Results 21 to 30 of about 251,049 (300)

Bit rates in audio source coding [PDF]

open access: yes, 1992
The goal is to introduce and solve the audio coding optimization problem. Psychoacoustic results such as masking and excitation pattern models are combined with results from rate distortion theory to formulate the audio coding optimization problem.
Veldhuis, Raymond N.J.
core   +3 more sources

Subband coding of digital audio signals without loss of quality [PDF]

open access: yes, 1989
A subband coding system for high quality digital audio signals is described. To achieve low bit rates at a high quality level, it exploits the simultaneous masking effect of the human ear.
Breeuwer, Marcel   +2 more
core   +4 more sources

An Efficient Compression Method of Underwater Acoustic Sensor Signals for Underwater Surveillance

open access: yesSensors, 2022
In this paper, we propose a new compression method using underwater acoustic sensor signals for underwater surveillance. Generally, sonar applications that are used for surveillance or ocean monitoring are composed of many underwater acoustic sensors to ...
Yong Guk Kim   +5 more
doaj   +1 more source

Expression of a bee-venom phospholipase A2 gene from Apis mellifera in Escherichia coli

open access: yes浙江大学学报. 农业与生命科学版, 2004
The venomous phospholipase A2 (AmPLA2) coding reading region of Italian honeybee (Apis mellifera), which was found to be composed of 405 bp, was inserted into the expression vector pET-blue-1.
SHEN Li-rong   +3 more
doaj   +1 more source

Cross-layer Resource Allocation Scheme for Multi-band High Rate UWB Systems [PDF]

open access: yes, 2009
In this paper, we investigate the use of a cross-layer allocation mechanism for the high-rate ultra-wideband (UWB) systems. The aim of this paper is twofold.
Crussière, Matthieu   +2 more
core   +8 more sources

Next Generation High Throughput Satellite System [PDF]

open access: yes, 2012
This paper aims at presenting an overview of the state-of-the-art in High Throughput Satellite (HTS) systems for Fixed Satellite Services (FSS) and High Density-FSS.
Alberty, Eric   +5 more
core   +1 more source

Research on SUnet Winter Wheat Identification Method Based on GF-2

open access: yesRemote Sensing, 2023
Introduction: Winter wheat plays a crucial role in ensuring food security and sustainable agriculture. Accurate identification and recognition of winter wheat in remote sensing images are essential for monitoring crop growth and yield estimation.
Ke Zhou   +6 more
doaj   +1 more source

Blind-detection assisted sub-band adaptive turbo-coded OFDM schemes [PDF]

open access: yes1999 IEEE 49th Vehicular Technology Conference (Cat. No.99CH36363), 2003
Burst-by-burst adaptive OFDM modems efficiently combat the effects of strong time-variant multipath interference. Their performance is investigated using blind modem mode detection and turbo coding. Virtually error-free modem mode detection is achieved over Gaussian channels for signal-to-noise ratios (SNR) in excess of about 10 dB upon using one of ...
Keller, T., Hanzo, L.
openaire   +2 more sources

Design issues toward a cost effective physical layer for multiband OFDM (ECMA-368) in consumer products [PDF]

open access: yes, 2006
The creation of Wireless Personal Area Networks (WPANs) offers the Consumer Electronics industry a mechanism to truly unwire consumer products, leading to portability and ease of installation as never seen before.
Sherratt, R.S.
core   +1 more source

Comparison of Effects of Entropy Coding Schemes Cascaded with Set Partitioning in Hierarchical Trees

open access: yesMehran University Research Journal of Engineering and Technology, 2018
WT (Wavelet Transform) is considered as landmark for image compression because it represents a signal in terms of functions which are localized both in frequency and time domain.
Ali Iqbal   +4 more
doaj   +1 more source

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