ULTRASONIC OFDM PULSE DETECTION FOR TIME OF FLIGHT MEASUREMENT OVER WHITE GAUSSIAN NOISE CHANNEL

2011 ◽  
Keyword(s):  
Gaussian Noise ◽  
Time Of Flight ◽  
White Gaussian Noise ◽  
Pulse Detection ◽  
Flight Measurement

scholarly journals Effects of white Gaussian noise on dynamic balance in healthy young adults

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Ziyou Zhou ◽  
Can Wu ◽  
Zhen Hu ◽  
Yujuan Chai ◽  
Kai Chen ◽  
...  
Keyword(s):  
Young Adults ◽  
Gaussian Noise ◽  
Center Of Pressure ◽  
Dynamic Balance ◽  
White Gaussian Noise ◽  
Fluctuation Analysis ◽  
Balance Performance ◽  
Short Term ◽  
Crossover Point ◽  
Short Time

AbstractIt has been known that short-time auditory stimulation can contribute to the improvement of the balancing ability of the human body. The present study aims to explore the effects of white Gaussian noise (WGN) of different intensities and frequencies on dynamic balance performance in healthy young adults. A total of 20 healthy young participants were asked to stand at a dynamic balance force platform, which swung along the x-axis with an amplitude of ± 4° and frequency of 1 Hz. Their center of pressure (COP) trajectories were recorded when they were stimulated by WGN of different intensities (block 1) and different frequencies (block 2). A traditional method and detrended fluctuation analysis (DFA) were used for data preprocessing. The authors found that only with 75–85 dB WGN, the COP parameters improved. WGN frequency did not affect the dynamic balance performance of all the participants. The DFA results indicated stimulation with 75 dB WGN enhanced the short-term index and reduced the crossover point. Stimulation with 500 Hz and 2500 Hz WGN significantly enhanced the short-term index. These results suggest that 75 dB WGN and 500 Hz and 2500 Hz WGN improved the participants’ dynamic balance performance. The results of this study indicate that a certain intensity of WGN is indispensable to achieve a remarkable improvement in dynamic balance. The DFA results suggest that WGN only affected the short-term persistence, indicating the potential of WGN being considered as an adjuvant therapy in low-speed rehabilitation training.

Adaptive subspace detection of extended target in white Gaussian noise using sinc basis

2015 ◽  
Vol 103 (1) ◽  
pp. 147-159 ◽  
Author(s):  
Xiao-Wei Zhang ◽  
Ming Li ◽  
Jian-She Qu ◽  
Hui Yang
Keyword(s):  
Gaussian Noise ◽  
White Gaussian Noise ◽  
Extended Target ◽  
Subspace Detection

Time-of-flight measurement of the evaporation residues from fusion of 5.9 mev/u 84kr and 27al

1981 ◽  
Vol 371 (3) ◽  
pp. 493-509 ◽  
Author(s):  
W.F.W. Schneider ◽  
F. Pühlhofer ◽  
R.P. Chestnut ◽  
C. Volant ◽  
H. Freiesleben ◽  
...  
Keyword(s):  
Time Of Flight ◽  
Flight Measurement ◽  
Evaporation Residues

Carrier Time-of-Flight Measurement Using a Probe Structure for Direct Evaluation of Carrier Transport in Multiple Quantum Well Solar Cells

2014 ◽  
Vol 4 (6) ◽  
pp. 1518-1525 ◽  
Author(s):  
Kasidit Toprasertpong ◽  
Naofumi Kasamatsu ◽  
Hiromasa Fujii ◽  
Tomoyuki Kada ◽  
Shigeo Asahi ◽  
...  
Keyword(s):  
Solar Cells ◽  
Quantum Well ◽  
Carrier Transport ◽  
Multiple Quantum Well ◽  
Time Of Flight ◽  
Multiple Quantum ◽  
Direct Evaluation ◽  
Flight Measurement

Fault Discrimination Using Synchronized Sequence Measurements under Strong White Gaussian Noise Background

2011 ◽  
Vol 12 (3) ◽  
Author(s):  
Yagang Zhang ◽  
Zengping Wang ◽  
Jinfang Zhang
Keyword(s):  
Discriminant Analysis ◽  
Gaussian Noise ◽  
White Gaussian Noise ◽  
Noise Background ◽  
Analysis Theory ◽  
Synchronized Sequence

In this paper on strong white Gaussian noise background based on discriminant analysis theory, we mainly adopt synchronized sequence measurements of PMU to search for laws of electrical quantities marked changes. We have developed a method to quickly and accurately discriminate fault components and fault sections. The research has shown that the fault discrimination by discriminant analysis theory is effective and reliable. Under the interference of strong random white Gaussian noise, discriminant analysis still has high redundancy.

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