scholarly journals Simultaneous Phase Shifting Shearing Interferometry for Measurement of Static and Dynamic Phase Objects

10.5772/34187 ◽  
2012 ◽  
Author(s):  
Noel-Ivan Toto-Arellano ◽  
David-Ignacio Serrano-Garca ◽  
Amalia Martnez-Garca ◽  
Gustavo Rodrguez-Zurit
Keyword(s):  
Phase Shifting ◽  
Shearing Interferometry ◽  
Dynamic Phase

Cyclic Radial Shearing Interferometry Based on Polarization Phase-Shifting Technique

2010 ◽  
Vol 30 (1) ◽  
pp. 127-131
Author(s):  
孔梅梅 Kong Meimei ◽  
高志山 Gao Zhishan ◽  
陈磊 Chen Lei ◽  
徐春生 Xu Chunsheng
Keyword(s):  
Phase Shifting ◽  
Shearing Interferometry ◽  
Phase Shifting Technique ◽  
Polarization Phase

scholarly journals An 11-frame phase shifting algorithm in lateral shearing interferometry

2013 ◽  
Vol 21 (23) ◽  
pp. 28325 ◽  
Author(s):  
Chao Fang ◽  
Yang Xiang ◽  
Keqi Qi ◽  
Chunlei Zhang ◽  
Changsong Yu
Keyword(s):  
Phase Shifting ◽  
Shearing Interferometry ◽  
Lateral Shearing ◽  
Lateral Shearing Interferometry

Four-step spatial phase-shifting shearing interferometry from moiré configuration by triple gratings

2012 ◽  
Vol 37 (11) ◽  
pp. 1922 ◽  
Author(s):  
Yang Song ◽  
Yunyun Chen ◽  
Jia Wang ◽  
Nan Sun ◽  
Anzhi He
Keyword(s):  
Phase Shifting ◽  
Shearing Interferometry ◽  
Spatial Phase

scholarly journals Performance Evaluation of IEEE 802.15.4-based Wireless Body Sensor Networks: An Experimental Study

2017 ◽  
Vol 3 (1) ◽  
pp. 15-27 ◽  
Author(s):  
Amir Hossein Moravejosharieh
Keyword(s):  
Sensor Networks ◽  
Performance Measures ◽  
Ieee 802.15.4 ◽  
Mutual Interference ◽  
Phase Shifting ◽  
Body Sensor Networks ◽  
Dynamic Phase ◽  
Significant Performance ◽  
Ieee 802.15.4 Standard ◽  
Wireless Body Sensor Networks

One of the most challenging issues in IEEE 802.15.4-based Wireless Body Sensor Networks (WBSNs) is the mutual interference caused by neighbouring WBSNs. As the number of co-located such sensor networks becomes larger in a frequency channel, the destructive impact of mutual interference becomes stronger and eventually causes significant performance degradation mainly due to inefficient channel utilisation. In this paper, we have proposed a new scheme called “dynamic-phase-shifting” in which a WBSN is able to shift its beacon packets to other phases (time slot) to eventually find a phase with reasonably higher performance gain. A set of performance measures along with two experimental scenarios are used to evaluate the performance of dynamic-phase shifting scheme compared to a baseline scheme that follows IEEE 802.15.4 protocol standard.  The obtained results show that dynamic-phase-shifting scheme is not only feasible to be implemented on real sensor devices but also, it outperforms IEEE 802.15.4 standard in terms of the considered performance measures.

Parallel phase-shifting radial shearing interferometry and its numerical verification

2018 ◽  
Author(s):  
Syogo Mochida ◽  
Masato Shinomura ◽  
Tatsuya Hirakawa ◽  
Takahito Fukuda ◽  
Yasuhiro Awatsuji ◽  
...  
Keyword(s):  
Phase Shifting ◽  
Numerical Verification ◽  
Shearing Interferometry
Sign in / Sign up

Export Citation Format

Share Document