The technology of interleaving plays an important role in avoiding burst errors by fading channel in communication systems and can greatly improve the reliability of data transmission.The convolutional interleave is widely used because it can reduce delay and save memory space.For the convolutional interleave in the channel coding

a method is proposed to blindly estimate the interleave parameters in the non-cooperative context.It can estimate these parameters effectively by constructing the deinterleaver

converting the initial location of the intercepted data to the delay deviation of interleaving

and then making use of Gaussian-Jordan elimination through pivoting algorithm in Galois Fields and the properties of linear block code.Computer simulation results show that the proposed algorithm can provide good performance even when the bit error rate is 0.01.