总结了线性、二次和双曲等有限域内的代数同余运算在光码分多址系统中的应用 ,将代数同余码分为三类 :跳频码、扩时码和跳频扩时码 ,并给出它们的构造公式。提出了一种同时采用这三类编码分别用以提供不同类型用户服务的二维光码分多址方案 ,该系统方案尤其适合于大量用户需要常规服务 ,而少部分用户需要高速或高服务质量 (QoS)服务的情况 ,具有对速率和服务质量的强适应能力。为了证明该系统方案的可行性 ,首先证明了三种码字的互相关常数 ,然后推导了达到各种互相关值的概率 ,最后得出混合系统中不同类型干扰对系统误码率的影响 ,并进行了数值分析与讨论。 The applications of algebraic congruence arithmetic such as linear, quadratic and hyperbolic finite fields in optical code division multiple access systems are summarized. The algebraic congruence codes are divided into three categories: hopping codes, spreading codes and frequency hopping Code, and given their construction formula. A two-dimensional optical code division multiple access (CDMA) scheme for simultaneously using these three kinds of codes to provide different types of user services is proposed. The scheme is particularly suitable for a large number of users who need regular services, while a small number of users need high speed or high quality of service (QoS) service, with strong adaptability to rate and quality of service. In order to prove the feasibility of the scheme, the cross-correlation constants of the three kinds of codewords are firstly proved, and then the probability of reaching the cross-correlation values ​​is deduced. Finally, the influence of different types of interferences on the bit error rate of the hybrid system is obtained. And carried out numerical analysis and discussion.