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ThesisOpen AccessMetadata saja

ESTIMATOR APES (AMPLITUDE AND PHASE ESTIMATION) PADA SISTEM RADAR OEST (OVERLAPPED EQUAL SUBARRAY TRANSMIT) UNTUK MENGIDENTIFIKASI PARAMETER ARAH KEDATANGAN

SULTAN MAHDI

2022•Skripsi, Thesis, Disertasi, dan Tugas Akhir

.Radar overlapped equal subarray transmit (OEST) merupakan gabungan atau kombinasi dari kedua jenis radar multi antena yaitu radar Phased Array (PA) dan radar Multiple-Input Multiple-Output (MIMO). Metode hibrid pada radar PA dan radar MIMO atau dikenal PMIMO telah dikembangkan untuk menggabungkan kelebihan-kelebihan dari kedua teknik radar tersebut. Pada penelitian ini diusulkan perluasan pada pendekatan estimasi parameter yaitu amplitudo and phase estimation (APES) dimana pendekatan ini memberikan perbaikan resolusi terhadap estimasi dari amplitudo dan sudut kedatangan sinyal pantulan target pada radar dibanding metode estimasi konvensional seperti least squres (LS). Formulasinya didasarkan pada parameter yang diuji yaitu arah kedatangan sinyal Direction of Arrival (DoA) dan Radar Cross section (RCS). Kemudian dilakukan evaluasi pada kinerja metode APES dari radar OEST dimana radar dapat mendeteksi target dengan baik ketika jumlah subarray lebih besar dari jumlah target, kemudian akurasi DoA dan RCS dari metode APES dan LS dimana metode APES lebih akurat dibanding LS, serta uji resolusi sudut antar dua target dimana metode APES mampu membedakan dua target dengan resolusi sudut sebesar 2° sedangkan metode LS hanya membaca satu target.

Radar overlapped equal subarray transmit (OEST)radar Phased Array (PA)radar Multiple-Input Multiple-Output (MIMO)amplitudo and phase estimation (APES).

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ThesisOpen AccessMetadata saja

ESTIMASI NILAI JASA EKOSISTEM DAERAH ALIRAN SUNGAI (DAS) PAMUSIAN KOTA TARAKAN

NURIA IRAWAN

2022•Skripsi, Thesis, Disertasi, dan Tugas Akhir

The Pamusian watershed has the potential to be polluted due to human activities along the riverbanks such as domestic, industrial waste and various activities from the Tenguyun Market. This activity causes the Pamusian watershed to experience a decrease in quality, this is based on the quality of the water quality status in the downstream watershed which is classified as polluted waters and can no longer be used as a source of water for cultivation activities. Disruption of the function of the watershed ecosystem will affect the quality and quantity of the Pamusian watershed ecosystem. The purpose of this study is to determine the community's assessment and community preferences for the existence and sustainability of the Pamusian watershed ecosystem, as well as to estimate the economic value of the benefits of goods and services through willingness to pay. The research method used is descriptive analysis and the Contingent Valuation Method approach to analyze the community's willingness to pay. The results showed that the community's assessment of the existence of the Pamusian watershed has changed including the water has been polluted by 44%, there has been a flood of 42%, and the loss of flora and fauna is 14%, the community's preference for the preservation of the Pamusian watershed is 98% of respondents agreeing to the effort improvement of the Pamusian watershed ecosystem. The estimation of the economic value of the Pamusian watershed ecosystem through the willingness to pay of the community, namely the total WTP Indirect Use Value (IUV) of IDR 5.4 billion per year and the WTP Existence Value (EV) of IDR 7.2 billion per year. This value describes the community's willingness to pay for efforts to maintain river environmental services, both indirect benefits and benefits from the existence of the Pamusian watershed ecosystem.

Keywords: Willingness To PayEstimationPamusian Watershed

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