Frame-based carrier frequency and phase recovery system and method

1. A method of wireless signal recovery, the method comprising:

receiving a digitized signal representative of a received wireless signal;

identifying a frame identifier in a physical layer header of the digitized signal;

utilizing the identified frame identifier to estimate a first phase associated with the frame identifier;

utilizing a remaining portion of the physical layer header to estimate a second phase associated with the remaining portion, wherein estimating the second phase is based on doubling a phase angle associated with the remaining portion and comprises:

doubling the phase angle associated with the remaining portion;

calculating the second phase estimate for the remaining portion by summing a plurality of in-phase and quadrature values and dividing the summation by two; and

resolving a phase ambiguity in the second phase estimate by comparing the second phase estimate to the first phase estimate; and

combining the first phase estimate and the second phase estimate to generate a first combined phase estimate.

2. The method of claim 1 , further comprising:

decoding the remaining portion utilizing the first phase estimate.

3. The method of claim 2 , further comprising:

utilizing the decoded remaining portion to estimate a third phase.

4. The method of claim 2 , further comprising:

utilizing the decoded remaining portion to estimate a third phase associated with the remaining portion; and

combining the first phase estimate and the third phase estimate to generate a second combined phase estimate.

5. The method of claim 2 , wherein the decoding the remaining portion utilizing the first phase estimate comprises:

decoding the remaining portion utilizing the first combined phase estimate.

6. The method of claim 1 , wherein utilizing the remaining portion of the physical layer header to estimate the second phase associated with the remaining portion comprises:

utilizing a decoded version of the remaining portion of the physical layer header to estimate the second phase for the remaining portion.

7. The method of claim 1 , further comprising:

identifying a plurality of additional frame identifiers in the digitized signal;

estimating a phase for each of at least a subset of the additional frame identifiers; and

utilizing the phase estimates associated with the additional frame identifiers to adaptively adjust the first combined phase estimate.

8. The method of claim 1 , further comprising:

utilizing the identified frame identifier to estimate a frequency error; and

correcting the estimated frequency error.

9. The method of claim 1 , wherein a modulation format of the physical layer header of the digitized signal is Binary Phase Shift Key (BPSK).

10. The method of claim 1 , wherein resolving the phase ambiguity in the second phase estimate by comparing the second phase estimate to the first phase estimate comprises:

inverting the plurality of in-phase and quadrature values, in response to discovering that an angle difference between the second phase estimate and the first phase estimate is more than 90 degrees; and

recalculating the second phase estimate for the remaining portion by summing the plurality of inverted in-phase and quadrature values and dividing the summation by two.

11. A terminal for wireless signal recovery, the terminal comprising:

a receiver module configured to receive a wireless signal transmitted via satellite; and

a processor module, communicatively coupled with the receiver module, and configured to:

identify a frame identifier in a physical layer header of the received wireless signal;

utilize the identified frame identifier to estimate a first phase associated with the frame identifier; and

utilize a remaining portion of the physical layer header to estimate a second phase associated with the remaining portion, wherein estimating the second phase is based on doubling a phase angle associated with the remaining portion and comprises:

doubling the phase angle associated with the remaining portion;

calculating the second phase estimate for the remaining portion by summing a plurality of in-phase and quadrature values and dividing the summation by two; and

resolving a phase ambiguity in the second phase estimate by comparing the second phase estimate to the first phase estimate.

12. The terminal of claim 11 , wherein the processor module is further configured to:

utilize the first phase estimate and the second phase estimate to generate a first combined phase estimate associated with the physical layer header.

13. The terminal of claim 12 , wherein the processor module is further configured to:

decode the remaining portion utilizing the first combined phase estimate.

14. The terminal of claim 13 , wherein the processor module is further configured to:

utilize the decoded remaining portion to estimate a third phase.

15. The terminal of claim 13 , wherein the processor module is further configured to:

utilize the decoded remaining portion to estimate a third phase for the remaining portion; and

combine the first phase estimate and the third phase estimate to generate a second combined phase estimate.

16. The terminal of claim 11 , wherein the utilization of the remaining portion of the physical layer header to estimate the second phase associated with the remaining portion comprises:

utilizing a decoded version of the remaining portion of the physical layer header to estimate the second phase for the remaining portion.

17. The terminal of claim 11 , wherein the processor module is further configured to:

identify a plurality of additional frame identifiers in the digitized signal;

estimate a phase for at least a subset of the additional frame identifiers; and

utilize the phase estimates for the additional frame identifiers in combination with the first phase estimate or the second phase estimate to adaptively adjust a combined phase estimate.

18. The terminal of claim 11 , wherein a modulation format of the physical layer header of the received wireless signal is Binary Phase Shift Key (BPSK).

19. The terminal of claim 11 , wherein resolving the phase ambiguity in the second phase estimate by comparing the second phase estimate to the first phase estimate comprises:

inverting the plurality of in-phase and quadrature values, in response to discovering that an angle difference between the second phase estimate and the first phase estimate is more than 90 degrees; and

recalculating the second phase estimate for the remaining portion by summing the plurality of inverted in-phase and quadrature values and dividing the summation by two.