| 摘要 |
A method of receiving a signal and performing a carrier recovery, the method comprising the steps of: (a) receiving a signal Xk. (b) rotating Xk by a previous correction angle thetak-1 to generate a rotated signal Qk, wherein the rotation is based upon a sine and cosine of the previous correction angle. (c) mapping the rotated signal Qk to a valid decision Ak out of a constellation. (d) generating a normalized error signal Deltathetak,k-1 that reflects an angular difference between a correction angle thetak and the previous correction angle thetak-1. (e) calculating and storing a sine and a cosine of the correction angle thetak, wherein the calculation is based upon Deltathetak,k-1, the sine of the previous correction angle thetak-1 and the cosine of the previous correction angle.
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