陣列天線系統 的英文怎麼說
中文拼音 [zhènliètiānxiànxìtǒng]
陣列天線系統
英文
array antenna system- 陣 : Ⅰ名詞1 (作戰隊伍的行列或組合方式) battle array [formation]: 布陣 deploy the troops in battle fo...
- 列 : Ⅰ動1 (排列) arrange; form a line; line up 2 (安排到某類事物之中) list; enter in a list Ⅱ名詞1...
- 線 : 名詞1 (用絲、棉、金屬等製成的細長的東西) thread; string; wire 2 [數學] (一個點任意移動所構成的...
- 系 : 系動詞(打結; 扣) tie; fasten; do up; button up
- 統 : Ⅰ名詞1 (事物間連續的關系) interconnected system 2 (衣服等的筒狀部分) any tube shaped part of ...
- 陣列 : [統計學] array陣列處理機 array processor; 陣列印表機 array printer; 陣列雷達 [電學] array radar
- 系統 : 1. (按一定關系組成的同類事物) system 2. (有條理的;有系統的) systematic
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In this dissertation, switched parasitic pattern diversity yagi - uda antenna array used for the base station has been illustrated after the introduction of mimo technologies and the analysis of the base station antenna design for next generation of wireless communication
本文在介紹mimo技術和分析新一代移動通信中基站天線的設計思路的基礎上,給出了一種適用於mimo系統基站、具有角度分集功能的開關八木天線陣列。While carrying out the scheme, at first, the basic theory of antenna, array antenna and electromagnetic absorption, the performance parameter of antenna and parabolic antenna are deeply researched. in conformity, the characteristic and calculation of aperture field and near - to - far - field transformation for radiation pattern are detailed analyzed. second, the factors such as, the amount of the antenna elements, mutual coupling between each element, ground and the buildings on earth ' s surface, which affect the performance of array antennas ’ resultant field are stressed discussed
在系統實現過程中,課題首先從天線、陣列天線,以及電磁場計算方法的基本理論著手,分析了天線與拋物面天線的各項性能參數,以及天線的口面場和近-遠區輻射場的特點和計算;進而,更加深入的討論和研究影響天線陣列合成場強的各項因素,包括系統所使用的天線單元個數對陣列合成場的影響、天線單元之間由於互耦造成的影響、傳播過程中地面和/或地面建築物的影響等。This paper begins with an overview of the fundamentals of adaptive antennas. the correspondence between a spatial filter and the fir filter is illustrated, and the spatial filter characteristic of adaptive antennas is investigated by dmi and ls - drmtcma algorithms. the discrete - time transmission model of synchronous cdma systems with antenna arrays is also developed
本文首先對自適應天線的基本原理進行了簡要介紹,建立了陣列接收的同步cdma系統離散時間傳播模型,並論述了空域濾波和時域fir濾波器的類比性,用dmi和ls ? drmtcam演算法模擬了自適應天線空間濾波性能。Analyze the linear dipole array with uniform element spacing using the method of moments ( mom ), derive the analytical expression for the recovered signal with the direct data domain method, demonstrate the effect of the mutual coupling on the performance of the antenna array by examples, the degradation of the system caused by the mutual coupling is simulated and analyzed in two different electromagnetic environments such as the weak and strong interference
用矩量法計算了幾個信號同時照射時對稱陣子均勻直線陣的電流分佈,用直接數據域演算法推導了此接收陣列的恢復期望信號的表達式,舉例說明了互耦對陣列天線性能的影響,數值模擬了在弱干擾和強干擾下,互耦造成系統性能下降的情況並分析了原因。Partial adaptive digital beam forming has the potential for improved time - energy management, and reduced life - cycle costs, and reduced complexity of adbf system, especially in large array antenna used thousands of sensors. this dissertation was part of the national ' s array radar project
對于大型空時自適應陣列天線,採用部分自適應技術( padbf ) ,可以降低陣列自適應演算法的復雜性,產生較快的自適應響應,同時也可極大的降低系統硬體成本。The system uses the permanent magnet synchronous machine as the driver motor based on the idea of polygonal flux linkage locus and the permanent magnet brush - less motor is as the momentum balance motor by means of speed and current loop in order to track driver motor precisely and rapidly. the harmonious control of driver motor and balance motor is realized by making full use of the dsp hardware resource and complicated programmable logic device. the software design is composed of c and assembly language to realize motor control arithmetic of polygonal flux linkage locus
衛星天線伺服控制系統以正弦波永磁同步電機作為驅動電機,採用多邊形磁鏈軌跡法(電壓空間矢量法)的控制策略;動量平衡電機採用永磁無刷直流電機,通過電流環、速度環達到快速、精確跟蹤驅動電機的目的,確保了衛星姿態恆定;設計方案中充分利用了dsp硬體資源和復雜邏輯陣列實現了驅動電機和平衡電機的協調控制,並通過c語言和匯編語言的混合編程實現了電機的多邊形磁鏈軌跡控制演算法。Firstly, the work principle of staring laser detection optical system is introduced, and the relation between optical antenna ’ s amount and fov in laser warning system of optical antenna array is deduced
