resonator sensor with high sensitivity based on material characterization
A new model of microwave planar sensor established on the complementary split ring resonator (CSRR) as well as an air hole in substrate of the structure is introduced for a precise measurement of materials permittivity. The hole is filled into…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Comparison of search algorithms in Javanese-Indonesian dictionary application
This study aims to compare the performance of Boyer-Moore, Knuth morris pratt, and Horspool algorithms in searching for the meaning of words in the Java-Indonesian dictionary search application in terms of accuracy and processing time. Performance…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Comparison of machine learning performance for earthquake prediction in Indonesia using 30 years historical data
Indonesia resides on most earthquake region with more than 100 active volcanoes, and high number of seismic activities per year. In order to reduce the casualty, some method to predict earthquake have been developed to estimate the seismic movement.…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Comparison between piezoelectric transformer and electromagnetic transformer used in electronic circuitsv
This paper presents study, modeling and simulation of the piezoelectric
material works as transformer (piezoelectric transformer (PT)) in power
electronic circuits, comparisons are made with the regular transformer
(iron core) works in the same…
material works as transformer (piezoelectric transformer (PT)) in power
electronic circuits, comparisons are made with the regular transformer
(iron core) works in the same…