通信干擾 的英文怎麼說
中文拼音 [tōngxìngānrǎo]
通信干擾
英文
comjam communications jamming-
The spread spectrum communication with an aperiodic pn code and under strong man - made jammers has an important significance in military communications
強人為干擾環境下的非周期擴頻碼的擴頻通信在軍事上具有重要的意義。But there is much disturb and cacophony on power line, using commonly communication ' s mode is difficult to attain reliability ' s demand
但是由於電力線上的干擾及雜音比較大,採用普通的通信技術很難達到可靠性的要求。Through the processing method basing on wavelets, implementing the removing noise about section gauss noise to colure full tv signal, we resolve the theory and practice problems in the processing of weak signal detection
摘要通過基於小波分析的處理方法,實現對彩色全電視信號一段被高斯白噪聲干擾的降噪,解決微弱信號檢測過程中遇到的理論和實踐問題。And more, a computer simulation has been made and the results indicate the validity of part time - resident interference under the certain ratio of jamming - to - signal time - resident, consequently, it may provide concerned methods for countermining fh communication systems
進一步進行了模擬與分析,結果表明在一定干信駐留時間比情況下,部分駐留時間干擾的有效性,從而為針對跳頻通信系統進行對抗提供相關方法。Electronic counterwork is an important task of mt systems. the adaptability to sophisticated environment of communication devices, is the survival standard of mts
電子對抗是軍事通信的重要課題,通信設備對復雜工作環境的適應和抗干擾能力,是軍事通信系統的生存的標準。General specification for barrage communication jammers
阻塞式通信干擾機通用規范The first introduced basis concept fundamentals and development of reconnaissance and jam for communication. the second present fundamentals of reconnaissance for communication ; simulink simulation models ; reconnaissance for communication federate design. the models include : simulation models for communication ew panoramic scanning receiver, surveillance analyses receiver, multichannel - fft receiver
本文主要分三部分,首先介紹了通信偵察和通信干擾的基本概念及發展趨勢;第二部分介紹了通信偵察的基本原理、 simulink模擬模型以及通信偵察邦元設計,主要包括全景搜索接收機、通道化接收機;第三部分介紹了通信干擾的基本原理、 simulink模擬模型以及通信干擾邦元設計,結合通信收發邦元、測向邦元,給出了干擾效果。General specification for directed receivers used in the short - wave communication jamming
短波通信干擾引導接收機通用規范The spread spectrum communication ’ s availably jamming becomes the key to get the electronic war ’ s victory, so it is very important to research the effectiveness of jamming and interference referred to the direct sequence spread spectrum ( ds - ss ) communication system
為取得現代電子戰的勝利,對擴頻通信的有效干擾成為關鍵。因此,研究直接序列擴頻通信干擾效能具有重要的現實意義。This paper first introduced the electronic war ' s basic concept, development process and its developing trend, and then gives out the theory, key technology, application and developing trend of communication scout, direction - finding communication and communication jam in great detail. after that the cjw - 2000 system was referred to, and its system function and information flowing was analyzed. then the paper analyzed and introduced the theory, function, system structure, technical guide line and working flowing of the electronic jam rivalry scouting and analysis sub - system in detail. at last it gave the analysis of the interface standard of the electronic rivalry scouting, its interface message format and the data - base design of different equipments
本文首先簡單介紹了電子戰的基本概念、電子戰的發展過程及發展趨勢,接著比較詳細地分析了通信偵察、通信測向、通信干擾等的原理、關鍵技術、應用及發展趨勢,然後對cjw - 2000系統進行了簡單介紹,並且對其系統功能及信息流程進行的簡單分析,之後又對cjw - 2000系統中的電子對抗偵察與分析分系統的原理、功能、系統結構、技術指標和工作流程等進行了比較詳細的分析與介紹,最後詳細分析了電子對抗偵察與分析系統的介面標準,並對電子對抗偵察與分析系統內部不同設備之間的介面報文格式以及數據庫的設計進行了詳細的分析。This paper mostly studied the modeling and simulating of reconnaissance and direction finding system for communication by using hla / simulink simulation platform for communication ew. the purpose is to design reconnaissance federate and jam federate for communication ew simulation system by using hla simulation based on different reconnaissance system for communication and simulation modeling with different jamming mode
