space-time processing 中文意思是什麼
space-time processing
解釋
時差定位法-
This multi - purpose optical metering system had adopted the twyman - green interferometric system as its center, containing an advanced digital wave surface interferometry and a kind of homodyne interferometer displacement testing method with nanometer - sized capacity. at the same time, many wide - applied metering technology, for example, the diffracted field ( fringe ) measurement, co - focal lens system, optical fiber sensors and 4f ( focal distance ) space filter system which can embody the chief principle of fourier optics well, were combined into it successfully. this instrument can firstly offer and show modern optical testing method in the laboratory for majors of information processing, instrument science, measuring and testing technology and automatic technology
該多功能激光光電實驗系統以泰曼-格林干涉（ twyman - green ）光路作核心，包括先進的數字波面干涉技術和一種基於空間干涉原理的、納米解析度零差干涉儀位移測量方法，同時將多種新穎、工程實用價值高的測量技術和光路如衍射測量、共焦顯微技術、光纖傳感技術以及反映傅立葉光學基本光學原理的4f空間濾波系統也組合進去。 -
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。 -
Z - tranformation augmented fasf algorithm proposed in the dissertation can reduce the search space of integer ambiguity effectively, improve the effiency and real - time processing ability of integer ambiguity resolution ; it is essential to analyse the reliability of integer ambiguity after it was fixed, the ratio test algorithm proposed in the dissertation can reduce the time to fix new integer ambiguity after wrong fixes are detected ; to reduce further the number of epochs required for ambiguity resolution, that the baseline length constraint information which acts as observables is used to do kalman filtering to speed up ambiguity resolution is proposed
本文提出的z變換增強fasf演算法能有效的減小模糊值搜索空間，提高整周模糊值解算的速度和實時性；整周模糊值確定后，需要對整周模糊值的可靠性進行分析，本文提出的比率檢測演算法能有效的減少整周模糊值錯誤確定后整周模糊值二次解算所需要的時間；為了進一步減少整周模糊值解算所需的歷元數目，本文提出把基線長度先驗信息作為觀測量進行卡爾曼濾波輔助整周模糊值求解。 -
Space - time processing for cdma with antenna array is investigated in this paper, which includes space - time channel estimation, beamforming technique, 2d - rake receiver, multiuser detection, space - time multiuser detection and joint estimation
本文研究了天線陣cdma系統中的空時處理技術，主要包括空時通道估計、波束形成技術、空時2d - rake接收機、多用戶檢測、空時多用戶檢測和聯合估計。 -
We discussed the main characteristic parameters of seismic kinesiology and dynamics of mine engineering fracture zone, including relative amplitude, phase time of wave crest, similarity factor, principal frequency band energy, 3 - d space time gradient and coherent coefficient et al., and puts forward the processing method of 3 - d seismic characteristic parameters about denoise - smoothing, generalization, correlation analysis, characteristic transformation ; and presents the method of pattern recognition of mine engineering fracture zone
摘要本文從時間域、頻率域、三維空間域介紹了礦山工程裂隙破碎帶主要的地震運動學、動力學屬性參數，包括相對振幅、波峰相位時間、相似系數、主頻帶能量、二維空間時間梯度和相干系數等，提出了礦山工程裂隙破碎帶三維地震屬性的去噪平滑、歸一化、相關分析、特徵變換的處理方法以及裂隙破碎帶的模式識別原理與方法，並用實例說明了該方法的應用效果。 -
For slow targets whose doppler frequencies fall into clutter doppler band, the performance of frequency domain one - dimension filtering is seriously degraded. in an airborne radar, there is interdependence between the clutter doppler frequency and spatial position. space - time adaptive processing ( stap ) utilizes this interdependence to suppress clutter and get perfect main - lobe and side - lobe clutter suppression
空時自適應處理利用機載雷達地雜波多普勒頻率與地雜波空間位置的耦合性，根據目標和雜波在空間-多普勒頻域二維空間分佈上的差別對雜波進行抑制。 -
In this dissertation, multiuser detection and space - time processing are combined to suppress multiple access interferences and inter - symbol interferences ( isi ) jointly in multipah fading channels with large delay spread
本文組合多用戶檢測和空時處理技術，在大時延擴展的多徑衰落通道條件下，研究多址干擾和符號間串擾的聯合抑制。 -
Using test - bed system, we can validate all methods in this field and evaluate algorithms. in this paper, the implement of the smart antenna test - bed is detailedly discussed. based on this test - bed, the new algorithms of doa estimation and space - time processing are presented and tested effectively using the actual data
論文主要討論了智能天線系統的實現問題，在此基礎上，對波達方向（ doa ）估計演算法和cdma系統空時處理方面的演算法進行了研究，得到了兩種新的doa估計演算法和一種低復雜度空時級聯演算法。 -
With the trend that cdma will be the dominant multi - access scheme in the new generation of wireless communication, how to apply spatial processing in cdma system has been becoming the emphasis of research in smart antenna. a proper method is space - time processing due to the space - time structure of wireless channel. beamforming can be combined with rake to form 2d rake receiver, which can effectively weaken the enhancement of mai in conventional rake receiver. however a more effective method is to use space - time filtering. these two scheme will be discussed and the structure and realization will be presented
