1) Doubly-selective channel estimation
双选择信道估计
2) blind estimation of frequency-selective fading channels
频率选择性衰落信道盲估计
3) Selectivity Estimating
选择估计
4) channel selection
信道选择
1.
Research on channel selection algorithm in cognitive wireless network
认知无线网络中信道选择算法研究
2.
A novel multiple access protocol, namely channel selection collision avoidance (CSCA) protocol, was proposed for efficient channel sharing in wireless ad hoc networks.
为了有效利用无线Ad Hoc网络中的信道资源,提出了一种多址接入协议,即信道选择冲突避免(CSCA)协议。
3.
An channel selection method based on tolerable noise was put forward, from the image itself future, every channel s maximum watermark amplitude can be obtained while meeting conditions of invisibility as well as combining with human visual system and noise visibility function.
该文提出了一种基于噪声允许的信道选择方案,根据图象自身特点,结合人眼视觉模型和噪声可见性函数,找出了在满足不可见性条件下每个信道可嵌水印的最大强度。
5) selectivity estimation
选择性估计
1.
Research on Selectivity Estimation Method in Spatial Database;
空间数据库中的选择性估计方法研究
2.
With the proof that mutually overlapped rectangles are sharing a common region which is also a rectangle, this paper gives a selectivity estimation technique for 3-way clique intersect .
选择性估计不仅能以非常小的代价给出空间算子结果集大小的近似估计,而且也可以直接用于某些仅需要近似结果的空间查询和空间分析(如数据集间的相关性评价等)处理。
3.
This paper uses MBR buffer area and line segment buffer area of spatial object, according to the characteristics of data set in spatial join and distributed law of characteristic data, putting forward a selectivity estimation method based on point buffer area, which is used in spatial join selectivity estimation of characteristic data.
选择性估计是设计空间数据库查询优化器的基础。
6) doubly selective fading channels
双选择性衰落信道
1.
Then, we proposed a maximum Doppler spread (MDS) estimation algorithm for OFDM systems with the comb-type pilot pattern in doubly selective fading channels (DSFC).
本文介绍正交频分复用系统(OFDM)在双选择性衰落信道中的参数化信道估计以及信道统计量分析等若干问题。
补充资料：三十一祖道信大医禅师《八十八祖道影传赞》
【三十一祖道信大医禅师《八十八祖道影传赞》】
四祖道信大师者。姓司马氏。世居河内。后徙于蕲州广济县。生而超异。幼慕空宗诸解脱门。宛如宿习。既见三祖嗣法。摄心无寐。胁不至席者。盖六十年。隋大业十三载。领徒众抵吉州。值群盗围城。七旬不解。万众惶怖。祖愍之。教念摩诃般若。时贼众望雉堞间。若有神兵。乃相谓曰。城中必有异人。不可攻矣。稍稍引退。唐武德甲申岁。师却返蕲。春住破头山。学侣云臻。一日往黄梅县。路逢女子。携一小儿。骨相奇秀。异乎常童。祖问曰。子何姓。答曰。姓即有不是常姓。祖曰。是何姓。答曰。是佛性。祖曰。汝无姓耶。答曰。性空故无。祖默识其法器。即俾侍者。至其母所。乞令出家。母以夙缘故。殊无难色。遂舍为弟子。以至传法付衣。偈曰。华种有生性。因地华生生。大缘与性合。当生生不生。遂以学徒委之。是为此土四祖。赞曰。少年出家利根捷疾 六十余年胁不至席 学侣云臻何待小儿 以有夙约观者不知
四祖道信大师者。姓司马氏。世居河内。后徙于蕲州广济县。生而超异。幼慕空宗诸解脱门。宛如宿习。既见三祖嗣法。摄心无寐。胁不至席者。盖六十年。隋大业十三载。领徒众抵吉州。值群盗围城。七旬不解。万众惶怖。祖愍之。教念摩诃般若。时贼众望雉堞间。若有神兵。乃相谓曰。城中必有异人。不可攻矣。稍稍引退。唐武德甲申岁。师却返蕲。春住破头山。学侣云臻。一日往黄梅县。路逢女子。携一小儿。骨相奇秀。异乎常童。祖问曰。子何姓。答曰。姓即有不是常姓。祖曰。是何姓。答曰。是佛性。祖曰。汝无姓耶。答曰。性空故无。祖默识其法器。即俾侍者。至其母所。乞令出家。母以夙缘故。殊无难色。遂舍为弟子。以至传法付衣。偈曰。华种有生性。因地华生生。大缘与性合。当生生不生。遂以学徒委之。是为此土四祖。赞曰。少年出家利根捷疾 六十余年胁不至席 学侣云臻何待小儿 以有夙约观者不知
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参考词条