基于正交全补码CDMA系统的多径信号接收技术

Multi-path signal reception techniques of the CDMA system based on orthogonal complementary codes

结合正交全补码编码原理,阐述了基于正交全补码CDMA系统不使用RAKE接收机,而采用自适应递归滤波器接收机的多径信号接收技术。文中给出了多径信号接收机的结构及工作原理。计算机仿真结果表明所研究的系统比使用Gold码和m序列的常规CDMA系统误码率性能好,认为基于正交全补码CDMA系统的多径信号接收技术在无线信道(特别是多径信道)中具有一定的可行性和优势。

Combined with the principles of orthogonal complementary codes and based on orthogoned complementary codes CDMA system the multi-path signal reception techniques that adopted an adaptive recursive filter but not a RAKE receiver are described in this paper, The structure and working principles of multi-path signal receiver are depicted. The simulation results show that the performanee of the bit error rate is better than the performance of other conventional CDMA system that used Gold codes and m sequences. It deems that multi-path signal reception technique of a CDMA system based on orthogonal complementary codes is feasible and preponderant in wireless communication field, especially in multi-path channel.