front-end of receiver 中文意思是什麼

front-end of receiver 解釋
接收機前端
  • front : n 1 前部，前面；正面；（劇場的）正面[前面]座位〈也可指全部觀眾席位〉 （opp back rear）。2 【軍事...
  • end : n 1 端，尖，末端，終點。2 邊緣；極點，極限。3 結局，結果。4 目的。5 最後，死。6 【紡織；印染】經...
  • of : OF ＝Old French 古法語。
  • receiver : n 1 接受者。2 收稅人，收稅官。3 招待人。4 窩家，收買賊贓的人。5 應戰者。6 【法律】破產案產業管理...
  1. The main research works of this dissertation are aimed to design of radar waveform and the application of wavelets in ultra - wide radar, including : the design of a new kind of hybrid radar and the research of time side - lobe suppression for pulse compression, the design of receiver r adio front end in data acquisition of ultra - wide band radar, the time delay estimation based on wavelets ( packet ) analysis

    本文主要進行雷達波形設計研究以及研究小波理論在超寬帶雷達中的應用，集中體現在以下幾個方面：一類新的組合雷達波形設計及壓縮脈沖時間旁瓣抑制技術研究、超寬帶雷達多通道數據採集方法中前端射頻接收部分的設計及研製、基於小波（包）方法的時延估計方法。
  2. The x - band limiting amplifier is a part of the front - end for x band receiver. in this thesis, a x - band limiting amplifier is designed

    微波限幅放大器是電子偵察、電子對抗等雷達接收系統中的重要部件，存在著廣泛的應用。
  3. Then this paper deals with the design and realization of the smart - antenna receiver system architecture. and the receiver is divided into four modules, including rf front - end module |, if demodulation module, analog to digital conversion module and frequency synthesis module

    隨后在此基礎上，對應用於w - cdma系統智能天線接收機進行了系統設計分析，並給出了實現方案，主要包括射頻前端電路模塊、中頻解調電路模塊，參考頻率合成電路模塊和數模、模數轉換電路模塊四部分的設計與實現。
  4. The rf receiver consists of rf front end and baseband regulation module. the high - intermediate - frequency superheterodyne structure is adopted in the final scheme. the fine sensitivity of the receiver is achieved by two cascaded lna in the front of the system

    系統採用超外差式變頻結構設計，兩級低噪聲放大單元級聯保證了接收機靈敏度，兩級增益控制單元實現了所要求的接收機動態范圍，並且整機的線性度也得到了保證。
  5. In this paper, microwave t / r front - end for short distance wireless communication is realized in miniature based on low cost mcm - l technology. the main jobs are as follows : 1. the performances of i / q modulation and direct converter receiver are analyzed to set down the system scheme

    主要工作包括以下幾個方面: 1 .基於目前流行的數字中頻接收技術，分析了i / q調制和直接變頻接收機的性能，提出超外差變頻的總體系統方案。
  6. In this paper, for 2 ~ 2000mhz broadband rf front - end, using subsection processing fixed intermediate frequency superheterodyne architecture, and combining with the actual component ’ s level, a broadband rf front - end system simulation platform is presented, which provided the universal, standardization, and modularization of transmitter and receiver

    本文針對頻率范圍2 2000mhz的寬帶射頻前端，採用分段處理的固定中頻超外差結構，並結合目前的器件水平，建立了一個通用化、標準化、模塊化的寬頻帶射頻前端發射機和接收機系統模擬平臺。
  7. Subsequently, the communication of wireless is introduced as well as the key points of receiver ’ s rf front end. then, the design methods of receiver with high linearity and high dynamic range are recommended too. also, the blue print of the receiver, the achievement of function guide line and the problems in real debugging are discussed in detail

    本文先介紹了當代無線電導航的狀況以及發展趨勢和無線電的傳播，然後對接收機射頻前端的關鍵技術指標進行了深入分析，還介紹了系統在大動態范圍，高線性實現的一些設計方法，之後詳述了本項目採用的方案、具體功能指標的實現以及在設計與實現中應該注意的問題，最後給出系統的測試結果。
  8. The adaptive front - end has the adaptive ability for the magnitude and frequency of input signals. it can prefilter for the input signals, eliminate the useless signals, and improve the dynamic range of receiver system. it can lessen the burden of digital signal processing in the back - end of receiver, and improve the performance of receiver system

    自適應接收機前端對輸入信號有自適應能力? ?頻率自適應和幅度自適應，這樣的前端就可將系統的接收中心頻率和帶寬自適應到輸入信號的頻率和帶寬，其實就是對輸入信號進行一次預分選、預濾波，剔除對接收系統毫無作用的信號;同時對大信號自動減小增益，對小信號增加增益，提高系統的動態范圍;而且可以對干擾信號進行壓制。
  9. The radio frequency front end acts as information receiver and processor in the modern communication circuits. it is a very important part of the communication block

