CLOSED LOOP PHASE CONTROL BETWEEN DISTANT POINTS
First Claim
1. A method for compensating for phase shifts of a communication signal, comprising:
- determining a first reference signal at a first location along a transmission path and a second reference signal at a second location along the transmission path, the second reference signal having the same phase as the first reference signal;
determining at the first location a first phase offset using the first reference signal and a first communication signal;
determining at the second location a second phase offset using the second reference signal and a second communication signal; and
adjusting at the second location a phase of a third communication signal using the first and second phase offsets to obtain a modified communication signal;
wherein the first, second, and third communication signals are the same communication signal obtained at different locations along the transmission path.
1 Assignment
0 Petitions
Accused Products
Abstract
Methods for compensating for phase shifts of a communication signal. The methods involve determining a first reference signal (Vref-1) at a first location along a transmission path and a second reference signal (Vref-2) at a second location along the transmission path. Vref-2 is the same as Vref-1. At the first location, a first phase offset is determined using Vref-1 and a first communication signal. At the second location, a second phase offset is determined using Vref-2 and a second communication signal. A phase of a third communication signal is adjusted at the second location using the first and second phase offsets to obtain a modified communication signal. The first, second, and third communication signals are the same communication signal obtained at different locations along the transmission path.
-
Citations
24 Claims
-
1. A method for compensating for phase shifts of a communication signal, comprising:
-
determining a first reference signal at a first location along a transmission path and a second reference signal at a second location along the transmission path, the second reference signal having the same phase as the first reference signal; determining at the first location a first phase offset using the first reference signal and a first communication signal; determining at the second location a second phase offset using the second reference signal and a second communication signal; and adjusting at the second location a phase of a third communication signal using the first and second phase offsets to obtain a modified communication signal; wherein the first, second, and third communication signals are the same communication signal obtained at different locations along the transmission path. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
-
-
13. A method for compensating for phase shifts of a communication signal, comprising:
-
determining a first reference signal at a first location along a transmission path and a second reference signal at a second location along the transmission path, the second reference signal has the same phase as the first reference signal; combining at the first location the communication signal with the first reference signal to obtain a modified communication signal; determining at the second location a phase offset using the modified communication signal and the second reference signal; and adjusting at the second location a phase of a modified communication signal using the phase offset to obtain a phase adjusted communication signal. - View Dependent Claims (14, 15)
-
-
16. A system, comprising:
-
at least one reference signal generator configured for determining a first reference signal at a first location along a transmission path and a second reference signal at a second location along the transmission path, the second reference signal has the same phase the first reference signal; and at least one closed loop operator communicatively coupled to the reference signal generator and configured for determining at the first location a first phase offset using the first reference signal and a first communication signal, determining at the second location a second phase offset using the second reference signal and a second communication signal, and adjusting at the second location a phase of a third communication signal using the first and second phase offsets to obtain a modified communication signal; wherein the first, second, and third communication signals are the same communication signal obtained at different locations along the transmission path. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24)
-
Specification