相干雷達 的英文怎麼說
中文拼音 [xiānggānléidá]
相干雷達
英文
coherent radar- 相 : 相Ⅰ名詞1 (相貌; 外貌) looks; appearance 2 (坐、立等的姿態) bearing; posture 3 [物理學] (相位...
- 干 : 干Ⅰ名詞1 (事物的主體或 重要部分) trunk; main part 2 (幹部的簡稱) short for cadre Ⅱ動詞1 (做...
- 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...
- 相干 : 1 (多用於否定句或疑問句) have to do with; be concerned with 2 [物理學] coherent; 相干散射 coher...
- 雷達 : [訊] radar (縮自 radio detection and ranging)
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Clinical study on dengzhan xixin injection combined with photon - autotransfusion therapy in treating diabetic peripheral neuropathy
脈沖相干激光雷達對運動目標成像模擬Coherent pulse radar
相干脈沖雷達Synthetic aperture radar ( sar ) is a kind of coherent pulse radar which appeared in 1950. it can improve space resolution by fully using the signals " coherence
合成孔徑雷達( sar : syntheticapertureradar )是20世紀50年代發展起來的一種相干雷達。It can provide more information, better real time and stronger anit - jamming than radar, also it has other virtues such as transmitting over obstacles. in a word, ais can bring the revolutionary progress to the supervision of the vessels navigating in the sea
它與當前的雷達相比具有提供信息量大,實時性好(適用於高速船) ,抗干擾能力強和越障礙傳輸等優點, ais系統將會給海上船舶監視帶來革命性的進步。To improve this ability, a higher cross - range resolution is needed. an inverse synthetic aperture radar ( isar ) achieves high resolution in the cross - range dimension by taking advantage of the motion between radar and targets to synthesize the effect of a larger antenna aperture
逆合成孔徑雷達( inversesyntheticapertureradar ,簡稱isar )信號處理對接收到的運動目標的回波信號進行相干處理,等價成一個大口徑天線,很大程度上提高了方位向距離分辨力。The waveform generated using digital systems is of strict coherence, repetitiveness, high stability and programmability, which can also easily realize the waveform parameter agility and generate arbitray waveforms in order to meet the urgent needs for anti - interference and strong viabilities of radars under modern ew environment
數字方法生成的波形具有嚴格的相干性、可重復性、高度的穩定性和可編程的優點,能夠方便地實現波形參數捷變以及產生任意復雜波形,滿足了現代電子戰環境中對雷達抗干擾和強生存能力的迫切要求。Wavelet packet transform is used to improve the snr of the incoherent integral radar echo, and bispectrum algorithm is used for signal detection in this united detecting algorithm, based on the modeling for the through - wall radar echo
在對穿墻雷達回波信號建模的基礎上,用聯合演算法將非相干累積后的回波信號經過小波包變換提高信噪比,再用雙譜演算法進行信號檢測。This kind of jamming not only could avoid the process of coherent radar for blanket jamming to improve the utility of jamming power, but also own better jamming effect than pore deception jamming
這種干擾不僅消除了相參雷達對壓制干擾的處理增益,以提高幹擾功率利用率,同時又比純欺騙干擾具有更好的干擾效果。When blanket jamming is used, the more the ratio between the power of jamming and the power of signal, the less detection probability of the radar is. the effect of distributed jamming mainly depends on the total power. after distributed, the randomicity of distance and phase of jamming source bring difficulties to analysis
對壓制式干擾來講,干信比越大,雷達的發現目標的概率就越小,由於分散式干擾的干擾效能在於其合成功率,在分散式干擾單元分佈之後,各個干擾源與被干擾對象之間的距離的不確定性,帶來了干擾信號相位的不確定性,增加了分析干擾效能的復雜度。Application theory of enhanced wave in tunnel ram testing by ground penetrating radar
