無源雷達 的英文怎麼說

中文拼音 [wúyuánléidá]
無源雷達 英文
passive radar
  • 無 : 無Ⅰ動詞（沒有） not have; there is not; be without Ⅱ名詞1 （沒有） nothing; nil 2 （姓氏） a surn...
  • 源 : 名詞1. （水流起頭的地方） source （of a river）; fountainhead 2. （來源） source; cause 3. （姓氏） a surname
  • 雷 : 1. （雲層放電時發出的響聲） thunder 2. （軍事上用的爆炸武器） mine 3. （姓氏） a surname
  • 達 : Ⅰ動詞1 （暢通） extend 2 （達到） reach; attain; amount to 3 （通曉; 明白） understand thoroughly...
  • 無源 : [無線電] passive無源電路 passive circuit; passive electric circuit; 無源天線 passive antenna; ref...
  • 雷達 : [訊] radar （縮自 radio detection and ranging）
  1. Whatever it is radar, eccm equipment, communication equipment or instrument, frequency source with high stability is needed to guarantee the quality of carrier signal

    無論是雷達、電子對抗，還是通信、儀器設備等都需要高穩定度的頻率源，以保證載波信號的質量。
  2. Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation

    在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。
  3. Avionics self - protection system is a subsystem of the advanced avionics system, which has the main functions to find hostile radar - guided weapons system and infrared - guided weapons system by using the mothed of radar reconnaissance. and then to countermeasure enemy ' s radar - guided weapon system and infrared - guided weapons system by adoptinging those measures of electric - magnetic jamming ( active countermeasures ), chaff cloud deception jamming ( passive countermeasures ) and ir decoy deception jamming ( passive countermeasures ) so as to protect our airplanes from the hostile attacks this paper have researched deeply for the integrated mode of avionics self - protection system

    航空自衛系統是先進航空電子綜合化系統的一個分系統，其主要功能是通過雷達偵察方式發現敵方雷達制導武器系統和紅外製導武器系統，並通過實施電磁干擾（有源干擾） 、箔條雲欺騙式干擾（無源干擾）和紅外誘餌欺騙式干擾（無源干擾）對抗敵方雷達制導武器系統、紅外製導武器系統，保護我機免受敵方武器系統攻擊。
  4. In applications of array processing such as radar, sonar, and wireless communications, the array observed signal is best modeled as a distributed, rather than a discrete source

    在雷達、聲納、無線通信等陣列處理應用環境中，由於存在豐富的多徑散射，陣列觀測信號更適合採用分佈源模型來描述。
  5. An analysis on the reliability of passive radar system

    無源雷達系統可靠性分析
  6. Passive detecting and tracing is a promising way to overcome these problems. infrared targets detection is a critical issue in the passive infrared detection system, while infrared weak and small targets detection is one of its core

    無源或被動探測跟蹤技術是解決雷達對抗威脅有希望的途徑，其中利用紅外探測和跟蹤系統進行防禦是一個重要方向，紅外弱小目標檢測是被動紅外探測系統的關鍵技術。
  7. On the contrary, the infrared passive sensors detect and locate the targets in the space by the use of the heat of the targets, and they do n ' t radiate any energy to the space

    和雷達不同，紅外無源探測器通過接收目標輻射的熱能進行定位和跟蹤，不向空中輻射任何能量，因而不易被偵察或定位，具有很強的抗干擾能力。
  8. At the same time, if there are two kinds of sensors, like the radars and the infrared sensors, in a network system, the data from the different types of sensors can complement with each other, prove the ability of anti - disturbance, anti - strike, anti - detect of the system, and expand the scope of the system applied greatly

    因而，紅外無源探測器已成為一個重要的探測手段。同時，系統中如果包含雷達和紅外兩種異類探測器，它們獲取的數據互為補充，互相印證，將會極大的提高系統的抗干擾、抗打擊、反偵察的能力，大大擴展其適用范圍。
  9. To improve anti - jamming technique by spread spectrum close to monochromatic frequency, so that enhance the ability of anti - active - jamming and anti - passive - jamming, anti reconnaissance, anti - radiation missile, anti - stealth, by means of multi frequency spread spectrum and hopping spectrum instead of mono - frequency spread spectrum, realizing strong processing system for anti - interference signal, providing the method of generating of chirp signal and corresponding matched filter system

