{"title":"A Reflectarray Antenna Based on Diamond-Ring Slotted Elements With Enhanced Reflection Phase","authors":"B. Satriyotomo, S. Pyo","doi":"10.1109/ICARES56907.2022.9993535","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993535","url":null,"abstract":"This paper presents the design and investigation of a reflectarray antenna with diamond-ring slotted elements operating at a frequency of 20 GHz. The diamond-ring slot applied to the design can extend the reflection phase range of the unit-cell. The reflectarray antenna has a dimension of 190 × 190 mm2 with a total of 505 elements in a circular aperture and a focus of 150 mm. A rectangular horn antenna with a symmetric beamwidth of 35° and 14.4 dBi gain is proposed as the antenna feed. The designed antenna has improved gain with a value of 27.2 dBi directed to $bm{ (theta = 0^{circ}, phi=0^{circ})}$ and a 5.8° beamwidth.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"296 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123111584","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Utama, Chusnul Tri Judianto, Suraduita Mupasanta, Wakhid Abdurrokhman, Nur Salma Yusuf Hasanah, A. A. Qadir, Khairunnisa, P. R. Hakim
{"title":"Outlier Rejection on Payload Metadata System Time of LAPAN-A3 Satellite using Sequential RANSAC","authors":"S. Utama, Chusnul Tri Judianto, Suraduita Mupasanta, Wakhid Abdurrokhman, Nur Salma Yusuf Hasanah, A. A. Qadir, Khairunnisa, P. R. Hakim","doi":"10.1109/ICARES56907.2022.9993607","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993607","url":null,"abstract":"System time is one of the most pivotal metadata of a satellite payload, thus having outliers on the system time can lead to failure in the data processing. Therefore, an outlier rejection method is crucial to cleanse the metadata before partaking in further processes. In this research, three variants of the random sampling consensus (RANSAC) algorithm are selected to deal with outliers in the system time of the LAPAN-A3 satellite. Default RANSAC, RANSAC with least square, and RANSAC with median value are chosen to be tested to the synthetic data with a variation on the outlier ratio and standard deviation. RANSAC with the least square variant shows superiority in precision, recall, and robustness. Furthermore, a sequential RANSAC is built to deal with multiple structures on the metadata of LAPAN-A3. The method can estimate the outlier with a precision of 0.9 and a recall of 0.6.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"279 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123267165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
S. Ramayanti, P. Budiantoro, Ahmad Fauzi, Ery Fitrianingsih, E. N. Nasser
{"title":"Comparative Study of Deployable Satellite Solar Panel Structure between Carbon Fiber Reinforced Polymer and Al-7075 Honeycomb","authors":"S. Ramayanti, P. Budiantoro, Ahmad Fauzi, Ery Fitrianingsih, E. N. Nasser","doi":"10.1109/ICARES56907.2022.9993517","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993517","url":null,"abstract":"Research Center for Satellite Technology currently develops satellite constellations using deployable solar panels. This satellite will orbit in an equatorial Low Earth Orbit at an altitude of 600 km and inclination of 0°. The objective of this research is to compare the structural performance of Carbon fiber reinforced polymer (CFRP) and Aluminum honeycomb deployable solar panel structures with mass reduction consideration during launch phase. This method starts by determining the requirements from the launcher and then designing the structure base on HDRM location and face material. The design is divided into two types: HDRM on the side and in the center of the panel. Each design employs CFRP and Al-7075 as the face material. Meanwhile, the design uses Al-5056 as the core material. Modal analysis and static analysis are performed to analyze the structural behavior of solar panel structures. The static analysis used in this work is a combination of quasi-static and random load. The obtained result shows the solar panel with CFRP material where HDRM on the side panel provides the best option compared to other designs. The excellent margin of safety (MOS) over the allowable stress on CFRP as face material and Al-5056 as the core material of the solar panel structure can validate the adequacy of this material. The choice of CFRP materials can also reduce the total mass of solar panel structures.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128767862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nirmawana Simarmata, K. Wikantika, S. Darmawan, A. B. Harto, Aki Asmoro Santo
{"title":"Evaluation of Multispectral Image for Mangrove Health Assessment Using Sentinel 2A and Field Spectrometer Data","authors":"Nirmawana Simarmata, K. Wikantika, S. Darmawan, A. B. Harto, Aki Asmoro Santo","doi":"10.1109/ICARES56907.2022.9993534","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993534","url":null,"abstract":"Mangrove health is one of the parameters to show the quality of mangrove forest ecosystems that can be compared with other locations. To preserve mangroves as an ecosystem with high services, it is necessary to map the health of mangroves. Ketapang Subdistrict, South Lampung Regency is one of the areas where the conversion of land into a pond area has a significant impact on mangrove damage. This study aims to identify mangrove health based on the vegetation index from Sentinel 2A imagery and spectral measurements in the field. The research methods used are supervised classification with support vector machine algorithm, GNDVI, SAVI and TSAVI, and direct measurement of object reflection. the result of the GNDVI, SAVI, and TSAVI correlation coefficient $(mathrm{R}^{2})$ values are 0.71, 0.6, and 0.66 respectively. If the value of the correlation coefficient is in the range of 0.50-0.70, it can be said that the relationship is very strong between parameters. Mangrove health classification is classified into 3 classes: poor, moderate and healthy. The mangrove health area obtained ranged from poor class 17.0 ha with an area percentage of 7.13%, medium class 23.78 ha with a percentage of 9.98% and healthy class 197.63 ha with a percentage of 82.89%. The total area of mangroves is about 238.42 ha. Based on 30 sample points of field observation, the results of the accuracy test show an overall accuracy of 86.67%.