In this paper a new coding scheme is presented, which is coded by interleving two code blocks of an independent error correcting code, which exsist

- blocks apart, in order to improve error correcting ability of each block. The class of codes is especially effective for very noisy channel which contains both independent errors and burst errors by analysis of block error probability using modified Gilbert\´s burst noise channel model. And this coding scheme has no error propagation which is often seen in the general recurrent codes.