difference channel造句
例句與造句
- Single pole double throw switch ( spdt ) mainly complete the conversion of the signal between difference channels , the control element in common use is pin diode and gaas mesfet
單刀雙擲開關(guān)( spdt )主要用來完成信號(hào)在不同信道間的轉(zhuǎn)換，其常用的控制器件有pin管和gaasmesfet兩種。 - Inconsistency between the sum and difference channels in the phased array radar system will affect angle measurement accuracy if the monopulse angle measurement technique is employed . in order to achieve better angle measurement accuracy , they need to be calibrated
在采用單脈沖技術(shù)對(duì)目標(biāo)進(jìn)行角度測(cè)量的相控陣?yán)走_(dá)系統(tǒng)中，和差波束接收通道的幅相不一致性對(duì)系統(tǒng)的角度測(cè)量精度有較大的影響。 - The calibrating technology is mainly divided into two groups : the off - line ones and the on - line ones . the former one is now widely used in the monopulse system to calibrate the amplitude and phase imbalances between the sum and difference channels by injecting test signals
離線校正的方法是現(xiàn)階段單脈沖雷達(dá)系統(tǒng)進(jìn)行和差通道幅相校正采用的主要方法，它通過注入測(cè)試信號(hào)的方法來得到對(duì)誤差接收通道幅相特性的估計(jì)。 - To the single pulse angle measuring , phase comparison and phase sum - difference angle measuring method are discussed and compared . sum - difference channel modeling and simulation are made . based on system research and signal processing discussed above , some basically jamming methods are discussed and simulated
對(duì)于單脈沖測(cè)角方法,研究了相位比較法和相位和差單脈沖測(cè)角方法,對(duì)兩種方法進(jìn)行了比較并給出了和差通道方向圖的仿真。 - Based on mono - pulse radar system and the analysis of terrain echoes , a geometrical model of air to ground ranging is constituted . by using the signals received from the sum and difference channels of terrain follow radar , a group of the expressions for terrain echoes are educed and characteristics of these echoes are obtained . according to the characteristics of the echoes , the theory and method of pass zero detection of difference channel and its applications are discussed in detail
針對(duì)一維單脈沖雷達(dá)體制，分析了地形目標(biāo)回波特性；建立了地形跟隨雷達(dá)空地測(cè)距的幾何關(guān)系；利用雷達(dá)收發(fā)信號(hào)，導(dǎo)出了地形跟隨雷達(dá)和差接收通道的回波信號(hào)表達(dá)式，進(jìn)行了波形仿真，得到了地形跟隨雷達(dá)的地面散射產(chǎn)生回波在時(shí)域中的特性；根據(jù)和差回波特性，闡述了差信號(hào)過零點(diǎn)檢測(cè)測(cè)距的原理和方法及工程實(shí)踐中的應(yīng)用，并給出了真實(shí)雷達(dá)對(duì)外輻射試驗(yàn)的結(jié)果，驗(yàn)證了文中的仿真。 - It's difficult to find difference channel in a sentence. 用difference channel造句挺難的
- 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(dá)導(dǎo)引頭的信號(hào)建模問題，建立了雷達(dá)信號(hào)模型，主要包括：發(fā)射信號(hào)模型、接收信號(hào)模型、目標(biāo)回波信號(hào)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(jī)噪聲模型、目標(biāo)雷達(dá)截面積統(tǒng)計(jì)性模型、目標(biāo)角閃爍模型等。第二部分研究了脈沖多普勒雷達(dá)導(dǎo)引頭的信號(hào)處理模式，建立了信號(hào)和數(shù)據(jù)處理模型，主要包括：加窗和多普勒濾波、包絡(luò)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，然后給出了信號(hào)處理流程。 - Radar signal simulator features economy ， flexibility ， practicality ， etc . it ' s significant to develop radar simulators for radar research and manufacture . this dissertation discusses mainly the analysis of ground clutter spectrum in sum and difference channels for airborne phased array radars ( apar ) , and the design of the radar signal simulation resource and the video output of the apar simulator
本文以機(jī)載相控陣?yán)走_(dá)視頻信號(hào)模擬器的研制為背景，以實(shí)現(xiàn)和差通道的目標(biāo)和雜波模擬為重點(diǎn)，對(duì)該系統(tǒng)的雷達(dá)時(shí)序產(chǎn)生和系統(tǒng)的視頻輸出等問題的設(shè)計(jì)和實(shí)現(xiàn)進(jìn)行了較深入的研究。