相干波理論在地質雷達隧道襯砌檢測中的應用Advantages, disadvantages and limits of arm are thoroughly examined using signal processing methods. based on the above, incoherent and coherent two - point - source decoy methods and modified coherent two - point - source decoy methods to deflect arm are brought forward. arm ’ s homing heads are generally of mono - pulse structure, so coherent two - point - source ’ s interference resembles that to mono - pulse radar except that interference to radar belongs to far field scope, but interference to arm varies from far field to near field because relative distance drastically changes between the homing head and the two - point - source with missile ’ s homing head continually approaching the target
Arm的導引頭一般為單脈沖體制,因此,相干兩點源對導引頭的干擾類同於對單脈沖雷達的干擾,不同的是:對雷達的干擾都是遠場,而導引頭隨著導彈不斷接近目標,兩點源與導引頭的相對位置發生劇烈變化,由遠場變化到近場;導引頭天線口面上的合成場也發生了大的變化,相位波前的畸變產生干擾,這就是相干兩點源誘偏的基本思想。Coherent infrared radar
相干紅外雷達Second, research and analyze the feature of signal of pulse compression radar, and discuss the principle and characteristic of pulse compression technique, that are linear frequency modulation and phase coding. the above two mathematic model is constructed, and shift - frequency noise is imposed on the models, and anti - nose ability is evaluated and simulated
通過對脈沖壓縮雷達的信號特徵的研究和分析,通過研究線性調頻和相位編碼脈沖壓縮技術的原理和特點,建立了這兩種雷達的數學模型,並對此進行移頻干擾和相位編碼雷達干擾,並進行干擾性能的評估和模擬研究。The jamming of two models of pulse compressed radar, linear frequency coded radar and bi - phase coded radar, are studied in this dissertation
本論文討論了脈沖壓縮雷達中兩種典型的雷達制式:線性調頻雷達和二相編碼雷達的干擾。Gyroklystron amplifier is a novel high - power millimeter - wave coherent radiation source. as a result of high - power capability and high - efficiency and moderate bandwidth advantages, gyroklystron amplifiers have received a great deal of attention in recent years for a variety of applications including high - power radars, electronic counter systems and the next linear collider etc. specifically in twenty years later, there was much developments on gyrotron
迴旋速調管放大器是一種能夠在毫米波段獲得高功率、高效率及一定帶寬的新型毫米波相干輻射源,因其在高功率毫米波雷達、電子對抗、定向能武器、材料處理和加速器等領域的重要應用前景,在國際上受到了廣泛的重視。In chapter 5 the jamming such as phase modulation noise, binary pseudo random sequence and multiple pseudo targets are discussed
第五章對雷達干擾進行了闡述,主要的干擾信號有連續噪聲調相干擾、偽隨機碼噪聲干擾、多假目標干擾。By using optical cable communication methods, which have advantages of great information transmission capacity, rapid velocity, wide frequency band, strong anti - jamming capability, low circuitry loss and easy construction, modern sky - wave over - the - horizontal radar can achieve information transmission and system control of full coherent radar, which has excellent abilities of security, stabilization, anti - jamming and anti - destruction
通過採用光纖傳輸技術,利用其信息傳輸容量大,速度快,頻帶寬,抗干擾能力強,線路損耗低,易於施工等特點,實現全相參雷達的信息傳輸和系統控制,具有優良的保密性,穩定性、抗干擾性和抗摧毀能力。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。This paper comprises two parts : radar clutter simulation and adaptive moving target indication. in the former part, we analyse the generation mechanism of single - channel radar correlated clutter and illuminate the simulated modeling way of rayleigh, log - norm, wei bull, k - distributed clutter with special power spetrum. all these models are used into the practical simulation of ground clutter, cloud - rain clutter and chaff jammer according to their features
在雷達雜波模擬部分分析雜波的產生尤其是單通道相關雷達雜波產生的機理,具體闡明了在指定雜波功率譜情況下,幅度服從瑞利分佈、對數正態分佈、韋伯分佈和k -分佈的雜波的建模與模擬方法,並根據不同分佈的特點,將其應用到地雜波、氣象雜波和箔條干擾的模擬中。To implement effective jamming on the modem coherent radar, this paper proposes one smart noise jamming realization scheme based on convolution modulation
摘要為了對現代新體制相參雷達實施有效的干擾,提出了一種基於卷積調制的靈巧噪聲干擾技術實現方案。分享友人