Non-linear Frequency Estimation Based Upon Convolution Neural Network

Author:

Jafar Rana H.1,Abdulsadda Ahmad T.1

Affiliation:

1. Communications Tech. Eng. Dept., Al-Furat Al-Awsat Technical University (ATU), Najaf, Iraq

Abstract

A frequency estimator is to find the frequency of the received signal distorted by noise, and it has been found in systems such as radar, sonar, etc. In this research, the linear frequency modulation signal(LFM)of the radar system, the detection of the moving target and its frequency estimation were highlighted. The pre-trained convolutional neural network algorithm was used, which proved highly accurate in detecting the target and estimating its frequency, despite the lower level of the signal to the noise ratio(SNR) where it was dealt with. On the basis of the signals received as a two-dimensional image and taking into account the Doppler effect, as the target moves at different speeds and accelerations, the signals have been classified into single-frequency signals and LFM signals

Publisher

North Atlantic University Union (NAUN)

Subject

General Engineering,Energy Engineering and Power Technology

Reference25 articles.

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2. Boashash, B. (Ed.) Time-Frequency Signal Analysis and Processing: A Comprehensive Reference; Elsevier: Amsterdam, The Netherlands, 2016.

3. Brown, R.D., III; Liao, Y.; Fox, N. Low-Complexity Real-Time Single-Tone Phase and Frequency Estimation. IEEE Mil. Commun. 2010.

4. Bischl, B., Ligges, U., & Weihs, C. (2009). Frequency estimation by DFT interpolation: A comparison of methods (No. 2009, 06). Technical Report

5. Sen, Z., Jiulong, W., & Dengyun, Y. (2010, October). Frequency estimation using nonlinear least squares and Stransform. In 2010 3rd International Congress on Image and Signal Processing (Vol. 1, pp. 138-142). IEEE.

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