    摘要為改進線性調頻雷達系統所採用的在單色頻率點附近擴譜抗干擾技術，加強制導雷達站具備抗有源、無源干擾，反偵察，抗硬殺傷的反幅射導彈和反隱身的能力，通過將單頻點擴譜改為多頻點擴譜跳譜，實現了高抗干擾信號處理系統，給出方案中在中頻段實現的線性調頻信號產生方法以及對應的匹配濾波處理系統。
  10. Also, as the combination of action unit and detection unit, it is very flexible, agile and aggressive and becomes one of the key technologies in warfare. the study in this paper is performed around the key problems of the technology of location and tracking with network of passive airborne radars

    機載無源雷達組網作為無源探測和雷達組網的結合兼具二者共同的特點，同時又可以實現偵察平臺與作戰平臺相結合，具有很強的機動性、靈活性和攻擊性，將是今後戰爭中所依賴的關鍵技術之一。
  11. Based on analyzing the mechanism of direction finding triangulation location and location accuracy for two - ship passive locating, the acquisition probability model of anti ship missile terminal guidance radar is presented for two - ship passive locating : and the effects of the key factors to the probability are analyzed, and then the primary factors are pointed not by analyzing the results in different conditions

    摘要首先簡要介紹了無源定位技術，然後著重分析了雙艦無源測向交叉定位以及其誤差產生的機理，在此基礎上，給出了雙艦無源定位情況下實施超視距攻擊時，反艦導彈末制導雷達開機時刻對目標的捕捉概率模型，並通過模擬分析雙艦距離。
  12. This paper studies the helicopter, the propeller - driven aircraft and the turbofan jet airplane echo modulating feature parameter model and analyses the echo signal feature. it gains the target echo ’ s the cyclical modulation feature by using the complex ar frequency range bispectrum slice. because traditional method in extraction airborne radar ’ s radiant signal feature time has certain insufficiency, this paper proposes the approximate entropy and the norm entropy as the passive feature parameter in the airplane

    由於傳統方法等在提取機載雷達輻射源信號特徵的時候存在著一定的不足，本文提出把近似熵和范數熵作為飛機目標識別的無源特徵參數，給出了提取相應特徵熵的演算法，實現對機載雷達輻射源信號的識別，通過和機載雷達類型的匹配，實現對目標的識別。
  13. To solve the resource problem of anti - missile radar omnidirectional and high data rate tracking targets, missile self - position technology to improve missile position precision based on the scheme of passive bd is put forward

    摘要為了解決近程防空導彈制導雷達實現全方位、高數據率跟蹤多自標、截獲跟蹤多導彈遇到的資源緊張問題，提出了利用bd無源定位方案實現導彈自定位，提高導彈自定位精度的方法。
  14. Active detection systems, such as radar and sonar, have encountered more and more threaten in modern electronic warfare and information warfare. passive location and tracking system, which uses electromagnetic wave emitted by target, has been proved its merits of self - hiding and far - distance detecting and becomes more and more important

    現代電子戰和信息戰條件下，雷達和聲納等有源探測系統受到越來越多的威脅，利用目標輻射電磁信息的無源定位系統由於其自身隱蔽和探測距離遠等優點而日顯重要。
  15. Last, the paper discusses a passive positioning technology and its usage in uavs detection and location of enemy radars. then analyses pinpointing errors through simulations

    最後探討了無源定位技術，並將該技術應用在無人機群對敵方輻射源雷達的定位中，建立了定位模型並模擬分析了定位誤差。
  16. A monolithic microwave integrated circuit ( mmic ) is a microwave circuit in which the active and passive components are fabricated on the same semiconductor substrate. mmic, having advantages of small size, light mass, high reliability and excellent reproducibility, finds use in a variety of microwave system, especially in airborne radar and space applications

    單片微波集成電路（ mmic ）是將有源元件和無源元件都集成在同一個半導體襯底上的微波電路；具有尺寸小、重量輕、可靠性高、生產重復性好等優點，廣泛應用於各種微波系統，特別是機載雷達和衛星通信等方面。
  17. The main contents are as following. in chapter 2, the frame of the detection system with network of passive airborne radars and the principles which needed be followed when it is used in battle are studied as the assignment of it is discussed

    論文研究圍繞機載無源雷達組網定位技術展開，具體工作如下:論文第二章分析了機載無源雷達組網的作戰需求，並由此需求進一步分析了其系統組成和作戰特點。
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