Patent ID: 7715996
Filing Date: 2010-05-11
Classification: G01R

Abstract:
1. A method of estimating digital signal frequency, comprising the steps of: a) receiving on a computing device a signal; b) digitizing on the computing device the received signal; c) segmenting on the computing device the digitized signal into at least one data block; d) selecting on the computing device one of the data blocks; e) differentiating on the computing device the data block selected in step (d); f) calculating on the computing device the orthogonal of the differentiated data block of step (e) to the data block selected in step (d), comprising the steps of: g) computing on the computing device the phase, comprising the steps of: h) unwrapping on the computing device the phase from the step (g) by joining segments of the phase as the exceed 2π radians; i) differentiating on the computing device the phase determined in step (h) to estimate frequency; and j) returning to step (d) if a data block has not been selected.