adaptive antenna array 中文意思是什麼
adaptive antenna array
解釋
自適應天線陣列-
Realization of adaptive antenna array simulation system using matlab
實現自適應天線陣模擬系統 -
Optimum beamforming algorithm for pre - fft ofdm adaptive antenna array
自適應天線陣的最佳波束成形演算法 -
This paper analyze circinal array antenna and establish its input and output signal module. adaptive algorithm is the heart of smart antenna
從一定意義上來說， tddcdma系統就是基於智能天線來設計的。 -
At first, the author generally introduce the basal conception and theory, then discuss the existed optimal criterion and adaptive beamforming algorithm. the research of smart antenna at present is usually about theory discussion, and the theory analyzing object is usually linear array antenna, but td - scdma adopt circinal array antenna
該部分先簡要介紹了智能天線的基本概念和原理，包括智能天線的工作原理、分類、主要功能、研究內容與發展動態；然後闡述了目前存在的智能天線最優權準則和自適應演算法及其存在的問題。 -
In addition to the conventional techniques such as low sidelobe antennas and displaced phased center antenna ( dpca ), there has been great interest in space - time adaptive processing ( stap ) because it can suppress clutter effectively and improve the detection performance of airborne phased array radar evidently
除了採用低副瓣天線、偏置天線相位中心（ dpca ）等傳統雜波抑制技術，能夠有效提高機載相控陣雷達地雜波抑制能力和動目標檢測性能的空時二維自適應處理（ stap ）受到了廣泛關注。 -
Smart antenna has been widely researched in communication and signal processing, the adaptive beamforming algorithm is the key technique of smart antenna. it could adaptively steer the array directional pattern to form the main narrow beams with high gain in the direction of the users " signals while deeply nulling the interference signals. it is an effective way to realize the optimal receiving of the interesting signals
智能天線技術是目前通信和信號處理等領域的研究熱點，自適應波束形成演算法的研究是智能天線的一個關鍵技術，它能夠自適應地控制天線陣方向圖在用戶信號方向產生高增益窄波束，在干擾信號方向產生較深的零陷，是實現用戶信號最佳接收的有效方法。 -
This dissertation is focused on the study of adaptive digital beam forming ( dbf ), two - dim spectrum estimation and the determination of the highness of the object. main work include : 1 a method of adaptive dbf in received antenna array
本文圍繞著自適應接收波束形成、時-空二維譜估計和對目標高度判定等方面進行研究，主要研究工作包括以下幾個方面： 1討論了在接收陣列天線中，自適應數字波束形成（ dbf ）的方法，引入了采樣梯度矩陣演算法。 -
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。 -
Digital beam forming ( dbf ) is a kind of new technique which based on the antenna beam forming and the well - developed digit signal processing. the technique should convenient obtains high resolution and low sub beam by sufficiently utilizing of the space message received by array antenna. and make the technology of beam scanning, self - calibrating and adaptive beam should be realized easily
數字波束形成（ dbf ）是在天線波束形成的基礎上，引入先進的數字信號處理方法后建立起來的一門新技術，這種技術可以充分利用陣列天線檢測到的空間信息，並易於獲得超解析度和低副瓣，實現波束掃描，自校準和自適應波束形成等。 -
This paper researches the integrating application of adaptive antenna array technology, spread - spectrum communication technology and transform - domain filter technology in shortwave communication area, basing on the background of improving on the shortwave communication equipments being used in chinese army, and all the key techniques mentioned above are implemented in a single fpga chip
本文以改造我軍現役短波通信設備為背景，研究了自適應天線陣技術、擴頻通信技術、變換域濾波技術等多種現代數字信號處理技術在短波通信中的綜合應用，並以單片超大規模fpga晶元為硬體處理平臺，對系統中的關鍵技術進行了設計與實現。 -
Linear array and circular array are the two commonest types in adaptive antenna arrays
線形陣列和圓形陣列是自適應天線中最常見的兩種陣列。 -
Focused on resolving this problem, a new mac protocol dedicated to well utilize the advances of adaptive antenna array ( a type of smart antenna ) is proposed
三、為了解決上述問題，本文設計了一種新的旨在進一步挖掘自適應天線陣（智能天線的一種）優點的mac協議。 -
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。 -
Adaptive antenna array technology based on lms ( least mean square ) algorithm is discussed. and lms algorithm based on floating point format in implemented successfully using the high - performance structure and the new floating point format
闡述了基於lms演算法的自適應天線陣技術，基於論文提出的高效結構及浮點格式在fpga上成功實現了浮點lms演算法。 -
Phased array radar is a detective system with multiple function, high reliability and adaptive ability, spatially the rapid scan and beam shape change characteristic of phased array antenna made its application more and more abroad
相控陣雷達是一種具有多功能、高可靠性和自適應能力的探測系統，尤其是相控陣天線所具有的波束快速掃描能力和波束形狀快速變化能力等優點，使得相控陣雷達得到了越來越廣泛的應用。 -
Performance analysis of phase shifter error of adaptive array antenna for satellite ground - level station
自適應陣列天線移相器的誤差對衛星地面站性能影響分析 -
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
數字波束形成（ dbf ）技術可顯著提高陣列天線的性能，這些性能包括：快速自適應波束置零、超低副瓣、密集多波束、自適應空時處理、高分辨測向和大容量有限帶寬通信等等。 -
We highlight the key points of this dissertation at the end of this charter. in chapter 2, a modified projection transformation method is presented, which utilizes preliminary estimation of interference doa. it is demonstrated that the side lobe performance of adapted antenna patterns can be significantly improved with this method and increased convergence rate of adaptive algorithm when the array manifold is not known exactly
針對投影預變換在大信噪比時性能下降的缺點，提出了一種改進的基於投影預變換自適應波束形成演算法，通過對陣列協方差矩陣進行降維處理，既可抑制擾動誤差又可降低運算量，增強陣列的sinr輸出，具有良好的波束合成性能和較快收斂速度。 -
Second, both the optimized beamforrnkig for antenna array and constant module algorithm are explored. we deeply study the performance of adaptive array under wireless multi - path environment
其次，分析了天線陣列最優波束形成技術和恆模演算法，深入研究了無線多徑環境下自適應陣列的性能。 -
In mobile communication, the multi - path of channel brines the inter - symbol interference ( isi ) which cna make the ber of system larger. a technology called adaptive equalizer combined with adaptive array antenna is researched. this technology is used in the base station to restrain isi, and it is realized through landscape orientation filter, whose weight vectors are formed by rls algorithm. the result of computer simulation showe that the ber performance of system is good enough to ensure the requirement of communication
在移動無線通信中，由於傳輸通道的多徑性質，會在接收端引起碼間干擾，使系統誤碼率變大，結合智能天線系統研究了一種自適應均衡技術，在基站一端使用，用來抑制碼間干擾，它通過橫向濾波器來實現，通過rls演算法自適應地產生加權因子.計算機模擬的結果可以證明，使用無衡技術后，系統的誤碼性能可能滿足通信需要
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