In Section 6.4.3 we presented a recursion for converting the direct-form coefficients bq(k) into the lattice filter coefficients cq(k) and a recursion for converting the coefficients cq(k) into bq(k).
(a) Create an m-file btoc. m for converting the coefficients bq(k) into cq(k).
(b) Create an m-file c tab. m for converting the coefficients cq (k) into bq (k).