Systems and methods for performing dynamic channel estimation

1. A method for dynamic channel estimation in a digital receiver, comprising:

performing a dynamic equalization on an incoming signal to compensate for channel distortion;

independently estimating one or more channel parameters for the dynamic equalization, wherein the one or more channel parameters track channel change, said parameter updating combining a pre-existing parameter with newly estimated channel parameters, said combining applying a convolution to the pre-existing and new parameters;

determining a convolution of the channel parameters and updating the parameters for the dynamic equalization for subsequent processing of incoming signal;

providing an equalized output from the digital receiver;

keeping convolution outputs at a predetermined length using truncation; and

dropping zero outputs in the truncation.

2. The method of claim 1 , comprising converting the channel parameters to a rate or a format that matches the dynamic equalization rate or format.

3. The method of claim 1 , comprising performing a sub-level channel estimation.

4. The method of claim 3 , wherein the sub-level channel estimation comprises using an open loop with the incoming signal.

5. The method of claim 3 , wherein the sub-level equalization uses the dynamic equalization.

6. The method of claim 1 , wherein the dynamic equalization comprises blind equalization.

7. The method of claim 1 , wherein the channel estimation uses a portion of output signals from the dynamic equalization.

8. The method of claim 1 , wherein the performing dynamic equalization and the independently estimating one or more channel parameters are done using separate paths.

9. The method of claim 8 , comprising applying rate conversion to the dynamic equalization prior to estimating the channels.

10. The method of claim 9 , comprising applying the rate conversion to updated channel parameters prior to the dynamic equalization.

11. The method of claim 9 , comprising applying the rate conversion to newly estimated parameters prior to combining with pre-existing parameters.

12. The method of claim 1 , wherein the dynamic equalization is in a frequency domain and the estimating of channel parameters are in a time domain.

13. The method of claim 12 , comprising converting newly estimated parameters to frequency domain prior to combining with pre-existing parameters.

14. The method of claim 13 , comprising combining newly estimated parameters with pre-existing parameters by one-by-one multiplication.

15. The method of claim 12 , comprising combining newly estimated parameters with pre-existing parameters and converting the combined parameters to a frequency domain.

16. The method of claim 1 , wherein the dynamic equalization and the estimating of channel parameters are performed in a frequency domain.