Patent ID: 7266160

Claim:
A method for reducing DC offset associated with a receiver comprising the steps of: (a) receiving signal burst samples, r(n); (b) storing said received burst samples, r(n), in memory; (c) averaging said stored burst samples, r(n), and calculating an initial DC offset, A 0 , from the stored burst samples; (d) removing DC offset value from stored burst samples as follows: r(n)−A 0 ; (e) estimating an updated DC offset, A 1 , and a channel impulse response (CR), ĥ, via a perturbed least squares (LS) CIR estimation representation modeling received burst samples r(n) as follows: r j = ∑ i = 0 L - 1 ⁢ h i ⁢ t j - i + f j ⁢ m + z j where h i are CR taps, t j are known training sequence symbols, f j is a generic function of j, m is static DC offset; and z j is additive white Gaussian noise, and (f) removing updated DC offset from stored burst samples as follows: r(n)−A 0 −A 1 .