CAJ | 학술논문

结合项目过程遇到的一个时分多址噪音问题，系统阐释了时分多址噪音发生的机理和常用解决途径，但是这些常用的措施并不能解决该项目的时分多址噪音问题。通过该项目调试实践，发现除了相关音频单元部分采用星形接地外，其他部分模拟地和数字地不进行分割的综合策略，很好的解决了时分多址噪音问题。最后，进一步对混合数字信号系统接地策略的选择进行了总结，以期在混合信号系统设计中能够获得最佳性能。
결합항목과정우도적일개시분다지조음문제，계통천석료시분다지조음발생적궤리화상용해결도경，단시저사상용적조시병불능해결해항목적시분다지조음문제。통과해항목조시실천，발현제료상관음빈단원부분채용성형접지외，기타부분모의지화수자지불진행분할적종합책략，흔호적해결료시분다지조음문제。최후，진일보대혼합수자신호계통접지책략적선택진행료총결，이기재혼합신호계통설계중능구획득최가성능。
According to the matter of TDMA noise in the project process,it is systematically explained the funda-mentals and usual solutions of TDMA noise. Unfortunately,these common measures can’t play a part in our mobile terminal design. With the conscientious researches on our task,a perfect method was found to solve this problem which was that the star ground connection in partial audio circuits and the ground plane design were organically em-ployed. At last,the main measure of ground connection was summarized in mixed signal system in order to obtain the best system performance.