碼分多址技術逐漸成為新一代通信系統的主流多址技術，如何在碼分多址系統中引入空域處理以改善系統性能是當前智能天線技術研究的重點之一.考慮到無線通道的時空二維結構特徵，一種合理的實現方式是採用時空處理方法，將波束形成技術與時域分集技術相結合;另一種更有效的方法是在接收端採用時空二維聯合處理，對無線通道進行時空二維均衡 -
3 ) < wp = 12 > using perturbation analysis, the space - correlation loss and the bearing - estimated error for finite - bandwidth incoherently distributed sources are evaluated analytically, respectively. it is disclosed that bandwidth - induced bearing bias increases monotonously with the signal ' s relative bandwidth. when the relative bandwidth is not small enough to be negligible, the spatially - only processing cannot lead to accurate bearing estimate, that is, the joint space and time processing is necessary for high - precision bearing estimation
3 ）利用擾動分析方法，解析評價了有限帶寬引起的非相干分佈源的空間損耗及其對波達方向估計的影響；分析表明，帶寬擾動引起的方向估計偏差隨信號相對帶寬單調增加；當相對帶寬無法忽略時，為了得到高精度的波達方向估計，需要進行聯合空時處理。 -
Baesd on the theory that moving target detectability can be enhanced by joint space - time processing with the application of frequency features and targets " characteristics, we focus our attention on particularies of sonars " target detection using underwater acoustic techniques and vehicle detection using computer vision techniques
本文注重在理論指導下的特殊性研究，即在聯合利用時間信息、空間信息、頻率信息以及目標特徵能夠提高運動目標檢測能力的思想指導下，分別研究了聲納的運動目標檢測和基於計算機視覺的交通車輛檢測。 -
Application of cpld in space - time 2 - d radar signal processing
時空二維雷達信號處理中的復雜可編程邏輯器件 -
An improved finite volume technique and total variation diminish scheme has been presented for solving the numerical problem with complex flow gas and space time processing synchronously, based on analysis of some numerical method for increasing the convergence, precise and strong capture capacity of shock wave
針對高壓sf _ 6斷路器氣流場求解的復雜性和特殊性，在對常用氣流場數值求解方法應用特點分析的基礎上，本文採用改進的有限體積tvd格式進行斷路器氣流場數值求解，提高了解的收斂性、準確性和激波的捕捉能力。 -
Space - time processing technique combines time domain signal processing and spatial signal processing. it can utilize fully the space - time channel characteristic, repair limits of the time domain signal processing and spatial signal processing, and enhance the system capability, overlay area and transmission rate
空時處理技術聯合時域和空域信號處理技術，充分利用無線通道的空時結構特徵，彌補了時域信號處理和空域信號處理二者的局限，能夠提高無線通信系統的容量、覆蓋范圍和傳輸速率。 -
Space - time coding technology is based on multi - elements antenna array and has strong points of both time processing and space processing. it can satisfy the requirements of high data rate transmission in the future radio mobile system without the increase of the transmitting power and the spread of the frequency. and it can greatly improve the quality of communication services and system capacity under fading channels
空時編碼技術是一種利用多天線陣發送和接收的技術，該技術能很好地結合時間處理技術和空間處理技術的特點，能在不增大發射功率和不擴展頻帶的前提下滿足未來無線移動通信對高數據率傳輸的要求，從而全面提高衰落通道的通信質量和通信系統容量。 -
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。 -
This dissertation is outlined as follows. in chapter one, the present studies on multiuser detection and space - time processing in wireless cdma communications are reviewed
全文共分七章：第一章綜述了無線cdma通信系統的多用戶檢測和空時處理的研究現狀。 -
Because there are still some shortcomings in the sub - optimum multiuser detection technology, that the combination of the two - dimensional space - time processing and the multiuser detection can improve the capability of the receiver is expected
鑒于準最優多用戶檢測技術中存在有一些局限性，這里希望以空時二維處理演算法與準最優多用戶檢測技術相結合來改善接收系統的性能。 -
In addition, motion capture data records the motion of a real character, so it is natural that traditional animation techniques such as key - frame, dynamics, kinematics, space - time constraints, and dynamical simulation are closely relative to the processing and analysis of motion capture data
運動捕捉數據記錄的是角色的運動信息，這就決定了對運動數據的分析研究勢必和傳統的角色動畫技術發生關系。這些技術包括關鍵幀動畫，運動學和動力學，時空約束，動態模擬等。 -
Based on the analysis on the characteristics of the sudden water pollution accidents in detail, such as the uncertainty of space - time, the polluted range and the suffered objects, the features of different fiver basins and the unclearness of the main subjects to respond urgently, the concept on the construction of the early - warning and emergency response system is made under the consideration of three parts - the early warning mechanism, the emergency mechanism and the computer - aiding decision system ; for which the hazard resources distinguishing, risk appraisal and the emergency response principles with the relevant organization, classification, monitoring, treatment method etc. are described, and then the requirements of both the processing of the accident simulation and the database design are analyzed as well
在深入分析突發性水污染事故時空、污染范圍和污染對象的不確定性、流域性、應急主體不明確等特點的基礎上，構建突發性水污染事故預警應急系統體系，認為該系統應包括預警機制、應急機制和計算機輔助決策系統三個部分，並詳細闡述危險源辨識、風險評價、應急原則、應急組織機構、應急分級、應急監測、應急處理方法等內容，同時分析了事故模擬的流程和數據庫設計的要求。
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