首先闡述了凝視型激光輻射探測光學系統的工作原理,推導了光學天線陣列激光告警系統中光學窗口數與光學單元視場角應滿足的關系。The smart antenna array calibration is one of the key techniques which are able to improve system performance
智能天線陣列校正技術是保證wcdma系統性能的關鍵技術之一。In the first part, performance comparison of two different smart antenna systems is analyzed in uplink ; the inherent advantages and disadvantages are evaluated with channel complexity considered
一是針對上行研究了兩種不同智能天線陣列系統的應用性能比較,考慮了通道環境復雜性的影響,綜合評估這兩個不同陣列系統的優缺點。A new topology of antenna array named arcuate array is proposed. as the analysis shows, the arcuate array has its particular advantages, and the linear array and circular array can be unified into arcuate array family
接著提出了弧形智能天線陣列結構,分析了弧形陣列的獨特優點,並把直線陣和圓陣統一到弧形陣列結構體系中。Thus the main and auxiliary polarization radars form a side lobe canceller system. based on the modeling of this system, an anti - jamming filter algorithm in the polarization - spatial domain is brought forward
針對接收全極化雷達,在其旁邊放置全向雙極化正交陣列天線與雷達構成旁瓣對消系統,並根據系統模型提出了極化域-空域聯合濾波抗干擾演算法。Thirdly, the dissertation presents an anti - interference technology of adaptive array for non - spread spectrum signal using a pilot signal, by which a non - spread spectrum system can use the decoupled 2 - d rake receiver and the original non - spread spectrum system need not be modified
第三,提出了採用擴頻信號作為導引信號的非擴頻信號自適應陣列天線抗干擾方法。該方法使得非擴頻系統可以採用解耦合空時2 - drake接收機,而且不改變原非擴頻系統。Additionally, the mutual coupling characteristic of adaptive antennas is analyzed by mom and equivalent network method, and the data model is built considering the mutual coupling of antennas arrays. the effect of mutual coupling on music algorithm is also studied, and we get a method to find the mutual coupling matrix based on music algorithm. finally, the effects of mutual coupling and rf channel imbalances on td - scdma are investigated, which will provide a reference for system design
最後在矢量通道模型分析基礎上,深入地研究了td ? scdma系統中自適應天線與聯合檢測相結合技術,從系統矩陣和誤碼率模擬兩方面考察了自適應天線對聯合檢測性能的改善,並分析了陣列互耦和射頻通道校準誤差對td ? scdma系統上行性能的影響,為系統設計提供了依據。Downlink beamforming for mobile communication systems based on different antenna arrays
基於不同天線陣列的移動通信系統下行波束設計Based on plenty of existing research findings at home and abroad, this thesis studies several online calibration algorithms with an auxiliary signal source for the wcdma - based adaptive antenna array according to their practical application
本論文在國內外現有工作基礎上,根據工程實際,綜合研究了wcdma系統的天線陣列有源校正演算法。With the development of radar technology, the intrinsic defects of traditional antenna array greatly restrict the system performance ; therefore research on the compact receiving array of hfswr becomes urgency
隨著雷達技術的發展,傳統大型陣列天線固有的缺點已經成為了制約系統性能的一個瓶頸。因此亟需開展高頻雷達小型化陣列天線的研究工作。In prototype system, a l - shaped non - uniform linear array with 5 elements is utilized to receive spatial signal with carrier frequency among 2 - 18ghz. the entire frequency band is decomposed into 1ghz sub - bands and then is mixed to 1ghz base band. the base band output of each antenna is sent through a synchronous 250mhz undersampling channels
在本實驗系統中,我們設計了一個5陣元的l型非均勻陣列天線,將的頻段劃分成的子頻段,然後將每個子頻段混頻到的處理基帶后再進行的同步欠采樣。One of the convertion technologies of space diversity is antenna array, which is researched and ultilized in 3g and beyond 3g system
空間分集技術的一種傳統的應用技術是通過多天線或天線陣列實現,並在3g , beyond3g等系統中得到研究和應用。A method known as asymptotic waveform evaluation ( awe ) is firstly employed to analyze the array impedances versus the operating frequencies. the input impedances of the array in several different structure are calculated. by using the awe, the calculation time is much smaller than that by using mom
首次將漸進波形估計( awe )技術用於陣列天線的分析,計算了圓環陣列、圓環反射陣列、線形陣列和三角形陣列的輸入導納與頻率的關系曲線,與傳統的矩量法相比,大大地加快了速度。In order to predict source location by using the svm regression, we combine the svm theory & the antenna array module, construct a training data structure ; design a new system module which optimize the train machine by altering different parameter
為了利用支持向量機的函數擬合來預測信源位置,我們將支持向量機理論和陣列天線模型結合在一起,根據兩者的不同特點構造了一個訓練數據結構;並設計了通過改變不同參數對訓練機器進行優化的新的系統模型。分享友人