1. Department of Mathematics, Northwest University, Xi′an, Shaanxi 710069, China; 2. The Science Institute, Air Force Engineering University, Xi′an, Shaanxi 710051, China 在知网中查找 在百度中查找 在本站中查找
The period distribution of q - ary BCH codes is studied by some important theory functions and cyclotomic coset, and the number of non-periodic equivalence classes of q - ary BCH codes with design 5 is given. The research results of Fu Fangwei and Shen Shiyi in literature \[1\] are generalized.