http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
- 中文 을 입력하시려면 zhongwen을 입력하시고 space를누르시면됩니다.
- 北京 을 입력하시려면 beijing을 입력하시고 space를 누르시면 됩니다.
RISS 인기검색어
- 검색키워드
- 저자 : 최경애(Kyoung-Ai Choi) (검색결과 3 건)
- 무료
- 기관 내 무료
- 유료
-
최경애(Choi, Kyoung-Ai) 중국근현대사학회 2015 중국근현대사연구 Vol.67 No.-
The purpose of this study lies in analyzing migration of the Han ethnic and changes of minority regions of china during socialist period. During this period a sharp rise of Han population has occurred in the minority region. This thesis explores that figures, types, characteristics of Han migration into the minority regions during socialist period, and that the minority regions" social both how and what has changed. PRC has established national regional autonomy system(minzu quyu zizhi zhidu) that it was combined ‘national autonomy(minzu zizhi)’ and ‘regional autonomy(quyu zizhi)’ since 1949 in minority regions, and then minority regions was constituted to autonomous minority nationality regions one at a time. A massive influx of Han ethnic in this regions changed to structure that from residential type of a single ethnic to residential type of many ethnic(zaju). Due to Han migration into the minority regions the Han population outnumbered minority nationalities in many areas. The rise of Han population has brought significant changes of political, economic, cultural to social of minority regions. Han ethnic can have more representatives than minority ethnics in minority regions that according to proportion of population can have representatives. Also the massive migration has led to a dual structure of ethnic composition that have contributed to forming a new kind of residential district that the migrated Han ethnic live in their own"s district, minority nationalities also have their own district, and there are serious economic imbalances between the Han district and minority nationalities" district. According to economic logic it also occurred that changes of monority nationalities" use of language and letter, customs and habits has emerged. There are situations that use of chinese language has increased, furthermore traditonal social organization of minority nationalities is becoming sinicized(Hanhua). The political, economical and cultural changes has worsened relative deprivation and anti-Han(fan Han) feeling, that result in national conflict. In conclusion, after an influx of Han ethnic minority regions are becoming significantly sinicized(Hanhua) in all areas of politic, economic and social, this trend would be deepen sill further.
-
-
김태수,최경애 위덕대학교 부설 전자기술연구소 1997 전자기술연구소 논문집 : 위덕대 Vol.1 No.1
멀티패스훼이딩은 이동통신에 있어서 통화품질을 저하시키는 요인이되고 있다. 이에 대한 대책으로 어레이안테나를 이용하여 적응적 지향성 제어에 의한 지연파의 영향을 제거하는 방법이 연구되어 왔다. 본 논문에서는 어레이안테나로부터 공간적으로 샘플링된 수신신호를 DFT를 이용하여 구한 공간주파수를 이용하여 희망파와 간섭파의 도래방향과 SNR을 추정하고, 최적의 안테나 무게 계수를 산출하는 새로운 알고리듬을 제안하였다. 제안한 방법은 종래의 LMS방식과는 달리 참조신호를 필요로 하지 않는 특징을 갖는다. 또한, 간섭파도 희망파와 같은 정보를 포함하고 있는 점에 착안하여, 시스템성능을 향상시키기 위하여 다이버시티합성에 의한 개선방법도 검토되었다. As a strategy for multipath fading in mobile communication, an array antenna using adaptively controlling complex weights of antenna elements such as LMS and CMA algorithm has been studied. In this paper, we propose an algorithm such that arrival angles and signal-to-noise ratio(SNR) for desired and undesired signal waves are estimated by using discrete Fourier Transform(DFT) of signals which are spatially sampled by array of antenna elements. The proposed algorithm can quickly derive the appropriate weights of which properties depend on spatial sampling rather than temporal sampling, and requires no reference signal unlike LMS algorithm. Moreover, considering undesired signal waves contain the same information as desired signal waves, a method to improve efficiency of system by using a directional diversity receiver is investigated.
연관 검색어 추천
이 검색어로 많이 본 자료
활용도 높은 자료
