omnidirectional antennas中文是什么意思

發(fā)音:

中文翻譯
造句

[電訊] 全向天線

antennas 天線(18類)
omnidirectional adj. 【無線電】全向的，無定向的。
andrew antennas 安德魯天線公司
antennas and accessories 天線與配件
antennas for communications 通信天線公司
orthogonal antennas 正交天線
plastic antennas 塑料天線
radar antennas 雷達(dá)天線
smart antennas 智能天線
spaced antennas 分集式天線
surveillance antennas 監(jiān)測天線
intensity， omnidirectional 總強度
omnidirectional aerial 全向輻射天線; 全向天線
omnidirectional ante 全向天線
omnidirectional antenna 多向性天線; 非定向天線; 全方向性天線; 全向天線
omnidirectional beacon 全向式無線電指向標(biāo)
omnidirectional characteristic 各向相同特性
omnidirectional collector 全向收集器
omnidirectional coverage 全向覆蓋
omnidirectional effect 全向效應(yīng)
omnidirectional hydrophone 多向性潛水微音器; 全向水平檢波器
omnidirectional intensity 全方向強度; 總強度
omnidirectional light 全向燈光
omnidirectional lighting 全向燈光設(shè)備
omnidirectional loudspeaker 全向揚聲器

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例句與用法

The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering . the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control
本文提出的定向路由協(xié)議ds_dsr是基于對現(xiàn)有協(xié)議dsr的改進(jìn)下實現(xiàn)的，通過定向鄰節(jié)點路由表、定向源路由和定向搜索來完成路由發(fā)現(xiàn)與維護(hù)。研究發(fā)現(xiàn)，定向天線的應(yīng)用，相比全向天線可明顯提高網(wǎng)絡(luò)的總的吞吐量，減少信道干擾、多址干擾，提高信干噪比，且由于定向天線的高增益可實現(xiàn)較遠(yuǎn)距離、較少跳數(shù)的通信，減少了路由發(fā)現(xiàn)時間，這樣大大減小了傳輸時延，網(wǎng)絡(luò)的整體性能得到了不同程度的提高，同時部分地解決安全問題，通過功率控制還可較容易的實現(xiàn)節(jié)能的目的。
Previous research on the ad hoc network almost aim at omnidirectional antenna of all receivers and transmitters, or as a default attribution . in my thesis, firstly i describe the advantages of the directional antenna at many aspects which including spatial division multiple access ( sdma ), the antenna gain, anti-interference etc . and analyze the possibility about the directional antenna used for the ad hoc networks, secondly i study its multiple access and routine protocols using the directional antenna . and compare the protocol difference and network " performance between omnidirectional and directional antenna in particular environment
首先闡述了定向天線在網(wǎng)絡(luò)空分復(fù)用(sdma)、天線增益、抗干擾等方面的的優(yōu)勢，分析了定向天線用于移動自組網(wǎng)的可行性，接著重點研究了基于定向天線的多址接入?yún)f(xié)議和路由協(xié)議，分析了與全向天線在組網(wǎng)和協(xié)議實現(xiàn)中的異同點和優(yōu)缺點，并對特定的環(huán)境下的網(wǎng)絡(luò)性能作了對比。

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