High speed optical signal analyses for microring resonator filter based on FDTD joined signal processing method

2007 ◽  
Author(s):  
Wei Hong ◽  
Xiao-han Sun
Keyword(s):  
Signal Processing ◽  
High Speed ◽  
Optical Signal ◽  
Processing Method ◽  
Microring Resonator ◽  
Signal Processing Method

scholarly journals Wideband Anti-Jamming Based on Free Space Optical Communication and Photonic Signal Processing

Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1136
Author(s):  
Ben Wu ◽  
Yang Qi ◽  
Chenxi Qiu ◽  
Ying Tang
Keyword(s):  
Signal Processing ◽  
Optical Communication ◽  
Free Space ◽  
High Speed ◽  
Transportation Systems ◽  
Processing Method ◽  
Free Space Optical Communication ◽  
Free Space Optical ◽  
Signal Processing Method ◽  
Space Optical Communication

We propose and demonstrate an anti-jamming system to defend against wideband jamming attack. Free space optical communication is deployed to provide a reference for jamming cancellation. The mixed signal is processed and separated with photonic signal processing method to achieve large bandwidth. As an analog signal processing method, the cancellation system introduces zero latency. The radio frequency signals are modulated on optical carriers to achieve wideband and unanimous frequency response. With wideband and zero latency, the system meets the key requirements of high speed and real-time communications in transportation systems.

An Intelligent Signal Processing Method for High-Speed Weighing System

2013 ◽  
Vol 9 (2) ◽  
pp. 179-186
Author(s):  
Hui-Mei He ◽  
Pingjie Huang ◽  
Dibo Hou ◽  
Wen Cai ◽  
Zhe Liu ◽  
...  
Keyword(s):  
Signal Processing ◽  
High Speed ◽  
Environmental Changes ◽  
Structural Characteristics ◽  
Processing Method ◽  
Ar Model ◽  
Experimental Conditions ◽  
Method Performance ◽  
Signal Processing Method ◽  
Sorting System

AbstractThe dynamic weighing signal processing method in high-speed fruits sorting system directly affects the weighing accuracy. This paper describes a basic modeling method for time series, including modeling, order determining, applicability analysis, and prediction. Considering the structural characteristics of weighing system and the limit of PLC sampling speed, a modified auto-regressive (AR) model for stable value prediction of the high-speed weighing signals is presented. Meanwhile, a simulation base on Matlab platform and an implementation example are used to test the method performance. At last, the impacts of environmental changes, sorting speeds, fruits shapes, and sizes on the method performance are discussed. In experimental conditions, this method can be applied to fruits sorting system with sorting speed up to 18 per second for standard fruit (smooth round surface without defects) and an acceptable weighing accuracy can be obtained.

An Intelligent Signal Processing Method for High Speed Weighing System

2012 ◽  
Vol 8 (4) ◽  
Author(s):  
Huimei He ◽  
Pingjie Huang ◽  
Dibo Hou ◽  
Wen Cai ◽  
Zhe Liu ◽  
...  
Keyword(s):  
Signal Processing ◽  
High Speed ◽  
Environmental Changes ◽  
Structural Characteristics ◽  
Processing Method ◽  
Ar Model ◽  
Experimental Conditions ◽  
Method Performance ◽  
Signal Processing Method ◽  
Sorting System

Abstract The dynamic weighing signal processing method in high speed fruits sorting system directly affects the weighing accuracy. This paper describes a basic modeling method for time series, including modeling, order determining, applicability analysis, and prediction. Considering the structural characteristics of weighing system and the limit of PLC sampling speed, a modified autoregressive (AR) model for stable value prediction of the high speed weighing signals is presented. Meanwhile, a simulation base on Matlab platform and an implementation example are used to test the method performance. At last, the impacts of environmental changes, sorting speeds, fruits shapes and sizes on the method performance are discussed. In experimental conditions, this method can be applied to fruits sorting system with sorting speed up to 18 per second for standard fruit (smooth round surface without defects) and an acceptable weighing accuracy can be obtained.

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