Predistortion arrangement for a digital transmission system

Details Predistortion arrangement for a digital transmission system Predistortion arrangement for a digital transmission system

H - Electricity

04

B

325/45

H04B 15/00 (2006.01) H03F 1/32 (2006.01) H04B 1/62 (2006.01) H04B 7/15 (2006.01) H04L 27/36 (2006.01)

Patent

CA 2026819

PHF 89 593 07/09/1930 ABSTRACT SUMMARY OF THE INVENTION: Predistortion arrangement for a digital transmission system. Predistortion arrangement (9) for a digital transmission system which transmits complex input data of a constellation by means of a modulator (14) and a power amplifier (15) which distorts the data, the arrangement comprising a predistortion circuit (11) which predistorts the input data in opposite sense before they pass through the amplifier. It comprises a transmit filter (10) which applies oversampled filtered data encoded with 2N bits to the predistortion circuit (11) at the rate k/T, which circuit first determines approximate values of the predistorted data on the basis of a portion of 2M bits of the field of 2N bits (M<N), which data are thereafter revised with the aid of the remaining portion of said field. The predistortion circuit comprises for each channel a memory (112) addressed by the field of M bits which produces the approximate values of the predistorted data and an interpolation circuit (111) which derives therefrom the revised predistorted data. Reference: Fig. 5.

Affiliated with

Also associated with

Rating

Predistortion arrangement for a digital transmission system does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Predistortion arrangement for a digital transmission system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Predistortion arrangement for a digital transmission system will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1408474