Claims
- 1. A loop length and bridged tap length estimation system comprising:
a transfer function measurement module that measures a transfer function response for a transmission line; a modeling device that determines a model of a transfer function for the transmission line; and a minimization module that estimates a loop length and at least one bridged tap length based on a differential evolution comparison of the model of the transfer function and the measured transfer function.
- 2. The system of claim 1, wherein the model of the transfer function is based on an equation representing a current and a voltage at a source in terms of a second current and a second voltage at a load.
- 3. The system of claim 1, wherein the measured transfer function of the loop is acquired during initialization.
- 4. The system of claim 1, wherein the comparison is based on an initialization, a mutation and a selection step.
- 5. The system of claim 1, wherein the loop length and bridged tap length estimation is for a multicarrier modulation transmission line.
- 6. A method for loop length and bridged tap length estimation comprising:
measuring a transfer function response for a transmission line; determining a model of a transfer function for the transmission line; and estimating a loop length and at least one bridged tap length based on a differential evolution comparison of the model of the transfer function and the measured transfer function.
- 7. The method of claim 6, wherein the model of the transfer function is based on an equation representing a current and a voltage at a source in terms of a second current and a second voltage at a load.
- 8. The method of claim 6, wherein the measured transfer function of the loop is acquired during initialization.
- 9. The method of claim 6, wherein the comparison is based on an initialization, a mutation and a selection step.
- 10. The method of claim 6, wherein the loop length and bridged tap length estimation is for a multicarrier modulation transmission line.
- 11. A system for loop length and bridged tap length estimation comprising:
means for measuring a transfer function response for a transmission line; means for determining a model of a transfer function for the transmission line; and means for estimating a loop length and at least one bridged tap length based on a differential evolution comparison of the model of the transfer function and the measured transfer function.
- 12. The system of claim 11, wherein the model of the transfer function is based on an equation representing a current and a voltage at a source in terms of a second current and a second voltage at a load.
- 13. The system of claim 11, wherein the measured transfer function of the loop is acquired during initialization.
- 14. The system of claim 11, wherein the comparison is based on an initialization, a mutation and a selection step.
- 15. The system of claim 11, wherein the loop length and bridged tap length estimation is for a multicarrier modulation transmission line.
- 16. An information storage media comprising information that estimates a loop length and a bridged tap length comprising:
information that measures a transfer function response for a transmission line; information that determines a model of a transfer function for the transmission line; and information that estimates a loop length and at least one bridged tap length based on a differential evolution comparison of the model of the transfer function and the measured transfer function.
- 17. The media of claim 16, wherein the model of the transfer function is based on an equation representing a current and a voltage at a source in terms of a second current and a second voltage at a load.
- 18. The media of claim 16, wherein the measured transfer function of the loop is acquired during initialization.
- 19. The media of claim 16, wherein the comparison is based on an initialization, a mutation and a selection step.
- 20. The media of claim 16, wherein the loop length and bridged tap length estimation is for a multicarrier modulation transmission line.
RELATED APPLICATION DATA
[0001] This application claims the benefit of and priority under 35 U.S.C. §119(e) to U.S. Patent Application Serial No. 60/286,371, filed Apr. 26, 2001, entitled “Loop Characterization: Estimation Of The Loop Length And The Bridged Tap Lengths Of A Subscriber Loop With A Model Based Least-Squares Approach Using Differential Evolution Algorithm,” and is related to U.S. patent application Ser. No. 09/755,172, filed Jan. 8, 2001, entitled “Systems and Methods for Loop Length And Bridged Tap Length Determination of a Transmission Line,” both of which are incorporated herein by reference in their entirety.
Provisional Applications (1)
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Number |
Date |
Country |
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60286371 |
Apr 2001 |
US |