求翻译：本文提出了使用系统仿真分析的可视化软件systemview模拟直接序列扩频系统工作原理，采用相位调制技术将扩频码转换为模拟序列，使其在信道中传输，此外，在信道输出端用相关解调的方法将调制序列解调出来，转换为相应的数字序列，恢复扩频序列。最后，运用直接扩频原理对扩频码进行解扩，得到扩频前的低频率信息码，完成设计的要求。设计当中对接扩后的信码进行再次的处理，使输出信码中存在的竞争和冒险现象减弱甚至消除。是什么意思？

Presented using SystemView simulation visualization software for simulation analysis of direct-sequence spread-spectrum system works using phase modulation technique spreading code converts analog sequence, its transmission channels, in addition, channel output correlation demodulation approach sequence modulation and demodulation, and converted to the appropriate number sequence, the recovery spreading sequence. Finally, using direct spread spectrum theory to despreading PN, low frequency information received before spreading codes, complete design requirements. Design of letter codes that are returned after butt expansion process, satisfy the output code there is a decrease or even eliminate the phenomenon of competition and adventure in.