本文以通信對抗為背景,採用hla / simulink模擬平臺,研究通信偵察系統與通信干擾系統的建模與模擬實現,在建立對不同體制的通信偵察系統及各種干擾樣式模擬模型的基礎上,設計並實現基於hla的通信對抗模擬系統中的偵察邦元和干擾邦元。Telephone transmission interference allowances for long - distance high - capacity analogue microwave communication systems
大容量長距離模擬微波通信干線電話傳輸干擾容限The directional routing protocol ds _ dsr put forward by the author is the improvement of the current protocol dsr, complete routine discovery and maintenance by directional neighbor nodes routing table, source routing and directional steering. the research discovers the application of the directional antenna, compare the omnidirectional antenna can increases the networks " total throughput, obviously reduces the co _ channel interference ( cci ), multiple access interference ( mai ), enlarges the nodes " signal and interference to noise ratio ( sinr ), and because of the high gain of directional antenna can realize the communication with farther distance and less jump, end to end delay can decrease deeply, simultaneously, security of networks can be improved partially, the node energy also can be saved easily by power control
本文提出的定向路由協議ds _ dsr是基於對現有協議dsr的改進下實現的,通過定向鄰節點路由表、定向源路由和定向搜索來完成路由發現與維護。研究發現,定向天線的應用,相比全向天線可明顯提高網路的總的吞吐量,減少通道干擾、多址干擾,提高信干噪比,且由於定向天線的高增益可實現較遠距離、較少跳數的通信,減少了路由發現時間,這樣大大減小了傳輸時延,網路的整體性能得到了不同程度的提高,同時部分地解決安全問題,通過功率控制還可較容易的實現節能的目的。First, the traditional speech detection method based on short - time energy is discussed, including its principle and implementation. then it is used for the jumping - off point detection of speech signals transmitted by awgn channel. simulation results are provided
包括該方法的原理、實現,並將其應用於加性高斯白噪聲通道干擾下的語音信號起點檢測實驗,給出了實驗的統計結果。For implement of wide band modulation, multi - carries and elimination of adjacent channel interference to satisfy ber requirement in wcdma system, which is most popular in 3g technology, the linearity requirement of the base station power amplifier becomes tighter
以wcdma為代表的第三代移動通信技術,為實現寬帶調制、多載波應用,同時減小鄰通道干擾以滿足通信系統的誤碼率要求,對基站發射機功放的線性指標要求苛刻。Smart antenna may reduce coggege of electronic engineering of uestc, the cochannel interferences ( cci ), enhance the user capacity and spectrum efficiency, reduces the transmit power and electromagnetic interferences, enhance the transmit efficiency, dynamically divide cells in third generation cellular
智能天線技術應用於第三代移動通信系統中具有可以減小因頻率復用造成的共通道干擾( cci ) 、提高頻譜利用效率及增大系統容量、減小發射功率和空間電磁干擾、增加發射效率、對小區進行動態劃分等優點。Multibeam base - station smart antennas are discussed in this paper. we analyze the outage probability of mobile communication system suffering both fast fading and shadowing by means of statistical propagation model, and contrast the case that adopt multibeam smart antennas to the case that adopt omnicase. the results emulated by computer show that the outage probability of mobile communication system will diminish as the increasing of the number of beams using smart antennas no matter when suffering a single co - channel interfence or six ones
研究了移動通信環境下的多波束智能天線,並基於統計傳播的同通道干擾模型,分析了快衰落及慢衰落情況下未採用多波束智能天線與採用多波束智能天線時的中斷率,並進行了比較.計算機模擬結果表明:採用多波束智能天線,不論在單個同通道小區還是多個同通道小區情況下,系統的中斷率將隨著波束數的增大而降低According to the characteristics of single - tone in frequency domain, single - tone interference can be reconstructed. then interference cancellation is implemented
該方法結合單音信號在頻域的特性,對單音干擾進行重建,然後通過干擾對消達到抑制干擾的目的。As is known that lead can interfere the formation and ma - intainance of ltp by abnormally enhancing or inhibiting the activity of pkc in hippocampus and the distribution of isoenzyme pkc - y
某些影響大腦學習記憶功能的毒物也是通過干擾中樞神經可塑性及信號轉導過程而發揮其毒性作用的。Especially in recently about ten years, because cdma communication rapidly is developing and the amount of user is increasing in striking speed, the capability of communication give prominence to fall. because capacity of channel is limited by interference, especially for the interference from the same channels and the adjacent channels
特別是近十幾年來,由於移動通信的迅猛發展,移動用戶的數量以驚人的速度在擴張,這樣由於用戶數量增長而造成通信質量的下降矛盾就顯得特別突出。由於通道的容量是由干擾所限定的,尤其是同通道干擾和鄰通道干擾的影響更為嚴重。分享友人