Calibration of vector demodulator using statistical analysis

Details Calibration of vector demodulator using statistical analysis Calibration of vector demodulator using statistical analysis

1992-11-13

1994-06-14

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375 10, 375 39, 4552261, 328166, H03D 302

Patent

active

053217268

ABSTRACT:
In the calibration of a vector demodulator, a statistical approach is used for the analysis and correction of received data. The magnitude of each vector, defined by an (I,Q) pair in a received data signal, is examined. If each measured magnitude has a predetermined value, calibration is not necessary. However, if the vector magnitudes differ from this value, a number of samples of the data signal are used to define a linearly transformed circle. The transformation parameters of this model are then calculated, for example using a least squares analysis. These parameters are related to the system errors to be corrected, and hence can be used to determine calibration factors which are employed to adjust the received information and produce actual data values.

REFERENCES:
patent: 4138645 (1979-02-01), Parato
patent: 4328552 (1982-05-01), Stovall
patent: 4381546 (1983-04-01), Armstrong
patent: 4439863 (1984-03-01), Bellamy
patent: 4503545 (1985-03-01), Bremer et al.
patent: 4631738 (1986-12-01), Bett et al.
patent: 4683578 (1987-07-01), Bett et al.
patent: 4709377 (1987-11-01), Martinez et al.

Affiliated with

Also associated with

Rating

Calibration of vector demodulator using statistical analysis does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Calibration of vector demodulator using statistical analysis, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Calibration of vector demodulator using statistical analysis will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1255050