signal pulsing造句
例句與造句
- We must shape to the signal pulse
這時(shí)必需將信號(hào)脈沖整形。 - A study of the shaping of signal pulse under the condition of a synchronous pulse pump
同步脈沖泵浦下信號(hào)脈沖整形的研究 - Laser light - scattering event - a signal pulse that locates surface imperfections on a wafer
激光散射-由晶圓片表面缺陷引起的脈沖信號(hào)。 - Analysis of compression characteristics of gaussian signal pulse in semiconductor optical amplifiers by utilizing rectangular control pulse
矩形控制脈沖在半導(dǎo)體光放大器中對(duì)高斯信號(hào)脈沖的壓縮效應(yīng)分析 - It emphases on the system of signal pulse signal channels , and sets forth the methods of realizing 、 way of demodulation 、 advantage and disadvantage . afterwards , the paper introduces how to design a “ s band remote measuring receiver ”
重點(diǎn)介紹了單通道單脈沖跟蹤體制,對(duì)其實(shí)現(xiàn)途徑、解調(diào)方式、較其它體制的優(yōu)缺點(diǎn)作了全面的闡述。 - It's difficult to find signal pulsing in a sentence. 用signal pulsing造句挺難的
- In this paper , we frist discuss the radar signal pulse and it ' s parameters , then we introduce the principle and method of the measure . at last we introduce how to get the pa , pw and toa based on xilinx spartan - ii fpgas
本論文首先對(duì)脈沖及其參數(shù)進(jìn)行了分析，然后介紹了雷達(dá)脈沖參數(shù)測(cè)量的原理，并針對(duì)現(xiàn)代復(fù)雜電磁環(huán)境的特點(diǎn)，對(duì)脈沖參數(shù)測(cè)量的方案進(jìn)行了設(shè)計(jì)。 - The optical channel models for airborne submarine laser communication are built . the multipath time spreading of signal pulse is studied . the waveform of received signals in receiver in submarine laser communication system is analyzed and simulated
通過(guò)蒙特卡羅方法的模擬研究，建立了機(jī)載激光對(duì)潛通信的光脈沖傳輸模型，研究了信號(hào)光脈沖的時(shí)間擴(kuò)展，分析并模擬了接收面上的接收波形。 - At present , signal pulses produced by directly modulated laser diodes have been used in optical fiber communication systems . the experiment reveals that the optical pulses from directly modulated laser diodes are far from gaussian and have near - rectangular temporal profiles with much sharper leading and trailing edges , and then a super - gaussian model , which assumes that an incident optical pulse has a super - gaussian profile , may be more suitable
但在實(shí)際的光通信系統(tǒng)中，人們常采用由直接調(diào)制半導(dǎo)體激光器產(chǎn)生的光脈沖作為信號(hào)脈沖，而實(shí)驗(yàn)結(jié)果表明這種脈沖具有比高斯脈沖更為陡峭的前沿和后沿，其脈沖形狀更接近于超高斯分布，并且通常還帶有一定量的啁啾。 - Agrawal ' s theory model of soa ca n ' t simulate accurately the amplified signal pulse shape in soa when the pulse width is as short as several picosecond . so we simulate accurately the peak power , full width half maximum , rising time and falling time of amplified pulse after considering the gain compression , gain asymmetry , gain shift , gain variable with situation and time . with ultrahigh velocity dense wavelength division multiplexing ( dwdm ) and optical time division multiplexing ( otdm ) developing , we demand more and more short signal pulse and more signal channels
但當(dāng)信號(hào)脈沖的寬度只有幾個(gè)皮秒時(shí)， soa傳統(tǒng)的agrawal理論模型已經(jīng)不能完全準(zhǔn)確地模擬soa對(duì)信號(hào)脈沖的放大情況，在此基礎(chǔ)上，我們?cè)谌婵紤]soa的增益壓縮、增益非對(duì)稱(chēng)和漂移、增益隨位置和時(shí)間變化的載流子壽命等物理機(jī)制的情況下，對(duì)皮秒超短高斯信號(hào)光脈沖經(jīng)soa放大后的脈沖的峰值功率、脈沖半值全寬度、脈沖的上升時(shí)間和下降時(shí)間等重要物理參量進(jìn)行了準(zhǔn)確模擬和詳細(xì)研究。 - In the picosecond and femtosecond time field , the durations of the pump and signal pulses are so short that special propagating characteristics of ultrashort pulse laser should be taken into account , especially the pulse broadening induced by the group velocity mismatch and the group velocity dispersion
