Robust self-cancellation-based time-of-arrival estimation algorithm to carrier frequency offset for bi-directional chirp signals

2014 ◽  
Vol 8 (12) ◽  
pp. 2057-2063 ◽  
Author(s):  
Daegun Oh ◽  
Jong-Hun Lee ◽  
Jong-Wha Chong ◽  
Sangdeok Kim
Keyword(s):  
Carrier Frequency ◽  
Carrier Frequency Offset ◽  
Estimation Algorithm ◽  
Frequency Offset ◽  
Time Of Arrival ◽  
Chirp 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.

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