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INDONESIA
Jurnal IPTEK
Published by Institut Teknologi Adhi Tama Surabaya
ISSN : 14117010     EISSN : 2477507X     DOI : -
Core Subject : Science, Engineering,
Civil Engineering, Building, Construction & Architecture Computer Science & IT Industrial & Manufacturing Engineering Mechanical Engineering
Jurnal IPTEK - Media Komunikasi Teknologi Diterbitkan secara berkala setahun 2 (dua) kali pada bulan Mei dan Desember oleh Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM), Institut Teknologi Adhi Tama Surabaya (ITATS). Jurnal ini memuat hal-hal yang berkaitan dengan bidang Teknik Sipil, Teknik Mesin, Teknik Elektro, Teknik Arsitektur, Teknik Perkapalan, Teknik Informatika, Teknik Industri, Teknik Kimia, Teknik Lingkungan, Teknik Pertambangan, Teknik Geologi, Desain Produk, Sistem Informasi, dan Sistem Komputer baik yang ditulis dalam bahasa Indonesia maupun bahasa Inggris (diutamakan).
Arjuna Subject : -
Articles 12 Documents
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Search results for , issue "Vol 21, No 2 (2017): December" : 12 Documents clear
ANALISIS PENGENDALIAN MUTU PADA PENJUALAN IKAN BADER/TAWES METODE SQC DI TPI UD. JAZULI IB GRESIK ROSYIDI, MOH RIRIN
Jurnal IPTEK Vol 21, No 2 (2017): December
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (11.782 KB) | DOI: 10.31284/j.iptek.2017.v21i2.147

Abstract

UD. Jazuli IB in TPI Lumpur Gresik has implemented quality control. But in the belief, there is damage to bader/tawes in 2016 with a percentage of 17%. The purpose of this research is to know the implementation of quality control at UD. Jazuli IB in bader/tawes fishing and quality control system using statistical quality. Control approach with the result of this research is implementation of quality control in fish processing bader/tawes seen from good in meeting company standards, this is evidenced by customer statement when monitored using map control, quality control it some have not been properly implemented, as many damaged fish are out control limits quality control by using the quality cost implemented by the company is still loose, because the cost of quality issued to control the cost quality is 187,444,404 IDR, quality assurance fee 18,204,000 IDR, and total cost for quality 205,648,404 IDR with damage rate 1,517 kg, it is bigger than it should be quality cost. Costs for 58,414,320 IDR, and the total cost for the quality level is 116,828,715 IDR with the rate from damage 4,867.86 kg. Thus, companies need to improve quality continuously to obtain maximum results and processing and quality control.
PERBANDINGAN KINERJA OSTBC (Orthogonal Space Time Block Code) DENGAN RATE ½ MENGGUNAKAN MODULASI BPSK & QPSK Yoga Perdana, Ridho Hendra
Jurnal IPTEK Vol 21, No 2 (2017): December
Publisher : LPPM Institut Teknologi Adhi Tama Surabaya (ITATS)

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (693.851 KB) | DOI: 10.31284/j.iptek.2017.v21i2.202

Abstract

The wireless communication system is a well known and a standard technology. However, the system performance is highly dependent on the channel fading between transmitter and receiver. Therefore, there is a transmit diversity technique such as Multiple Input Multiple Output (MIMO) to reduce fading effect.One of the transmit diversity technique is Orthogonal Space-Time Block Code (OSTBC). OSTBC is a transmission channel coding technique with multiple transmitting and receiving antennas. The principle of OSTBC is to send multiple copies of the information signal from a data stream across some antennas; thus, some of the copies of data received are better than others. After combined with BPSK modulation, a compressed Bot Error Rate (BER) value at 10-3 at 5 dB Signal to Noise Ratio (SNR) was obtained, whereas after combined by QPSK modulation, a BER value at 10-3 at 7 dB SNR was obtained.

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