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130850834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Fareisya Zulaikha Mohd Sani, Elya Mohd Noor, F.R. Hashim, S. N. Makhtar
{"title":"Wind Estimator Using Attitude Measurement From Quadrotor Flight Under Wind Disturbance","authors":"Fareisya Zulaikha Mohd Sani, Elya Mohd Noor, F.R. Hashim, S. N. Makhtar","doi":"10.1109/ICARES56907.2022.9993499","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993499","url":null,"abstract":"There is a limitation to flying a quadrotor in the lowest layer of the atmosphere, the troposphere level. Thus, it is difficult to evaluate the performance of the quadrotor under the presence of wind. The main objective of this project is to validate the quadrotor control performance under the proposed wind prediction model. A wind estimator model was designed using neural network models to validate the quadrotor model with a proportional integral derivative(PID) controller, flying under external disturbance. The performance of the wind estimator model was evaluated based on error measurement. Thus, the actual flight data and the estimated data were compared and evaluated to obtain the best performance for the quadrotor flight control. The simulation results of the wind estimator signified that the model has been successfully developed according to the set parameters. Thus, the outcome of this project shows that neural network fitting can be embedded inside the quadrotor and work together with the existing PID controller to control the quadrotor in a robust environment.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127846551","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Joshua Levin Kurniawan, Bevan Bintang Setiawarman, Dhafin Anshar Prisetya, Rafael Aditya Cahyo W, Y. I. Jenie
{"title":"Analysis and Simulation of Axial Flux Permanent Magnet Synchronous Motor for Hybrid UAV Propulsion","authors":"Joshua Levin Kurniawan, Bevan Bintang Setiawarman, Dhafin Anshar Prisetya, Rafael Aditya Cahyo W, Y. I. Jenie","doi":"10.1109/ICARES56907.2022.9993611","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993611","url":null,"abstract":"In recent years, a wide range of unmanned aerial vehicles (UAVs) applications has gained popularity. Due to the size of battery pack limitation, engine-propelled UAVs have become an appealing alternative as they possess high endurance (due to their high-density fuel). However, most modern UAVs include electronic instruments. In the operation, the UAV still requires a battery as the primary electrical power source. Various efforts have been made to connect the electronic system with the vehicle's prime mover system, one of which is by using a hybrid propulsion system. In this paper, a hybrid propulsion system based on a 2-stroke internal combustion engine (ICE) along with Aksantara's axial flux Permanent Magnet Synchronous Motor (PMSM) that acts as a generator and internal engine starter is proposed. This design will implement axial flux configuration PMSM to enhance the endurance and range of the proposed hybrid propulsion system. To obtain the hybrid propulsion performance result, the axial flux PMSM is numerically calculated using Finite Element Method (FEM) by utilizing Ansys Maxwell. The overall in-flight propulsion system performance will be evaluated using Simulink software. From the simulation, the implementation of the proposed axial flux PMSM hybrid propulsion system will show benefits in terms of endurance and range compared to other propulsion systems.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126276000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nurul Muhtadin, Nayla Najati, R. Madina, Maulana Ali Arifin, Nurul Fadilah, Nova Maras Nurul Khamsah, Aulia Haque Qonita, Anshari Akbar, Rifki Ardinal
{"title":"Doppler Analysis for the S-AIS Receiver for the Indonesian LEO Constellation","authors":"Nurul Muhtadin, Nayla Najati, R. Madina, Maulana Ali Arifin, Nurul Fadilah, Nova Maras Nurul Khamsah, Aulia Haque Qonita, Anshari Akbar, Rifki Ardinal","doi":"10.1109/ICARES56907.2022.9992305","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9992305","url":null,"abstract":"The S-AIS (Space-based Automatic Identification System) receiver is one of the payloads to be carried by the NEI (Nusantara Equatorial Internet of Things) project for the maritime monitoring mission. The project will ensure sustainable maritime monitoring in Indonesia. The performance of the developed S-AIS receiver needs to be well characterized, in particular Doppler shift that occurs due to satellite motion in orbit. Calculation of Doppler shift is carried out to obtain minimum requirements that the developed S-AIS receiver must achieve. This value needs to be verified by testing the device through different scenarios. The test was carried out in the laboratory. The device was connected with a cable to an AIS transmitter. This test configuration is conducted to reduce interference so that it is obtained accurate results. Based on the calculations, the required Doppler shift value is around 3.7 kHz, while the performance of the S-AIS Receiver can receive AIS data with a Doppler shift value of up to ±5 kHz. The developed S-AIS RX can still detect AIS signals down to ±10 kHz of the fundamental frequency.