Article Per Year (5 Year)
p-Index From 2020 - 2025
0.408
P-Index
This Author published in this journals
All Journal Paspalum: Jurnal Ilmiah Pertanian TEKTRIKA - Jurnal Penelitian dan Pengembangan Telekomunikasi, Kendali, Komputer, Elektrik, dan Elektronika
Asep Permadi
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Electrical & Electronics Engineering

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
KINERJA SISTEM CHAOTIC DIGITAL CDMA DENGAN MODULASI QUADRATURE CHAOTIC SHIFT KEYING Asep Permadi; Hadi Suwastio; Suyatno Suyatno
TEKTRIKA Vol 9 No 1 (2004)
Publisher : Telkom University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25124/tektrika.v9i1.234

Abstract

Salah satu definisi chaos adalah “sebuah keteraturan tanpa periodisitas”[10]. Salah satu sifat dari chaos adalah unpredictable atau tidak dapat di prediksi. Salah satu dari aplikasi chaos ini adalah digunakannya sinyal chaos pada teknik spreading code pada CDMA. Dengan teknik ini diharapkan tingkat keamanan dari sinyal informasi yang di tebar menjadi lebih tinggi. Teknik spreading code dengan menggunakan chaos ini sering disebut (CD)2MA atau Chaotic Digital Code Divission Multiple Access. Penelitian yang sudah dilakukan adalah teknik (CD)2MA dan dimodulasikan dengan menggunakan teknik modulasi VMSK (Very Minimum Phase Shift-Keying) yang mempunyai efisiensi bandwidth cukup efektif, namun proses demodulasinya sangat sulit sebab harus mengunakan filter kristal dengan delay group yang besar. Penelitian ini akan mencoba menggabungkan sistem (CD)2MA dan memodulasikannya dengan QCSK (Quadrature Chaotic Shift Keying). Dasar pemikiran QCSK adalah modulasi QPSK yang mempunyai performansi hampir sama dengan BPSK tetapi mempunyai efisiensi BW yang lebih baik. QCSK mempunyai efisiensi Bandwidth yang lebih baik yaitu setengah dari sistem DCSK. Hal ini diharapkan dapat mengimbangi sistem (CD)2MA yang menghasilkan lebar bandwidth yang cukup lebar.Hasil yang diharapkan adalah performansi dan efisiensi bandwidth sistem lebih baik atau sama dengan performansi yang dihasilkan dari sistem (CD)2MA yang dimodulasikan dengan modulasi VMSK.Kata kunci: Chaos, (CD)2MA, QCSK, VMSK, MAI, Processing Gain
Analisis Usahatani Padi Organik Kelompok Tani Ciawitali Cilawu Garut Tatang Mulyana; Mutia Salsabila; Asep Permadi
Paspalum: Jurnal Ilmiah Pertanian Vol 11, No 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Winaya Mukti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35138/paspalum.v11i2.625

Abstract

Organik Pady is a superior food crop commodity in Cilawu District, Garut Regency. This study aims to analyze Organik Pady farming based on land tenure status. This research was conducted in Mangkurayat Village, Cilawu District, Garut Regency from October to November 2021. The types of data used in this study were primary data and secondary data. Sampling in this study using purposive sampling method. In order to obtain a sample of 20 people owner farmer, and 10 people of share tenant. Data analysis used in this research is descriptive quantitative by analizing farm production costs, revenue, income, and farming feasibility. The results showed that the average total production cost incurred by the owner farmer were Rp. 13.793486 /Ha/Planting Season, while the share tenant are Rp. 9.299.249 /Ha/Planting Season. The profit-sharing system for shelled corn farming in the research area for share tenant is 50% of the total yield of production. The shelled corn farming which is run by the owner farmers and share tenant is feasible to be cultivated with an average r/c ratio of 1,7 for the owner farmers, and the r/c ratio value of 1,2 for the share tenant.  
Analisis Usahatani Padi Organik Kelompok Tani Ciawitali Cilawu Garut Tatang Mulyana; Mutia Salsabila; Asep Permadi
Paspalum: Jurnal Ilmiah Pertanian Vol. 11 No. 2 (2023)
Publisher : Lembaga Penelitian dan Pengabdian Universitas Winaya Mukti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35138/paspalum.v11i2.625

Abstract

Organik Pady is a superior food crop commodity in Cilawu District, Garut Regency. This study aims to analyze Organik Pady farming based on land tenure status. This research was conducted in Mangkurayat Village, Cilawu District, Garut Regency from October to November 2021. The types of data used in this study were primary data and secondary data. Sampling in this study using purposive sampling method. In order to obtain a sample of 20 people owner farmer, and 10 people of share tenant. Data analysis used in this research is descriptive quantitative by analizing farm production costs, revenue, income, and farming feasibility. The results showed that the average total production cost incurred by the owner farmer were Rp. 13.793486 /Ha/Planting Season, while the share tenant are Rp. 9.299.249 /Ha/Planting Season. The profit-sharing system for shelled corn farming in the research area for share tenant is 50% of the total yield of production. The shelled corn farming which is run by the owner farmers and share tenant is feasible to be cultivated with an average r/c ratio of 1,7 for the owner farmers, and the r/c ratio value of 1,2 for the share tenant.  
Co-Authors Hadi Suwastio Mutia Salsabila Suyatno Suyatno Tatang Mulyana