Implementation of Digital Lock-in Amplifier

27th IUPAP Conference on Computational Physics

物理学;计算机科学

Bhattacharyya, Sabyasachi^1 ; Ahmed, Ragib Nasir^2 ; Purkayastha, Basab Bijoy^3 ; Bhattacharyya, Kaustubh^2

Gauhati University Instititue of Science and Technology, Guwahati, India^1

School of Technology, Assam Don Bosco University, Guwahati, India^2

IIT Guwahati, Guwahati, India^3

关键词: Digital lock-in amplifier;    Noisy conditions;    Weak signals;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/759/1/012096/pdf
DOI  :  10.1088/1742-6596/759/1/012096

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The recovery of signal under the presence of noise is utmost essential for proper communication. The signals corrupted due to noise can be recovered using various techniques. However the weak signals are more prone to noise and hence they can be easily degraded due to noise. In such cases, a digital lock-in amplifier becomes an essential device for recovery of such weak signals. Keeping the cost, speed and other considerations, we will present the implementation of digital lock-in amplifier and how it recovers the weak signal under extreme noisy conditions.