scholarly journals Portable Laser Photoacoustic Methane Sensor Based on FPGA

2016 ◽  
Author(s):  
Jianwei Wang ◽  
Huili Wang ◽  
Xianyong Liu
Keyword(s):  
Signal Processing ◽  
Detection Limit ◽  
Diode Laser ◽  
Wavelength Range ◽  
Field Programmable Gate Array ◽  
Photoacoustic Signal ◽  
Photoacoustic Cell ◽  
Methane Sensor ◽  
Field Programmable ◽  
Methane Detection

A portable laser photoacoustic sensor based on a Field-Programmable Gate Array (FPGA) is reported for methane detection. A tunable DFB diode laser in the 1654 nm wavelength range is used as an excitation source. The photoacoustic signal processing was implemented by a FPGA device. A small resonant photoacoustic cell is designed. The minimum detection limit (1σ) of 10 ppm for methane (CH4) is demonstrated.

Real-time signal processing in field programmable gate array based digital gamma-ray spectrometer

2020 ◽  
Vol 91 (10) ◽  
pp. 104707
Author(s):  
Yinyu Liu ◽  
Hao Xiong ◽  
Chunhui Dong ◽  
Chaoyang Zhao ◽  
Quanfeng Zhou ◽  
...  
Keyword(s):  
Signal Processing ◽  
Real Time ◽  
Field Programmable Gate Array ◽  
Gamma Ray ◽  
Time Signal ◽  
Gamma Ray Spectrometer ◽  
Field Programmable ◽  
Gate Array ◽  
Real Time Signal Processing

The Design and Implementation of Parallel Distributed Algorithm FIR Filter Based on FPGA

2012 ◽  
Vol 571 ◽  
pp. 534-537
Author(s):  
Bao Feng Zhang ◽  
De Hu Man ◽  
Jun Chao Zhu
Keyword(s):  
Signal Processing ◽  
Real Time ◽  
Field Programmable Gate Array ◽  
Distributed Algorithm ◽  
Design Method ◽  
Fir Filter ◽  
Experimental Results ◽  
Linear Phase ◽  
Design And Implementation ◽  
Field Programmable

The article proposed a new method for implementing linear phase FIR filter based on FPGA. For the key to implementing the FIR filter on FPGA—multiply-add operation, a parallel distributed algorithm was presented, which is based on LUT. The designed file was described with VHDL and realized on Altera’s field programmable gate array (FPGA), giving the design method. The experimental results indicated that the system can run stably at 120MHz or more, which can meet the requirements of signal processing for real-time.

Optimization of Advanced Signal Processing Architectures for Detection of Signals Immersed in Noise

2016 ◽  
pp. 171-212
Author(s):  
Marcos A. Funes ◽  
Matías N. Hadad ◽  
Patricio G. Donato ◽  
Daniel O. Carrica
Keyword(s):  
Signal Processing ◽  
Field Programmable Gate Array ◽  
Processing Scheme ◽  
Coding Schemes ◽  
Radar Systems ◽  
Complementary Sequences ◽  
Field Programmable ◽  
Processing Architectures ◽  
Detection Of Signals ◽  
Application Fields

The use of Field Programmable Gate Array (FPGA) devices in the signal processing field has been on a constant rise since the beginning of the last decade. In particular, in the field of signal processing applications, the implementation of methods and techniques for the detection of coded signals immersed in noise should be highlighted. In this chapter, focus is placed on a special type of coding known as Complementary Sequences, and on some of the coding schemes derived from them. These sequences have been employed in many different application fields, ranging from safety sensors and radar systems to communications and material characterization. Specifically, this chapter deals with issues related to algorithms improvement and to their implementation in FPGA platforms, with particular emphasis on hardware resources efficiency and on the reliability of the whole processing scheme.

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