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TELKOMNIKA Telecommunication, Computing, Electronics and Control
Direct split-radix algorithm for fast computation of type-II discrete Hartley transform
In this paper, a novel split-radix algorithm for fast calculation the discrete Hartley transform of type-II (DHT-II) is intoduced. The algorithm is established through the decimation in time (DIT) approach, and implemented by splitting a length N of…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A miniaturized printed UWB antenna with dual notching for X-band and aeronautical radio navigation applications
A low cost miniaturized ultra-wideband (UWB) microstrip antenna with dual notched band for X band and aeronautical radio navigation (ARN) is presented in this article. The antenna (19×25 mm2 ) is composed of a half-circular ring as a radiation patch…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Design and software implementation of radio frequency satellite link based on SDR under noisy channels
The satellite communication provide a utilization of radio frequency links. Specific frequencies are dedicated for satellite correspondences through global administrative and coordination procedures which keeps impedance among frameworks. Over…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Vehicle logo recognition using histograms of oriented gradient descriptor and sparsity score
Most of vehicle have the similar structures and designs. It is extremely
complicated and difficult to identify and classify vehicle brands based on their structure and shape. As we require a quick and reliable response, so vehicle logos are an…
complicated and difficult to identify and classify vehicle brands based on their structure and shape. As we require a quick and reliable response, so vehicle logos are an…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Mitigation of non-linear four-wave mixing phenomenon in a fully optical communication system
This paper aims to point out the nonlinear phenomenon occurring in coarse/dense wavelength division multiplex (C/D-WDM) systems. This phenomenon has to be taken into account during the design of the optical network itself, as wavelengths in the…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Vein palm recognition model using fusion of features
One of the most promising mechanisms in the field of security and information safety is authentication based on palm vein. The main reasons that vein palm becomes an authentication method is because of its distinctive privacy, as it is difficult to…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Green Ca2La2BO6.5:Pb2+ phosphor: an innovative solution in enhancing the color quality and luminous flux of WLEDs
Light-emitting diodes devices that embedded with multiple chips (multi-
chip white LEDs (MCW-LEDs)) are an advanced lighitng solution with
much potential for improvement in the lighting industry. However, to further
the applicacations and…
chip white LEDs (MCW-LEDs)) are an advanced lighitng solution with
much potential for improvement in the lighting industry. However, to further
the applicacations and…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
The application of Ca5B2SiO10:Eu3+ and YAl3B4O12:Ce3+,Mn2+ in dual-layer remote phosphor to enhance lumen output and color quality of WLEDs
This study proposes a dual-layer remote phosphor structure, comprised of a
green or a red phosphor layer and a yellow YAG:Ce3+ phosphor layer, to
enhance color rendering index (CRI) and color quality scale (CQS) of white
light-emitting diodes…
green or a red phosphor layer and a yellow YAG:Ce3+ phosphor layer, to
enhance color rendering index (CRI) and color quality scale (CQS) of white
light-emitting diodes…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
A maximum entropy classification scheme for phishing detection using parsimonious features
Over the years, electronic mail (e-mail) has been the target of several
malicious attacks. Phishing is one of the most recognizable forms of
manipulation aimed at e-mail users and usually, employs social engineering
to trick innocent users into…
malicious attacks. Phishing is one of the most recognizable forms of
manipulation aimed at e-mail users and usually, employs social engineering
to trick innocent users into…
TELKOMNIKA Telecommunication, Computing, Electronics and Control
Quantitative approach for reclassification of the spatial cluster of archipelagos in Maluku Province for the basis of forest development
In natural resource management, it is necessary to group regions based on the
similarity of their spatial and non-spatial characteristics, to efficiency and
effectiveness Therefore, this study describes the re-grouping of the twelve
island…
similarity of their spatial and non-spatial characteristics, to efficiency and
effectiveness Therefore, this study describes the re-grouping of the twelve
island…