scholarly journals Phase-Based Estimation of the Harmonic Signal Frequency

2021 ◽  
pp. 126-131
Author(s):  
Oleg V. Chernoyarov ◽  
◽  
Vladimir A. Ivanov ◽  
Maksim I. Maksimov ◽  
Serguei Dachian
Keyword(s):  
Carrier Frequency ◽  
Harmonic Signal ◽  
Estimation Algorithm ◽  
High Accuracy ◽  
Signal Frequency ◽  
Phase Fluctuations ◽  
Information Signal ◽  
Narrowband Noise

This paper examines estimating the frequency of the information signal based on the analysis of the probability characteristics of the phase fluctuations when a mix of signal and narrowband noise is observed. The new estimation algorithm is described while the shortcomings of the commonly applied methods are specified. The performance of the proposed approach is illustrated by a number of examples. In particular, it is demonstrated that the application of the introduced procedure allows high accuracy measurements of the carrier frequency of the non-modulated, the multilevel phase and quadrature keyed signals.

High-Accuracy Carrier Frequency Offset Estimation for MPSK Signals

2012 ◽  
Vol 195-196 ◽  
pp. 599-602
Author(s):  
Dong Ling Zhang ◽  
Lin Dong Ge
Keyword(s):  
Carrier Frequency ◽  
Carrier Frequency Offset ◽  
Gaussian White Noise ◽  
Estimation Algorithm ◽  
Frequency Offset ◽  
High Accuracy ◽  
Accurate Estimation ◽  
Performance Improvements ◽  
Nonlinear Processing ◽  
Energy Center

In this paper a high accuracy estimation algorithm of carrier frequency offset for MPSK signals in Gaussian white noise is proposed. Like the conventional practice, first the algorithm employs nonlinear processing to convert the MPSK signal to single sinusoidal signal, followed by windowed FFT, and then a method based on energy center correction is used to achieve accurate estimation. Simulation results have proved the feasibility,easiness of implementation, and the performance improvements in terms of accuracy and data length needed.

Robust MVDR Estimation via Polynomial Rooting for MC-CDMA Carrier Frequency Offset

2013 ◽  
Vol 284-287 ◽  
pp. 2687-2693
Author(s):  
Ing Jiunn Su ◽  
Chiao Chan Huang
Keyword(s):  
Carrier Frequency ◽  
Code Division Multiple Access ◽  
Multiple Access ◽  
Carrier Frequency Offset ◽  
Low Complexity ◽  
Frequency Offset ◽  
High Accuracy ◽  
Cdma Systems ◽  
Code Division Multiple ◽  
Polynomial Rooting

In this letter, we present a blind carrier frequency offset (CFO) estimator by exploiting the polynomial rooting technique for multicarrier-code division multiple access (MC-CDMA) systems. Relative high accuracy and low-complexity to the CFO estimation can be achieved by rooting a polynomial. Simulation results are provided for illustrating the effectiveness of the proposed blind polynomial rooting estimator.

Sign in / Sign up

Export Citation Format

Share Document