signal processing antenna 中文意思是什麼
signal processing antenna
解釋
信號處理天線-
In this paper, the signal processing of sum and difference patterns of amplitude dual - plane monopulse radar and the effect of amplitude - plane non - consistency are analyzed from the coordinates relationship of four - horn antenna at length, and its corresponding simulation is verified, which bring convenience to engineering implementation
文中從四喇叭天線的位置坐標關系，詳細分析了雙平面振幅和差式單脈沖雷達信號處理過程以及三通道幅相不一致性的影響，並且進行了相應的模擬，為工程實現帶來了很大的便利。 -
The key technique include nip signal ' s generation, serial port 422 communication, control system data acquisition and processing, stationary wave ratio of antenna, sending and receiving signal ' s attenuation of antenna and so on
其關鍵技術包括nip信號產生， rs - 422串口通信，控制系統各模塊數據採集和處理，機載天線駐波比及收發信號衰減測量等。 -
Smart antenna has two critical tasks, one is to filter the uplink signals, and the other is to form the downlink beam, and we need adaptive algorithm and digital signal processing ( dsp ) technology to fulfill these work. adaptive algorithm is one of the most important technologies of smart antenna, and it determines smart antenna ' s speed to the wanted to signal and the complexity of the circuit of the communication system
自適應演算法是智能天線的核心技術之一，它決定著智能天線對來波信號響應的速率和系統實現電路的復雜程度，系統需要針對各種通信環境來選擇合適的演算法，也可以採用演算法分集的方法來使整個系統工作在最佳狀態。 -
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。 -
The paper includes four sections followed here : the first section studies the modeling of signals of pulse doppler radar seeker, and establishes a radar signal simulation model, including radar emitting signal model, receiving signal model, receiving echo signal model, clutter model, noise model, sum channel directional pattern of antenna model, difference channel directional pattern of antenna model, sheltering model, rcs model, glint noise model, etc. the second section studies signal processing of pulse doppler radar seeker, and establishes radar signal processing mathematical model and data processing mathematical model for simulation, including windowing, doppler filtering, envelope demodulation, pdi, cfar, centering, velocity tracking, angle tracking, a - b filtering, etc. the third section studies the modeling of modified proportion guiding, and establishes guiding model, then dynamic simulation results is provided
論文的主要工作包括四部分：第一部分研究了脈沖多普勒雷達導引頭的信號建模問題，建立了雷達信號模型，主要包括：發射信號模型、接收信號模型、目標回波信號模型、雜波模型、噪聲模型、和差通道天線方向圖模型、遮擋因子模型、接收機噪聲模型、目標雷達截面積統計性模型、目標角閃爍模型等。第二部分研究了脈沖多普勒雷達導引頭的信號處理模式，建立了信號和數據處理模型，主要包括：加窗和多普勒濾波、包絡檢波、檢波后積累、頻域cfar處理、速度定心、速度跟蹤、角跟蹤、 ?濾波等，然後給出了信號處理流程。 -
Digital signal processing technologies were used to produce spatial and directional beam in adaptive antenna. then the main beam aims at the coming direction of desired signal and the side lobe points to the coming direction of interference signals
自適應天線利用數字信號處理技術，產生空間定向波束，使天線主波束對準期望信號到達方向，旁瓣或零陷對準干擾信號到達方向。 -
In the paper, the gpr system developed by us employs several optimization techniques to enhance the system performances, including antenna, sampling - hold circuit, orientation wheel, function of system software, multithreading, and signal processing algorithms. as the result the system works more well with these techniques, and its azimuth and distance resolution of 10 cm has been achieved with detection depth of more than 50 cm. the main contents of this dissertation are summarized as following : 1
本文根據探地雷達系統工作原理，在電子科技大學探地雷達系統樣機研製的基礎上採用了各種有效的優化技術，包括探測前端、采樣保持電路的優化，定位輪、目標定位、多線程技術的應用，數據採集處理和控制軟體功能的拓展、各種有效的信號預處理演算法的應用等，顯著提高了系統的探測性能和增強了探測效果，使得系統方位、距離解析度均達到了10cm ，探測深度大於50cm ，其性能指標達到國外先進水平，為進一步的實用化奠定了重要的基礎。 -
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 approach needs one receiver with every antenna working in time - division mode, which uses the standard array signal processing algorithm to finding direction after recovering the multiple signals by interpolation
此方法採用一個接收通道，各陣元以時分方式工作，採用插值的方法恢復出各路信號，然後運用陣列信號處理演算法進行測向。 -
The lna is one of the most important and broad components in microwave communication system receiver, and is used to amplify the low level signal. as the first signal processing block after the antenna, the lna determines the noise figure and input voltage swr and greatly impacts the dynamic range
低噪聲放大器（ lna ）廣泛應用於微波接收系統中，是重要器件之一，主要用來放大低電平信號，由於是自天線下來第一個進行信號處理的器件， lna決定了整個系統的噪聲性能和電壓駐波比vswr ，並對動態范圍有著較大的影響。 -
In this paper, we use method of array signal processing, analyze the continuous aperture antenna, modify the parabolic antenna to a new antenna system that possess the functional of the searching and tracking
利用陣列信號處理方法，對連續口徑天線進行分析，將拋物面天線改進成為一種集搜索、跟蹤於一體的新型天線。 -
Several critical technologic problems of simulation system of phased array radar are discussed in this paper, firstly, transmission and processing procedure of signal in the phased array radar system are analyzed and the simulation systemic modular structure of phased array radar is founded. and the collectively simulation procedure are discussed. among all parts of whole phased array radar system, the phased array antenna is the most critical one, because the veracity and accuracy of the radar system simulation is directly influenced by it
本文針對相控陣雷達模擬系統中的幾個關鍵技術問題進行了探討，研究了相控陣雷達的結構、組成及信號在相控陣雷達系統中的傳輸、處理過程，在不影響模擬精度的前提下，進行了適當的簡化和替代等效，構建了模擬系統的模塊化結構，並分析研究了相控陣雷達系統模擬的總體流程。
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