الفهرس 
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Abstract
our work deals with the generation of binary random codes. These codes are mainly used for spread spectrum systems, cryptosystems-key generation and finally code-division multiple-access systems. We will represent a new method for generating pseudo-random numbers based on a fuzzy system. also, we will represent some fails of this method and the solutions for them. Finally, we will adopt this pseudo-random number generator to be suitable for generation binary random sequences. These sequences are of good correlation properties. They can be considered of unlimited length. but we will limit our work for sequences of length 20000 bit. These sequences Can be considered orthogonal . And by these features, they can he used for all mentioned fields.