Phase and amplitude detector and method of determining errors

Details Phase and amplitude detector and method of determining errors Phase and amplitude detector and method of determining errors

H - Electricity

04

L

H04L 27/34 (2006.01) H03F 1/32 (2006.01) H03F 1/34 (2006.01) H04L 27/36 (2006.01)

Patent

CA 2329100

This invention relates to a phase and amplitude detector (160) required to identify small signal errors in a signal envelope having a large dynamic range, especially in the content of linearization of a power amplifier (122) arrangement employing a pre-distortion technique. A vector generator (300, 352, 372) responsive to a reference signal R (110) produces a frame of reference vectors R1-Rn (274-280) generated by a combination of the reference signal R (110) with first A (270) and P(272) offset vectors that provide an amplitude and phase displacement of the reference signal R (110). A signal combiner (290- 296, 360-366, 390 396) is arranged to generate difference vectors E1-En by combining the frame of reference vectors R1-Rn (274-280) and the feedback signal F (124, 150), with the difference vectors E1-En expressing the phase (p, 254) and the gain (a, 252) error terms relative to the reference signal R (110) and the first A (270) and second P (272) offset vectors. An error signal detector, (330-336) responsive to the difference vectors E1-En and arranged to provide a measure of the phase (p1 254) and the gain (a, 252) error terms, provides signal amplitudes that can be combined to generate error signals (182 (Y), 184. X)). The error signals take the general form: X = P1 - P2 - P3 + P4 = -8PpR: Y = P1 + P2 - P3 - P4 = -8AaR

Affiliated with

Also associated with

Rating

Phase and amplitude detector and method of determining errors does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase and amplitude detector and method of determining errors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase and amplitude detector and method of determining errors will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1492154