解放军理工大学学报(自然科学版)
解放軍理工大學學報(自然科學版)
해방군리공대학학보(자연과학판)
JOURNAL OF PLA UNIVERSITY OF SCIENCE AND TECHNOLOGY(NATURAL SCIENCE EDITION)
2014年
1期
7-11
,共5页
人工鱼群算法%MUSIC算法%文化算法%四阶累积量
人工魚群算法%MUSIC算法%文化算法%四階纍積量
인공어군산법%MUSIC산법%문화산법%사계루적량
artificial fish school algorithm%MUSIC algorithm%cultural algorithm%fourth order cumulate
针对现有的测向算法测相干信号源会损失天线阵列孔径的问题,在引入广义导向矢量和广义导向矩阵的基础上,建立了一种通用的阵列数据模型,提出了一种基于四阶累积量的广义MUSIC测向算法。为求解所提的广义MUSIC测向算法,在文化算法中使用人工鱼群进化机制,引入了一种多维搜索的文化鱼群算法。仿真结果证明了所设计的测向算法在不损失四阶累积量所扩展阵列孔径的情形下,可有效测相干信源与独立信源的方向,与现有一些经典算法相比,所提算法有较大的优势和较广的应用范围。
針對現有的測嚮算法測相榦信號源會損失天線陣列孔徑的問題,在引入廣義導嚮矢量和廣義導嚮矩陣的基礎上,建立瞭一種通用的陣列數據模型,提齣瞭一種基于四階纍積量的廣義MUSIC測嚮算法。為求解所提的廣義MUSIC測嚮算法,在文化算法中使用人工魚群進化機製,引入瞭一種多維搜索的文化魚群算法。倣真結果證明瞭所設計的測嚮算法在不損失四階纍積量所擴展陣列孔徑的情形下,可有效測相榦信源與獨立信源的方嚮,與現有一些經典算法相比,所提算法有較大的優勢和較廣的應用範圍。
침대현유적측향산법측상간신호원회손실천선진렬공경적문제,재인입엄의도향시량화엄의도향구진적기출상,건립료일충통용적진렬수거모형,제출료일충기우사계루적량적엄의MUSIC측향산법。위구해소제적엄의MUSIC측향산법,재문화산법중사용인공어군진화궤제,인입료일충다유수색적문화어군산법。방진결과증명료소설계적측향산법재불손실사계루적량소확전진렬공경적정형하,가유효측상간신원여독립신원적방향,여현유일사경전산법상비,소제산법유교대적우세화교엄적응용범위。
To resolve the problem of array aperture loss in coherent signal direction-of-arrival estimation, a general-ized array data model was constructed and a generalized MUSIC algorithm based on generalized steering vectors, steering matrix and fourth order cumulate respectively was proposed for direction finding. In search of the optimal values of cost function of GMUSIC, a cultural fish school ( CFS) algorithm was introduced based on cultural algo-rithm and fish school algorithm. Simulations results proved that the proposed algorithm can find directions of coher-ent sources and independent sources without loss of the array aperture extended by fourth order cumulates, and its performance and application domain is superior to the previous classic algorithms.