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鱼踪鸟迹实宝山——怀念恩师茗山老法师
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作者 觉平 《法音》 北大核心 2001年第7期14-16,共3页
关键词 焦山佛学院 鱼踪 茗山法师 鸟迹 宝山
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A novel estimation algorithm for torpedo tracking in undersea environment 被引量:1
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作者 D.V.A.N.RAVI KUMAR S.KOTESWARA RAO K.PADMA RAJU 《Journal of Central South University》 SCIE EI CAS CSCD 2019年第3期673-683,共11页
A novel estimation algorithm is introduced to handle the popular undersea problem called torpedo tracking with angle-only measurements with a better approach compared to the existing filters. The new algorithm produce... A novel estimation algorithm is introduced to handle the popular undersea problem called torpedo tracking with angle-only measurements with a better approach compared to the existing filters. The new algorithm produces a better estimate from the outputs produced by the traditional nonlinear approaches with the assistance of simple noise minimizers like maximum likelihood filter or any other algorithm which belongs to their family. The introduced method is extended to the higher version in two ways. The first approach extracts a better estimate and covariance by enhancing the count of the intermediate filters, while the second approach accepts more inputs so as to attain improved performance without enhancement of the intermediate filter count. The ideal choice of the placement of towed array sensors to improve the performance of the proposed method further is suggested as the one where the line of sight and the towed array are perpendicular. The results could get even better by moving the ownship in the direction of reducing range. All the results are verified in the MATLAB environment. 展开更多
关键词 estimation algorithm torpedo tracking angle-only measurements line of sight maximum likelihood filter
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歌唱暑海
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作者 洪班海 《中国水产》 1959年第12期5-5,共1页
暑海前夕备战忙,人拥网具海滩上,千军万马齐闹海,龙宫难把鱼虾藏。旭日东升万里红,碧海帆影舞长空,海上英雄抢暑色,船似穿梭追鱼踪。
关键词 鱼踪 焦原
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情感源于渔村——安娥与《渔光曲》主题歌
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作者 葛玉广 《党史纵横》 1993年第9期35-35,共1页
1934年蔡楚生编导的电影《渔光曲》,在1935年2月莫斯科国际电影节上获得了”荣誉奖”,成为我国第一部获得国际荣誉的影片.影片中的主题歌,当时成为流行歌曲之一.“……轻撒网,紧拉绳,烟雾里辛苦等鱼踪!鱼儿难捕租税重,捕鱼人儿世世穷…... 1934年蔡楚生编导的电影《渔光曲》,在1935年2月莫斯科国际电影节上获得了”荣誉奖”,成为我国第一部获得国际荣誉的影片.影片中的主题歌,当时成为流行歌曲之一.“……轻撒网,紧拉绳,烟雾里辛苦等鱼踪!鱼儿难捕租税重,捕鱼人儿世世穷……天已明,力已尽,眼望着渔村路万重;腰已酸,手已肿,捕得了鱼儿腹内空!”这首主题歌的作者就是一位与大海、与渔民有着深厚感情的知识女性.我国著名的剧作家、诗人——安娥. 展开更多
关键词 渔光曲 安娥 鱼踪 知识女性 腹内 拉绳 张式 就是你 粉女 黑石礁
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王人美,充满坎坷的“野性”明星
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作者 孙孟英 《航空港》 2011年第8期88-89,共2页
王人美是上海滩上一个非常富有传奇色彩的两栖明星,她的歌声以甜美、清脆曾在上海风靡一时,她在电影中所扮演的电影角色以活泼、野性曾在影迷中红极一时而使人青睐不已。但是,王人美在人生的旅途生涯中却充满了悲剧与磨难。
关键词 王人美 使人 渔光曲 鱼踪 金焰 黎莉莉 驾鹤西去 黎锦晖 金城大戏院 中所
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毕拉河赋
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作者 李金田 《草原》 2015年第8期86-86,共1页
毕拉河者,山水之乡,形胜之地也。此间河湖丰饶,尤多鱼鲜之产;山岭幽处,不逊桃源之静;丛林内外,时见山花之艳;湖畔云端,常闻禽鸟之声。山清水碧,多可玩可赏之景;民朴俗淳,少熙来攘往之喧;鸥鸟栖此而忘饥,游人至此而忘返。
关键词 毕拉河 达尔 河湖 大者 石海 如水 月亮岛 鱼踪 四面环山 相思树
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An empirical movement model for sixgill sharks in Puget Sound: Combining observed and unobserved behavior
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《Current Zoology》 SCIE CAS CSCD 2012年第1期103-115,共13页
Understanding the movement of animals is fundamental to population and community ecology. Historically, it has been difficult to quantify movement patterns of most fishes, but technological advances in acoustic teleme... Understanding the movement of animals is fundamental to population and community ecology. Historically, it has been difficult to quantify movement patterns of most fishes, but technological advances in acoustic telemetry have increased our abilities to monitor their movement. In this study, we combined small-scale active acoustic tracking with large-scale passive acoustic monitoring to develop an empirical movement model for sixgill sharks in Puget Sound, WA, USA. We began by testing whether a correlated random walk model described the daily movement of sixgills; however, the model failed to capture home-ranging behavior. We added this behavior and used the resultant model (a biased random walk model) to determine whether daily movement patterns are able to explain large-scale seasonal movement. The daily model did not explain the larger-scale pat- terns of movement observed in the passive monitoring data. In order to create the large-scale patterns, sixgills must have per- formed behaviors (large, fast directed movements) that were unobserved during small-scale active tracking. In addition, seasonal shifts in location were not captured by the dally model. We added these 'unobserved' behaviors to the model and were able to capture large-scale seasonal movement of sixgill sharks over 150 days. The development of empirical models of movement al- lows researchers to develop hypotheses and test mechanisms responsible for a species movement behavior and spatial distribution. This knowledge will increase our ability to successfully manage species of concern [Current Zoology 58 (1): 103-115, 2012]. 展开更多
关键词 Hexanchus griseus MOVEMENT Correlated random walk Biased random walk DISPLACEMENT Movement model
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