signal beam 中文意思是什麼
signal beam
解釋
信號束-
The beacon will have a limited beamwidth and if the body-to-beam angle exceeds this a serious loss of signal will result.
這個信標器的波束寬度有限，如果彈體波束角超過了它，信號就會發生嚴重的衰減。 -
Fso is also secure : the only way to intercept the signal is physically to intercept the beam
無線光通信也很安全：阻斷信號的唯一辦法就是物理阻斷光束。 -
Chapter 3 studies the false target jamming. jamming signal generation formula is proposed by the investigation of simultaneous ground echoes of two different point targets in radar beam. comprehensive research about the characteristics of jamming signal is made, and raw data is used in simulation
第三章對虛假圖像干擾進行了研究，通過對雷達波束內兩個不同的點目標在同一時刻的回波信號進行的分析比較，推導了干擾信號的生成公式，對干擾信號的特徵作了詳細的分析，並結合實測數據做了模擬實驗。 -
Signal processing system for beam position monitor at hls 200 mev linac
直線加速器束流位置測量的信號處理系統 -
And when the array transmits back to the cell - phone user, the processor sends an out - of - phase signal to one of the antennas, generating a radio beam that runs from north to south
當陣列發射訊號給行動電話用戶時，處理器會傳送一個異相的訊號到其中一個天線，產生由北往南的無線電波束。 -
During the past several years, due to significant advances in the development of solid state components and high speed signal - processing technology, multi - beam array imaging systems, which promise an increase in sensitivity and resolution have received considerable interest in both the military an civilian applications
近年來，隨著毫米波固態器件以及高速信號處理技術的迅速發展，高靈敏度、高解析度的多波束陣列目標探測技術正引起軍事和民用領域濃厚興趣。 -
In this dissertation, some algorithms and techniques of digital beam forming ( dbf ) of the conformal array are studied and also adaptive digital beam forming ( adbf ) of uniformity circular array ( uca ) based on wideband signal is investigated. this dissertation is organized as followed. in the first part of dissertation, the basic theory of conformal array is introduced
本文研究了共形相控陣的數字波束形成技術，對共形陣的相關技術進行了詳細介紹，並且對一些常規共形陣的數字波束形成技術進行了研究，得到較好的模擬結果，此外，還對寬帶共形陣數字波束形成技術及性能進行了討論、模擬及其性能分析。 -
At first some modification is made in conventional beam forming of frequency domain, namely to estimate doa by arrays outputs on compensated spacial frequency points of echoes. then the cwt is utilized to signal processing in space - frequency domain for estimation of doa, and the corresponding modification is also made. in the dissertation, the computer simulations of doa estimation for both narrow - band and wide - band echoes are given, so do the necessary comparison among several methods and crb
首先在傳統的頻域波束形成演算法的基礎上，提出對寬帶信號的頻率補償，也即對寬帶回波信號的各空間頻率根據時間頻率的差異進行相應補償，然後對各陣元輸出求和來得到方位估計；其次將連續小波變換引入到空間?頻率處理中，從而完成對目標方位的估計，並進行了相應地補償。 -
Smart antenna has two critical tasks, one is to filter the uplink signals, and the other is to form the downlink beam, and we need adaptive algorithm and digital signal processing ( dsp ) technology to fulfill these work. adaptive algorithm is one of the most important technologies of smart antenna, and it determines smart antenna ' s speed to the wanted to signal and the complexity of the circuit of the communication system
自適應演算法是智能天線的核心技術之一，它決定著智能天線對來波信號響應的速率和系統實現電路的復雜程度，系統需要針對各種通信環境來選擇合適的演算法，也可以採用演算法分集的方法來使整個系統工作在最佳狀態。 -
The detecting accuracy of the beam drift would be improved, as a high performance acoustooptic modulator modulates the frequency of the laser beam drift signal far away from the power frequency, the double power frequency and high frequency noises
具體包括: 1 .利用聲光調制器將光束漂移量信號調制到遠離工頻及其倍頻干擾和高頻噪聲的頻帶段，以期提高光束漂移量的檢測精度。 -
