CAJ | 학술논문

由于在第三代移动通信系统CDMA中传输的信号带宽较宽,许多复杂的多径无线信号存在于该系统中,导致通信的质量受到影响。RAKE接收技术作为CDMA系统中重要的能够克服多径衰落的分集接收技术,能够在时间上分辨出来自不同方向的多径无线信号,并且能够将分辨出来的多径信号分别进行延时和相位校正、使之复合成加强的信号。文中在分析RAKE接收技术原理和应用的基础上,通过SystemView仿真软件仿真实现了系统中信号的调制解调和接收,并结合其原理对仿真结果进行分析,得出以下结论：通过仿真图的比较,在多径信道中,RAKE接收机得到的信号优于常规方法恢复出的信号。
유우재제삼대이동통신계통CDMA중전수적신호대관교관,허다복잡적다경무선신호존재우해계통중,도치통신적질량수도영향。RAKE접수기술작위CDMA계통중중요적능구극복다경쇠락적분집접수기술,능구재시간상분변출래자불동방향적다경무선신호,병차능구장분변출래적다경신호분별진행연시화상위교정、사지복합성가강적신호。문중재분석RAKE접수기술원리화응용적기출상,통과SystemView방진연건방진실현료계통중신호적조제해조화접수,병결합기원리대방진결과진행분석,득출이하결론：통과방진도적비교,재다경신도중,RAKE접수궤득도적신호우우상규방법회복출적신호。
Due to the wider bandwidth of the signal transmitted in the third generation mobile communication system of CDMA, exist many complex multipath radio signals,influencing the communication quality. RAKE receiving technology as an important diversity re-ceiving technology in the CDMA system can overcome the multipath fading,can in time tell a multipath wireless signals from different di-rections,and can conduct time delay and phase correction for the multipath signals which are composite to strengthen the signal. On the basis of analyzing the RAKE reception technology principle and application,has realized the RAKE reception through the SystemView simulation software simulation,and unifies its principle to carry on the analysis to the simulation result. Get the conclusions that compari-son of the simulation map,RAKE reception signal is better than the one-path ones in multipath fading channel.