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125327020","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"U-Net Based Water Region Segmentation for LAPAN-A2 MSI","authors":"Silmie Vidiya Fani, Kamirul, Astriany Noer, Stevry Yushady Ch Bissa","doi":"10.1109/ICARES56907.2022.9993477","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993477","url":null,"abstract":"In this work, we analyzed the performance of a deep learning-based segmentation method in extracting water regions from multispectral imageries (MSI) taken by LAPANA2 microsatellite. The interested water regions include open seas and the river as well as their branches. The capability of detecting and segmenting the water component on LAPAN-A2 MSI is important as the satellite was dedicated to support maritime surveillance missions on Indonesian waters. Therefore, this capability will help future water object detection to encapsulate its region of interest, i.e., water. The segmentation has been performed by employing a state-of-the-art deep learning-based method, U-Net, using 696 training images. This method is considered due to its capability to provide promising accuracy without requiring an extremely extensive amount of training dataset. Based on our experiment, the trained U-Net has shown a satisfying result with an accuracy of 89.13% as measured using Intersection over Union (IoU) metric.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"177 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133497995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Combining connectivity modeling with remote sensing to elucidate flow and sediment connectivity of two adjacent subbasins in the Lake Tana Basin Ethiopia","authors":"Anik Juli Dwi Astuti, S. Dondeyne, J. Nyssen","doi":"10.1109/ICARES56907.2022.9993472","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993472","url":null,"abstract":"Sediment connectivity is the ability of a system to transfer water and sediment within a catchment. It is controlled by driving forces (rainfall and land cover), static aspects (geomorphology and soil), and dynamic aspects (surface runoff) of the catchment. The connectivity index is commonly used to measure sediment connectivity, even though it usually only looks at structural landscape features. The aims of this study are 1) to assess flow and sediment connectivity using the Borselli's index (IC) and the modified index of connectivity (MIC) and 2) to compare flow and sediment connectivity between two catchments in the Lake Tana Basin. The modified connectivity index was calculated by adding soil erodibility, rainfall erosivity, roughness index, and surface runoff. Remote sensing data were used to estimate the driving forces of connectivity, structural aspects of connectivity, and also functional aspects of connectivity. Landsat 8 OLI was used to identify the land cover, and remotely sensed rainfall estimates (TAMSAT) were used to quantify the precipitation in the catchments, while the Shuttle Radar Topographic Mission (SRTM) was used to identify slope gradient and roughness index. The IC values were higher than the MIC values, whereas the MIC values have a wider range of values compared to the IC values. The MIC can represent functional connectivity within the catchment. The IC and MIC values in the Gumara were higher than those in the Rib.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"131 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134218559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Agung Wahyudiono, Ega Asti Anggari, A. Herawan, Patria Rachman Hakim, A. Hadi Syafrudin, Elvira Rachim
{"title":"Pan-Sharpening Performance Comparison for Land Use Classification Application, and Its Effect on LISA LAPAN-A3 in Accuracy Improvement","authors":"Agung Wahyudiono, Ega Asti Anggari, A. Herawan, Patria Rachman Hakim, A. Hadi Syafrudin, Elvira Rachim","doi":"10.1109/ICARES56907.2022.9993548","DOIUrl":"https://doi.org/10.1109/ICARES56907.2022.9993548","url":null,"abstract":"Pan-sharpening is one data fusion application that aims to increase the spatial resolution of the multi-spectral image by merging a low-resolution multispectral image with a high-resolution panchromatic image. This process is commonly used to increase the quality of images in the application of land use classification. This research aims to see and learn about the performance of the pan-sharpening method in terms of Land Use Classifications. 5 different methods are compared to see each performance in classification. Moreover, not only using a single-platform data, which is multi-spectral (MS) and panchromatic (Pan) image from Landsat 8, this research also tries to fuse 2 data from a different platform, which are MS from LISA LAPAN-A3 and Pan from Landsat 8. It found that each pan-sharpening method has a different result in terms of accuracy when applied to single-platform data and cross-platform data, nevertheless, some improvements in accuracy were slightly found in pan-sharpened LISA's product to a 9.31% increase.","PeriodicalId":252801,"journal":{"name":"2022 IEEE International Conference on Aerospace Electronics and Remote Sensing Technology (ICARES)","volume":"6 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-11-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117158161","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}