7104 research outputs found
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The Development Of a Test Software Suite For Flight Control Laws Evaluation of the LSA-02 UAV Technology Demonstrator
No full textXvi, 106 hlm
Comparison of Model Accuracy in Tree Canopy Density Estimation Using Single Band, Vegetation Indices and Forest Canopy Density (FCD) Based on Landsat-8 Imagery (Case Study: Peat Swamp Forest In Riau Province)
No full textIdentification of a tree canopy density information may use remote sensing data such as Landsat-8 imagery. Remote sensing technology such as digital image processing methods could be used to estimate the tree canopy density. The purpose of this research was to compare the results of accuracy of each method for estimating the tree canopy density and determine the best method for mapping the tree canopy density at the site of research. The methods used in the estimation of the tree canopy density are Single band (green, red, and near-infrared band), vegetation indices (NDVI, SAVI, and MSARVI), and Forest Canopy Density (FCD) model. The test results showed that the accuracy of each method: green 73.66%, red 75.63%, near-infrared 75.26%, NDVI 79.42%, SAVI 82.01%, MSARVI 82.65%, and FCD model 81.27%. Comparison of the accuracy results from the seventh methods indicated that MSARVI is the best method to estimate tree canopy density based on Landsat-8 at the site of research. Estimation tree canopy density with MSARVI method showed that the canopy density at the site of research predominantly 60-70% which spread evenly.Hlm. 81-9
Komunikasi Voice Repeater Satelit LAPAN-A2/LAPAN-Orari Untuk Mitigasi Bencana Alam (Communication Voice Repeaater of LAPAN-A2/LAPAN- Orari Satellite For Natural Disaste Mitigation)
No full textSatelit LAPAN-A2/LAPAN - ORARI diluncurkan 29 September 2015, di India jam 11.30 WIB, roket peluncur yang dioperasikan Organisasi Riset Antariksa India (ISRO) tersebut membawa muatan tujuh satelit, termasuk satelit LAPAN-A2/LAPAN-ORARI. Satelit ini membawa muatan utamanya yaitu Digital Space Camera, Analog Video Camera, AIS (Automatic Identifications System), APRS dan VR (Voice Repeater), dengan muatan yang dibawanya tersebut maka misi utama dari satelit LAPAN-A2/LAPAN-ORARI ini antara lain untuk misi surveilanlance (pengamatan), pemantauan kapal laut dan komunikasi amatir, komunikasi amatir ini terdapat 2 muatan yaitu APRS dan VR, Voice Repeater inilah yang menjadi poko bahasan di dalam karya tulis ilmiah ini. Dengan ketinggian sekitar 640 Km di atas permukaan laut dan sudut inklinasi 6 derajat pada orbit ekuator, maka satelit LAPAN-A2/LAPAN-ORARI akan mengorbit dari wilayah Barat bagian Indonesia sampai wilayah timur sebanyak 14 kali dalam sehari, kondisi ini sangat cocok untuk komunikasi (mitigasi bencana) karena frekuensi yang sering dilalui dan wilayah seluruh Indonesia yang tercakup dari Sabang sampai Merauke. Untuk dapat mengakusisi data komunikasi VR (Voice Repeater) ini maka diperlukan rancangbangun alat dan bahan yang akan digunakan di dalam penelitian ini, seperti penggunaan dual band frekuensi radio untuk uplink dan downlink, penggunaan antena UHF dan VHF sampai ke onfigurasi pengaturan tone untuk masuk repeater tsb.Hlm. 17-2
Optimasi Rancang Bangun Parasut Untuk Pesawat LSU-02 NG LD (Optimation Of Parachute Design For LSU-02 NG LD)
No full textDilakukan optimasi rancang bangun parasut untuk pesawat LSU-02 NG LD, yang merupakan pesawat tanpa awak yang sedang dikembangkan LAPAN dimana salah satu misinya adalah sebagai pemantau perahu ilegal penangkap ikan di perairan Indonesia. Pesawat tersebut memiliki berat totalnya sekitar 20 Kg. Dalam melaksanakan misinya diperlukan suatu sistem recovery yang dapat melindungi pesawat dari kerusakan. Recovery tersebut berupa parasut. Metode yang digunakan adalah teoritisuntuk menghitung desain parasut berkapasitas 20 kg. Hasil yang diperoleh adalah desain parasut bentuk hemisphere dengan kecepatan turun 4,5 m/s untuk berat 20 kg dan diameter kanopi yang dihasilkan adalah 3.02 m.Hlm. 125-13
Analisis Kesenjangan Kualitas Layanan Website Lembaga Penerbangan Dan Antariksa Nasional (Gap Analysis Of Website Services Quality In Indonesian National Institute Of Aeronautics And Space)
No full textHlm.95-10
Pembuatan Nitroselulosa Dari Daun Pandan Duri (Pandanus Tectorius) (Preparation Of Nitrocellulose From Pandan Dur Leaves (pandanus Tectorius)
No full textHlm. 257-26
Utilization of AIS (Automatic Identification System) sensor for mobility monitoring of fishing vessel based on PFZ (Potential Fishing Zones) distribution
No full textIndonesia is known worldwide as an archipelagic country with a vast territory and a country consisting of many islands. The length of the coastline reaches about 81,000 km2, so Indonesia is the largest archipelagic country in the world with two thirds of its territory consisting of oceans. One of the efforts that need to be conducted is to improve the economy and accelerate the development of the marine sector. With this policy, the security of marine and marine resource management is very important. Exclusive Economic Zone (EEZ) and continental foundation are vital areas that need to be guarded and guaranteed for the benefit of maritime sovereignty of the Republic of Indonesia.The development of science and technology of remote sensing, LAPAN in cooperation with IPB to make satellite LAPAN / IPB-A3 or A3LISat. These satellites serve as monitoring of paddy field resources. These satellites are orbiting 14 times a day in the territory of Indonesia is equipped with MS (Automatic Identification System) sensor where the sensor is to monitor the mobility of the ship. The MS sensor can provide location coordinate information and temporarily obtain ships vessel information in Indonesian seas. This research tried to utilize the MS sensor and combined with PFZ (Potential Fishing Zone) information result of remote sensing data and analyzes the mobility of fishing boats recorded by A3 satellite whether it is in accordance with the PFZ information extracted from remote sensing satellite LISat data. 1. Introduction [1] National Institute of Aeronautics and Space (LAPAN) is always working to improve product quality and information technology in the field of aviation and space to create an advanced and independent Indonesia. LAPAN effort is to bring technology is satellite LAPAN A2 and A3 (LISAT) LAPAN IPB Satellite. The satellite is fully the result of work of the nation and made in Indonesia. The objective of LAPAN-A2 satellite project is to achieve the design, integration and operation of micro satellite in Indonesia. LAPAN-A2 main mission is Earth Observation (video/matrix RGB camera surveillance). In addition to that the satellite carry AIS (Automatic Identification System) receiver to monitor maritime traffic, a reaction wheel made by LAPAN (LPN-001) for space proofing, and an amateur radio Automatic Packet Reporting System (APRS), as well as amateur radio voice repeater, for Indonesian Amateur Radio Organization (ORARI). [2] The LAPAN-A3/IPB, also referred to as LISat, is a cooperative remote sensing microsatellite project between LAPAN (National Institute of Aeronautics and Space of Indonesia) Jakarta and IPB (Bogor Agricultural University or Institute Pertanian Bogor) located in Bogor, Indonesia.6 hlm
