Abstract
How to accurately compensate the Doppler shift is the main challenge for broadband satellite terminals. In this paper, a frequency offset estimation algorithm based on frequency domain window function iterative peaking search is proposed with high-order M-APSK signal models, considering both algorithm complexity and estimation accuracy. The variance of the new algorithm is derived mathematically, and performance curve compared with Cramer-Rao Lower Bound (CRLB) is also simulated under various SNR (signal-to-noise ratio). The effectiveness of new method is verified by simulations.








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Liu, X., Ren, G., Zhou, X. et al. Frequency Offset Estimation Algorithm of High-Order M-APSK Modulation Signal Based on DFT. Mobile Netw Appl 27, 1659–1670 (2022). https://doi.org/10.1007/s11036-021-01867-6
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DOI: https://doi.org/10.1007/s11036-021-01867-6