We propose a new algorithm for Doppler rate estimation in burst-mode phase shift keying (PSK) transmissions. This issue may arise in mobile radio links when the received signal experiences significant time-varying Doppler distortion, as in low-earth-orbit satellite systems. The algorithm is based on the transmission of a training sequence and has a feedforward structure that is easy to implement in digital form. Its estimation accuracy is close to the Cramer-Rao bound even at SNR values as low as 0 dB. Comparisons with earlier methods are discussed.
Doppler-rate Estimation for Burst Digital Transmission
MORELLI, MICHELE
2002-01-01
Abstract
We propose a new algorithm for Doppler rate estimation in burst-mode phase shift keying (PSK) transmissions. This issue may arise in mobile radio links when the received signal experiences significant time-varying Doppler distortion, as in low-earth-orbit satellite systems. The algorithm is based on the transmission of a training sequence and has a feedforward structure that is easy to implement in digital form. Its estimation accuracy is close to the Cramer-Rao bound even at SNR values as low as 0 dB. Comparisons with earlier methods are discussed.File in questo prodotto:
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