Multiple beam - forming based on crcb method 方法的多波束形成
An analysis on improving mobile communication capability by using multiple beam smart antenna 多波束智能天線對(duì)改善移動(dòng)通信性能的分析
Colourless optical glass test methods - test method by multiple beam spherical interference for optical homogeneity 光學(xué)均勻性多光束球面干涉測(cè)試方法
The multiple beam sonar system for terrain survey has met the system ' s requirement via the results of pool static experiments 通過(guò)水池的初步靜態(tài)實(shí)驗(yàn),我們研制的多波束地形探測(cè)聲納系統(tǒng)已經(jīng)達(dá)到了了系統(tǒng)的設(shè)計(jì)要求。
In this thesis , we introduce and validate that the uniformity of the distribution of light intensity on slm could be improved availably utilizing multiple beam 本文提出并驗(yàn)證了通過(guò)多光束并束可以有效地改善激光束對(duì)slm光照的均勻性。
Testing of materials for semiconductor technology ; measurement of the geometric dimensions of semiconductor slices ; determination of flatness deviation of polished slices by means of the multiple beam interference 半導(dǎo)體工藝材料的檢驗(yàn).第3部分:半導(dǎo)體切片幾何尺寸的
At last , we discussed the spillover and illumination level . with experiments of single beam and multiple beam lens antenna , we got results that their specifications achieved the project goals 在此基礎(chǔ)上,設(shè)計(jì)了多波束點(diǎn)聚焦透鏡天線,并對(duì)設(shè)計(jì)的多波束聚焦透鏡天線進(jìn)行仿真和試驗(yàn)。
Multiple beam focusing horn lens antenna is an important part of interferometer . multiple beam lens antenna ’ s designing and measurement are crux because antenna ’ s far - field focusing ability is used to judge interferometer ’ s capability 多波束聚焦透鏡天線是掃頻式干涉儀診斷技術(shù)的重要部件,它們的性能直接關(guān)系到干涉儀系統(tǒng)指標(biāo)的優(yōu)劣,因此對(duì)多波束聚焦透鏡天線的設(shè)計(jì)和測(cè)量也很關(guān)鍵。
Portable multiple beam sonar system is mainly used to survey the underwater terrain of huge reservoir . firstly , the thesis introduces the index of performance . secondly , it explains the ranging principle of sonar system , and simulates the processing procedure on computer , gives the beam pattern 本文首先介紹了地形聲吶的設(shè)計(jì)指標(biāo),然后敘述了多波束地形聲吶的測(cè)距原理,并對(duì)具體的實(shí)現(xiàn)過(guò)程進(jìn)行了計(jì)算機(jī)仿真,給出了定向波束圖案。
The technology of digital beamforming ( dbf ) can dramatically increase array antenna performances . these performances include fast adaptive pattern nulling , ultra - low sidelobes , closely spaced multiple beams , adaptive space - time processing , high resolution direction fiding ( df ) and increased capacity for band - limited communications systems 數(shù)字波束形成( dbf )技術(shù)可顯著提高陣列天線的性能,這些性能包括:快速自適應(yīng)波束置零、超低副瓣、密集多波束、自適應(yīng)空時(shí)處理、高分辨測(cè)向和大容量有限帶寬通信等等。