As a high - power twt, we consider the relativistic effect of the solid beam. the numerical results are given in terms of the small signal gain curve and slow - wave ration curve
作為大功率的行波管，我們考慮了電子注的相對論效應，數值求解「熱」色散方程，得到脊加載盤荷波導幾何參數和電子注參量與小信號增益的關系。 -
Then we introduce the character of the atmosphere channel, which we emphasized on the atmosphere scatter, absorption and scintillation ' s effect on the laser beam. in chapter, we explain why we used cassegrain telescope to collect the optical signal at first, then the lightsource, detector, front amplifier used in optical communication has been compared to that of fiber communication, the noise including shot noise, thermal noise and background light noise has been explained here for analysis the snr and ber in the next section
在第三章介紹無線光接入系統的光收發單元，採用多孔徑卡塞格倫式的收發天線對消除減小大氣湍流影響有較大作用，針對大氣通道的特點無線光系統收發單元在光源、光探測器、前置放大電路上存在許多有別于光纖通信的技術，同時還闡述了光接收機包括背景噪聲的噪聲機制和接收靈敏度、誤碼率等指標，最後給出了一個整個傳送鏈路的功率預算。 -
The thesis firstly analyzes the signal form of frequency modulated interrupted continuous waveform ( fmicw ) in theory, studies the principles of detecting range and velocity for fmcw, and further discusses the essential processing methods of the fmicw signal form, including the range transform processing method based on the strict corresponding relation between time and frequency domain, the velocity doppler transform, the digital beam forming
本文首先從理論上分析了在高頻地波超視距雷達所用的線性調頻斷續波信號的形式，研究了fmcw雷達測距測速原理，並深入地探討了fmicw信號的基本處理方法以及具體的演算法，主要包括距離變換中採用的時間波門相關處理方法，速度多普勒變換，數字波束形成。 -
The missile "rides" the beam; that is, it follows the radar signal until it hits the target.
導彈就駕馭著該波束，即跟著雷達信號直到擊中目標為止。 -
The relationship of cut - angle and the degree between pump beam and signal beam in bbo crystal pumped by 425nm pulse is theoretically calculated. 28. 7 cut - angle bbo crystal is chose for our use, which correspond to a 5 angle between pump beam and signal beam
在中心波長425nm飛秒脈沖抽運、下轉換光頻率簡並的情況下，選擇晶體的切割角為28 . 7度，對應下轉換光與抽運光在晶體外夾角為5度。 -
Secondly, a new method was proposed to obtain two important coefficients of the ce : knsbn crystal, rreff and neff, by fitting the variation of response time as a function of 2. thirdly, the temporal behavior of the pump beam, signal beam and fanning and the influence of fanning to twm were carefully studied and analyzed under different incident conditions in twm
在不同寫入光強比和寫入總光強下，獲得了ce ： knsbn晶體兩波耦合過程中信號光及泵浦光的時間演化曲線，分析了光扇的時間演化和光扇效應對兩波耦合動態過程的影響。 -
Fifthly, a reasonable explanation to the phenomenon was given that the temporal behavior of twm will be different while the signal beam opening time delays a different time after pump beam opened
對實驗觀察到信號光打開時間延遲將導致兩波耦合能量增益曲線峰值增益降低的現象，從光扇時間演化角度進行了合理的解釋。 -
The signal beam can be recreated by illuminating the medium with a beam identical to the original reference beam
通過用和原始參考光相同的光束來照亮感光介質可以還原信號光。 -
This “ signal beam ” then meets a separate reference beam, and where the two beams intersect they create an interference pattern in a light - sensitive medium
然後，信號光會和另一獨立的參考光相遇，當兩個光束相交時，它們會在感光介質中製造一個干涉圖樣。 -
The signal - to - noise ratio of the nondestructive testing system employing optical heterodyne and ultrasonic techniques is analyzed and calculated from two aspects including phase matching of optical heterodyne measurement in nondestructive testing and the effects of beam incidence on the intensity of heterodyne signal and signal beam
對光外差超聲無損探傷系統的信噪比從兩個方面入手進行了計算分析:第一，光外差測量在無損探傷中的相位匹配;第二，光束入射角對信號光光強和外差信號強度的影響。
分享友人