    射頻前端在現代通訊電路中起著接收和處理信息的作用，是通訊模塊中一個非常重要的部分。
  10. The company is mainly engaged in scientific research, development, manufacture, operation and international trade of cable tv broadband cisn product, network software, network system engineering, series product of digital tv front end, digital satellite receiver, digital cable tv set - top box, optical transmission equipment, digital tuner, optical electronic devices, etc

    公司主要從事有線電視寬帶綜合信息網路產品、網路軟體、網路系統工程、數字電視前端系列產品、數字衛星接收機、數字有線電視機頂盒、光傳輸設備、數字調諧器、光傳輸器件的科研開發、生產製造、經營銷售和國際貿易業務
  11. The demand for receiver ’ s every guide line has become much stricter, especially for linearity requirement of receiver ’ s radio frequency front - end. we assembled four modules on a rogers5880 board, and realize the function of filtering, amplifying, mixing, and the last low - pass filtering output

    本文在rogers5880的基板上將四個功能模塊組合在一起，完成了對x波段信號（ 10 . 5ghz ）的濾波，放大，混頻，以及最後的低通濾波輸出。
  12. The subject comes from the cooperation project “ long distance navigation short - wave receiver ” between chengdu sine science & technology ltd. and automatization school of harbin engineering university. the auther was responsible for implementation of the rf receiver of the system. the rf receiver consists of a rf front end, 3 dds synthesizer

    本項目來源於電子科技大學成都賽英科技有限公司與哈爾濱工程大學自動化學院的合作項目「遠距離導航短波接收機」 ，筆者負責其中接收機射頻部分的研製，該射頻接收機包括一個射頻前端和3個dds頻率合成器。
  13. In view of the importance of rf front - end circuits in the receiver system, the paper finally is focused on the analysis and design of the rf front - end circuits, including the design of low noise amplifier ( lna ), microstrip filter and balanced mixer. all the circuits above are simulated individually using ansoft serenade, and the results are satisfying with the desired performance

    考慮到射頻前端電路性能的好壞會直接影響到整機的性能，文中還重點論述了該接收機射頻前端電路的分析和設計，主要包括低噪聲放大器、微帶濾波器和單平衡混頻器的理論分析和實際設計，並在ansoftserenade環境下進行了模擬模擬，模擬結果符合設計要求。
  14. Finally, a ku - band receiver combined with lna, mixer and filter is designed, and a complete flow chart for the design process of the front - end circuit is given. in the end, some rf transceiver examples such as microwave power transfer system, satellite communication receiver system and phs cell station system are introduced and analyzed

    最後結合前面各章內容，給出了一個ku波段射頻前端接收機完整設計實例，並給出了包含微波無線供電系統、衛星接收機和phs基站在內的多個射頻前端電路的實例分析。
  15. And the performance of these algorithms is compared with each other. to simplify the sampling rate design and digital processing in receiver, we prefer to use the direct down conversion structure. the problem is the analog front - end in this structure will bring iq mismatch, which will effect the phase of recovered carrier and code

    第三部分對接收機中的載噪比估計演算法進行了分析，目前gps導航接收機中採用的載噪比估計演算法對殘余多普勒非常敏感，而且gps中的數據速率為50bps ，北斗二代中的存在數據速率為500bps ，應用條件的差異導致該演算法的不可用。
  16. Through this research papers, initial certification within the fpga software radio receiver front - end figures for the feasibility. and through simulation results of the comparative analysis, demonstrated some hardware systems can enhance the effectiveness of advanced algorithms, for the final realization of efficient software radio system laid the foundation

    通過本論文的研究，初步驗證了fpga內實現軟體無線電接收機的數字前端的可行性，並通過模擬結果的比較分析，證明了一些可以提高系統硬體效果的先進演算法。
  17. The subject derives from the project of " 0. 1m ~ 3000mhz universal receiver ", which is collaborated with ministry of science and technology of prc and chengdu sine science and technology ltd. undertake the rf front end in this project. the rf front end is divided into two separate parts, the 0. 1 ~ 30mhz & the 30m ~ 3ghz rf front end

    本課題來源於國家科技部創新基金項目： 0 . 1m 3ghz通用接收機，成都賽英科技有限公司負責射頻前端部分的研製，該射頻前端分為0 . 1m 30mhz和30m 3ghz兩大部分，筆者負責30m 3ghz部分射頻前端的研製。
  18. Data rate conversion technology for signal is one of the key technologies of wideband digital reconnoitering receiver. it is the feasible scheme to resolve the rate gap between the front end data flow of high speed analog digital converter ( adc ) sampling and the back end digital signal processor ( dsp ) processing

    雙信號數據率轉換技術是寬帶數字偵察接收機關鍵技術之一，是解決寬帶數字接收機中前端高速adc采樣的高速數據流與後端dsp處理速度之間瓶頸問題的可行方案。
  19. As a key component of rf front - end, broadband low noise amplifier ( lna ) becomes important in the sdr receiver

    寬帶低噪聲放大器作為接收機射頻前端的關鍵部件之一，在軟體無線電中起著重要的作用。
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