IDENTIFIKASI POSISI UNMANNED AERIAL VEHICLE (UAV) DENGAN PEMODELAN FUSI LARIK SENSOR AUDIO BERBASIS MLP-CNN
Risa Farrid Christianti, Dr. Azhari, M.T.; Dr. Andi Dharmawan, S.Si., M.Cs.
2024 | Disertasi | S3 Ilmu Komputer
The use of illegal UAVs has triggered
the development of UAV detection systems. UAV detection systems have various
sensors as detection tools, with a sensor data fusion method. However, the
fusion of data from several sensors causes some detection errors. These
detection errors are caused by environmental noise around the sensor, resulting
in false alarm information from the detection system. This study develops a
sound-based UAV position identification system by utilizing a sound sensor
array (audio) in an equilateral triangle formation to capture UAV sound and
identify its position.
The sensor nodes in the array record
UAV sound to obtain features from its sound data. UAV sound data is obtained by
taking the average of each sound intensity captured by three INMP441 mic sensor
nodes. Feature extraction is obtained by combining the Log-Mel Spectrogram and
Mel-Frequency Cepstrum Coefficient (MFCC) features. This sound feature
extraction is then trained to build a UAV position identification model using
the MLP-CNN method. Experiments were conducted using 7836 actual data and 3918
secondary data, based on four dataset scenarios and three types of test data
percentages per scenario.
The experimental results show that the UAV
identification model produces a maximum accuracy and recall percentage of
93.06%, where previous research was 83%. In addition, the proposed model is
able to minimize the number of False Negative Rate (FNR) with a maximum
percentage of 0.91%, which shows the system's ability to minimize the
occurrence of False Alarms. This dissertation research highlights essential
findings on how to determine uniform data size and dimensions when combining
two different voice features.
Kata Kunci : Identifikasi posisi UAV/Drone, ekstraksi fitur audio, MLP, CNN, MFCC, Log-Mel Spectrogram