在皮秒和飛秒時(shí)域，由于泵浦光與產(chǎn)生的信號(hào)光的持續(xù)時(shí)間特別短，故在討論超短脈沖與物質(zhì)相互作用時(shí)必須計(jì)及超短脈沖在介質(zhì)中傳輸?shù)奶厥庑再|(zhì)，尤其是群速失配與群速色散引起的脈沖展寬。 - Nonlinear directional coupler ( nldc ) is a switch used in optical network . w . s . man had studied transmission controlling with ground state soliton through nldc , it is obviously not available to used in superhigh speed network ; and mary j . potasek had studied the self - coupling with ultrashort solitons in nldc , self - coupling is difficult to control the signal transmitting . i has studied the transmission controlling with ultrashort solitons ( < 100fs ) in nldc , similarly i use a controlling pulse to control the signal pulse , it is the intensity of controlling pulse to decide the signal change its direction or not
非線(xiàn)性定向耦合器( nldc )是用在光網(wǎng)絡(luò)中的光開(kāi)關(guān)器件，它主要用在全光網(wǎng)絡(luò)中， w . s . man等研究過(guò)基態(tài)孤子在nldc中的傳輸控制，便于對(duì)全光網(wǎng)絡(luò)中數(shù)據(jù)的正確傳輸，由于目前研究集中在100fs的超短脈沖傳輸特性上，顯然基態(tài)孤子的特點(diǎn)不再適用于超高速網(wǎng)絡(luò)； maryj . potasek等就超短脈沖在nldc中的自耦合做了研究，在光網(wǎng)絡(luò)中自耦合任意性太大，不利于控制脈沖的傳輸。 - Active underwater acoustic positioning / tracking systems locate target by measuring the range from object to receiving sensors . usually the target - receiver range can be got by the propagating time of a signal pulse . if this propagating time is larger than the pulse repetition period , it will mean that more than one signal pulse are on propagation
主動(dòng)水聲跟蹤定位系統(tǒng)通過(guò)測(cè)量脈沖信號(hào)的傳播時(shí)延可以測(cè)得目標(biāo)相對(duì)接收機(jī)的距離，當(dāng)此傳播時(shí)延大于系統(tǒng)同步周期時(shí)，時(shí)延測(cè)量就會(huì)呈現(xiàn)不確定性，可能相差若干個(gè)重復(fù)周期，導(dǎo)致定位解多值，稱(chēng)之距離模糊現(xiàn)象。 - A numerical simulation method is presented for studying the light storage based on the technique of dynamic eit . comparing with analytical method under certain limitations , this numerical method has advantages to study the change of the signal pulse with the effect of various factors , such as atomic decay and so on
采用數(shù)值模擬的方法研究基于動(dòng)態(tài)電磁感應(yīng)透明dynamic eit技術(shù)的光存儲(chǔ)，與通過(guò)近似得到解析解的方法相比，此方法更有利于研究各種因素如原子弛豫對(duì)存儲(chǔ)過(guò)程的影響。 - But the development of dwdm ca n ' t be satisfied for finite wavelengths . however aowc can make the wavelengths reused . a novel project is explored for signal pulse compression and shaping by utilizing the co - propagating second order super - gauss control pulse and gauss signal pulse in semiconductor optical amplifier
隨著超高速密集波分復(fù)用( dwdm )和光時(shí)分復(fù)用( otdm )的日趨發(fā)展，要求信號(hào)脈沖的脈沖寬度越來(lái)越窄和復(fù)用的信道數(shù)也越來(lái)越多，但有限的波長(zhǎng)資源不能滿(mǎn)足dwdm的發(fā)展要求，而波長(zhǎng)轉(zhuǎn)換技術(shù)可以提高信號(hào)波長(zhǎng)的重復(fù)利用率。 - The results show that wavelength locates in gain zone of semiconductor optical amplifier , and have higher peak power and proper time delay between the two pulses for the second order super gauss control pulse in semiconductor optical amplifier . a high quality amplified signal pulse can be achieved . the chirp can be reduced notability by using cascading soa in cross gain modulation based on soa , and the distance and the peak power of conversion optical pulse can be increased notability , and we can let down the demand for wavelength based on xgm in soa and enhance the flexibility of wavelength conversion
我們應(yīng)用二階超高斯光脈沖與高斯信號(hào)脈沖同時(shí)注入soa和應(yīng)用soa與非線(xiàn)性光學(xué)環(huán)鏡( nolm )相結(jié)合的方案來(lái)對(duì)信號(hào)脈沖進(jìn)行壓縮整形，模擬顯示，在調(diào)節(jié)系統(tǒng)合適參數(shù)的情況下，波長(zhǎng)位于soa增益區(qū)的二階超高斯控制光脈沖在具有較高的峰值功率和適當(dāng)時(shí)延下輸入soa時(shí)，最后可以得到放大的高質(zhì)量超短信號(hào)光脈沖；在基于soa的交叉增益調(diào)制( xgm )全光波長(zhǎng)轉(zhuǎn)換中，采用級(jí)聯(lián)的soa能有效地使反轉(zhuǎn)光脈沖的頻率啁啾得到有效降低，波長(zhǎng)向下轉(zhuǎn)換的距離和反轉(zhuǎn)光的峰值能量都得到明顯提高，降低了利用交叉增益調(diào)制( xgm )波長(zhǎng)轉(zhuǎn)換中對(duì)波長(zhǎng)精度的要求，從而提高了波長(zhǎng)轉(zhuǎn)換的靈和性。