| 摘要 |
PURPOSE:To increase the degree of multiplexity to improve the frequency use efficiency. CONSTITUTION:A synthetic code generator 1 is provided with gamma encoders 2 (gamma=1, 2, 3,...) and a selecting switch 3. The encoder is a generator for (m) series xki (1<=i<=gamma) which is provided with an n-stage shift register (n=1, 2, 3...), and the selecting switch generates a series xk={xk1, xk2,..., xkgamma) from (m) series generated from gamma encoders. Encoders are so installed that xknot equal to xk'(k' is not k) is true. The number of code series of the output series xk of the synthetic code generator is (phi(2<n>-1)/n)<gamma>. |
