Ditemukan 2 dokumen yang sesuai dengan query
Pamula, Venkata Rajesh
"This book discusses the design and implementation aspects of ultra-low power biosignal acquisition platforms that exploit analog-assisted and algorithmic approaches for power savings.The authors describe an approach referred to as analog-and-algorithm-assisted signal processing.This enables significant power consumption reductions by implementing low power biosignal acquisition systems, leveraging analog preprocessing and algorithmic approaches to reduce the data rate very early in the signal processing chain.They demonstrate savings for wearable sensor networks (WSN) and body area networks (BAN), in the sensors stimulation power consumption, as well in the power consumption of the digital signal processing and the radio link. Two specific implementations, an adaptive sampling electrocardiogram (ECG) acquisition and a compressive sampling (CS) photoplethysmogram (PPG) acquisition system, are demonstrated."
Switzerland: Springer Nature, 2019
e20506318
eBooks Universitas Indonesia Library
Andi Mukhtar Tahir
"
ABSTRAKEksperimen pencitraan bumi yang diambil dari satelit mikro yang sedang mengorbit sangat besar nilai harganya dalam berbagai aspek penelitian seperti sumber daya alam, klimatologi dan ramalan cuaca.
Berdasar pada teknologi Charge Coupled Device (CCD), sebuah kamera berukuran kecil dan murah akan dirangkaikan atau dipasang pada satelit mikro. Data citra yang dihasilkan oleh kamera CCD kemudian diubah kedalam format digital (digitized) dan disimpan pada memori eksperimen Simpan dan Baca Digital (Digital Store and Readout, DSR). Memori Simpan dan Baca Digital (DSR) ini adalah fasiiitas penyimpanan memori CMOS multifungsi yang mendukung transmisi ke bumi (downlink transmission). Pada penelitian ini dijelaskan rancangan dan implernentasi frame grabber dan digital store and readout untuk selanjutnya diaplikasikan sebagai suatu subsistem pencitra pada satelit mikro.
ABSTRACTEarth remote sensing experiments based on orbiting micro satellite give tremendous benefits for many aspects of the earth researches such as resources management, climatology and weather prediction.
Based on charge coupled device (CCD) technology a small sized and relatively inexpensive camera will be assembled and installed at the micro satellite. The produced remote sensing data of CCD camera will be formatted or digitized into the digital format and store at the memory of the digital store and readout, DSR experiment. The memory of DSR is the multifunction storing CMOS memory which supports the transmission down to the earth (downlink transmission). The research discusses the design and implementation process of the frame grabber and the digital store and readout. They will then be integrated as one of the subsystems of the micro satellite system."
2002
T-Pdf
UI - Tesis Membership Universitas Indonesia Library