构造了一种扩展的双曲线性同余码 ( EHLC)并分析了其码字性能 .用该码作为时间扩频伪随机序列和以素数码 ( PC)作为波长跳频伪随机序列 ,再构成一种新的二维光正交码 EHLC/PC.然后分析了 EHLC/PC码字的性能 ,并与 EQC/PC作了比较 .相比之下 ,前者的互相关性能略有下降 ,但码字容量大大增加 .因此 ,EHL C/PC适合于用户数较多的 OCDMA系统 An extended hyperbolic linear congruential (EHLC) is constructed and its code performance is analyzed. Using the code as a pseudo-random sequence of time-spreading and a prime-frequency code (PC) as a pseudo-random sequence of wavelength hopping, A new two-dimensional optical orthogonal code, EHLC / PC, then analyzes the performance of the EHLC / PC codeword and compares it with that of EQC / PC. In contrast, the cross-correlation performance of the former decreases slightly, Therefore, EHL C / PC is suitable for OCDMA system with large number of users