j m is static dc offset and z j is additive white gaussian noise the updated dc offset is then removed from stored burst as follows r n u2212 a 0 u2212 a 1 fig3 provides a general overview of the present invention 39 s u201c perturbed u201d joint dc offset and cir estimation algorithm 300 in step 302 a joint least squares ls cir dc offset dco algorithm is used to obtain initial cir and dco estimates it is important to note that ls is one of the possible approaches in joint cir dc offset estimation as outlined in zvonar 39 s u s pat no 6 504 884 it is used in the description as specific computational method though it can be replaced by other methods such as iterative computation mmse etc next in step 304 the calculated dco estimate is subtracted from the received signal burst r n it should be noted that steps 302 and 304 are optional depending on the required quality of the estimate further in step 306 a u201c perturbed u201d joint ls cir dco estimation matrix is computed based upon the training sequence used in step 308 the ls cir dco estimation is repeated using the above mentioned u201c perturbed u201d estimation matrix next in step 310 the newly calculated dco estimate is subtracted from the received signal burst r n fig4 illustrates an overview of a system 400 implemented in the receiver incorporating the methods of fig2 and 3 the received signal is stored in burst storage 402 next burst signal r k stored in 402 is input into block 404 which performs a joint estimation of dc offset and cir dco a 0 estimated in block 404 is forwarded to block 406 which then removes.