射電脈沖 的英文怎麼說
中文拼音 [shèdiànmàichōng]
射電脈沖
英文
radio pulse-
The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble
系統採用電臺的電視伴音調頻信號，其中電臺信號與伴音信號功率之比基本為10 ： 1 ，並且目標散射信號較弱，一般情況下淹沒在雜波和機器熱噪聲之下，採用常規的脈沖檢測方法很難對遠距離的目標進行檢測，而以電臺直達信號作為參考與目標回波信號進行相關檢測；系統中信號的相關處理會產生旁瓣，而強目標的旁瓣會影響附近的弱目標檢測。A pulse from an intense laser or particle beam, however, creates a disturbance in the plasma
然而，一個從高密度的雷射或粒子束所產生的脈沖，可以對電漿產生擾動。In contrast, a pulsar emits a lot of its radiation in radio wave
脈沖星所發放的輻射則主要為無線電波。Submillisecond radio pulsar
亞毫秒射電脈沖星Duo to the intrinsic characteristics of the gaas material, serai - insulating ( si ) gaas photoconductive semiconductor switches ( pcss " s ) have more obvious advantages in the performance of both high power and ultra - fast switching than those pcss " s made of other materials and then can be widely used in ultrahigh speed electronics, field of high power microwave generation and pulse forming ( pulse sources of high power ultra - fast electromagnetism, ultra - wide - band microwave generator )
半絕緣gaas光電導開關（ photoconductivesemiconductorswitches簡稱pcss ' s ）具有兼備寬頻帶和高功率容量特性，使其在超高速電子學和大功率脈沖產生與整形技術領域（大功率亞納秒脈沖源、超寬帶射頻發生器等）具有廣泛應用前景。Design of double ultrasound pulse transmitting and receiving circuits used in ultrasound thermometry
一種用於超聲測溫的雙超聲脈沖發射接收電路的設計In the two - photon resonance case, part of the input pulse energy is transformed into higher and lower frequency components through amplified spontaneous emission and four - wave mixing, and the medium shows strong optical power limiting effect
在雙光子共振情況下，即入射脈沖頻率等於1 、 3能級之間的共振頻率的一半，由於介質中放大的自發輻射和四波混頻的作用，部分入射脈沖能量轉化為高頻和低頻電場成分的能量，分子介質表現出了很強的光功率限幅特性。Comparing shrinkage under bpec and conventional heating, we can conclude that obvious shrinkage occurred at relative lower temperature and velocity of shrinkage was greater under bpec heating
比較脈沖大電流和輻射加熱燒結過程中樣品的收縮，結果表明前者在相對較低的溫度即發生明顯的收縮，並且收縮速率大於後者。To destroy or cripple power and communications lines leading into the target, u. s. forces may need to physically bomb or to employ the pentagon ' s e - bomb, which emits a powerful microwave pulse
要毀掉或破壞通往目標的電力與通訊線路，美軍可能需要實際炸毀或利用五角大廈開發的電子炸彈，這種炸彈可發射超強的微波脈沖。We found the " forward stimulated raman scattering " will be excited if the pulse length is greater than plasma wave length. the " forward stimulation raman scattering " decreases the phase velocity and the amplitude of the wake wave which will lead to the reduction of maximum kinetic energy of the electrons trapped
結論是：當脈沖長度接近等離子體波長時，稀薄等離子體將發生「前向受激raman散射」 ，它使脈沖后沿拉長，導致尾流場的相速度變小，以至於被尾流場「捕獲」的電子最大動能大大下降。Thus, space - charge field in excitated photoconductor can intensity influence not only the shape of photo - electric current of pcss ' s, but also the terahertz out put of photoconducting antenna. in this paper, the forming and movement of space - charge field are simulated by means of fdtd method
觸發條件下光電導體內部電場不僅顯著的影響光電導開關產生超快電脈沖的功率、波形，而且對thz偶極天線的輻射功率也有明顯的影響。Abstract : blasting mechanism of exploding wires used for a new type of srtong pulsed ir source is studied theoretically and experimentally
文摘:利用電爆絲的一種紅外脈沖強光輻射新技術，從理論和實驗上研究了電爆絲的爆炸機理。With the development of science and technology, more and more oxide crystals are synthesized by more and more advanced technique, the new oxide crystals are incessantly synthesized and the new characters of oxide crystals are incessantly founded. corundum dopped with impurity not only is cherished because of it ' s beautiful appearance, but also is used in the fields such as electrotechnics, mechanism, laser, the optic apparatus and the underlay of semiconductor. sapphire dopped with ti3 + is the best material of the tunable solid laser. zno crystal is material of the direct gap semiconductor ( the width of forbidden band : 3. 37ev ). the excited emission in zno crystal at room temperature has been found, so the ultraviolet luminescence in zno semiconductor can be acquired at room temperature
含有少量雜質的剛玉晶體（ - al _ 2o _ 3 ）不僅由於其色澤艷麗成為人們珍愛的名貴寶石，而且由於它具有的優異性能，被廣泛應用於電工、機械、激光器，光學器件和半導體襯底材料。鈦藍寶石是目前最優異的固體寬帶調諧激光材料，用於製作飛秒脈沖可調諧激光器。氧化鋅晶體是直接帶隙寬禁帶半導體材料（禁帶寬度3 . 37ev ） ，現已發現具有室溫下受激發射特性，有可能實現室溫下半導體紫外發光。Giant radio pulse
巨射電脈沖Point type heat fire detector meets the requirements of gb4716 - 1993. the test itemsinclude electrostatic discharge, radiated electromagnetic fields, and electrical transient bursts
點型感溫火災探測器應符合gb4716 - 1993標準的要求。檢測項目有：靜電放電；輻射電磁場；電快速瞬變脈沖群。Simulation calculation for the energy deposition profile and the transmission fraction of intense pulsed electron beam at various incident angles
不同入射角度下強流脈沖電子束能量沉積剖面和束流傳輸系數模擬計算This served to create output pulses proportional to the number of electrons emitted.
這個裝置用於產生與發射電子數成正比的脈沖輸出。Meanwhile, under the condition of continuous wave radiant, how to get the time difference precisely in the low signal noise ratio become another problem. the paper firstly introduce basic principle of the tdoa location technology while the merits and demerits is also given
同時，電子戰中不僅有大量脈沖輻射源，而且還有連續波輻射源的現狀使得怎樣在信噪比較低的條件下準確無誤得到輻射源的時差也是該領域一個難點。The dissertation is aimed at the theory and practical application of photoconductive semiconductor switches ( pcss ), which is the kernel of uwb photoconductive pulse source. in chapter 1, after introducing the background of the dissertation, the development of uwb photoconductive pulse source is briefly reviewed. at the same time, the main work and contribution is generalized
本文以研究超寬帶光導脈沖源的核心光導開關的工作原理和實際應用為目的，模擬了光導開關在線性模式下的輸出電脈沖，研究了以光導開關為核心器件的電脈沖成形電路，以及電脈沖的傳輸和輻射。Astronomers expect it to continue to spin down, eventually reaching a point when its rotation will be too slow to power the radio pulses
天文學家預期它的自轉會繼續變慢，直到它慢得不足以發射無線電脈沖為止。分享友人