Dependency of Output Signal to Noise Ratio on Output Power and Signal to Noise Ratio at Reference Path in the Adaptive Noise Cancellation Technique

Jaspreet Singh Deo

doi:https://doi.org/10.51976/ijari.711909

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Dependency of Output Signal to Noise Ratio on Output Power and Signal to Noise Ratio at Reference Path in the Adaptive Noise Cancellation Technique

Jaspreet Singh Deo

Vol 7 , Issue 1 , January - March 2019 | Pages: 62-66 | Research Paper

https://doi.org/10.51976/ijari.711909

Received: December 10, 2018 | Revised: February 20, 2019 | Accepted: February 28, 2019 | Published Online: March 25, 2019

Author Details ( * ) denotes Corresponding author

1. * Jaspreet Singh Deo, Department of Electronics and Communication Engineering, Khalsa College of Engineering and Technology, Amritsar, Punjab, India (jasy9018@gmail.com)

In Adaptive noise cancelling method uses two inputs one is primary input and other is the reference input. A “primary” input the combination of main signal and noise whereas a “reference” input contains correlated noise within the primary signal. The difference of reference input from primary gives the noise free signal. It is verified that signal to noise ratio at reference path impact the signal to noise ratio at output, and by decreasing the signal to noise ratio at reference path increase in signal to noise ratio achieved. Also, by decreasing changing the output power a SIR changes immensly.

Keywords

Adaptive Filters; Couplers; Phase Shift; Reference Path; Primary Path

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