長波接收器 的英文怎麼說
中文拼音 [zhǎngbōjiēshōuqì]
長波接收器
英文
long wave receiver- 長 : 長Ⅰ形容詞1 (年紀較大) older; elder; senior 2 (排行最大) eldest; oldest Ⅱ名詞(領導人) chief;...
- 波 : Ⅰ名詞1 (波浪) wave 2 [物理學] (振動傳播的過程) wave 3 (意外變化) an unexpected turn of even...
- 接 : Ⅰ動詞1 (靠近;接觸) come into contact with; come close to 2 (連接; 使連接) connect; join; put ...
- 收 : Ⅰ動詞1 (把攤開的或分散的事物聚集、合攏) put away; take in 2 (收取) collect 3 (收割) harvest...
- 器 : 名詞1. (器具) implement; utensil; ware 2. (器官) organ 3. (度量; 才能) capacity; talent 4. (姓氏) a surname
- 長波 : long wave (l. w. ); kilometer wave; major wave; [氣象學] planetary wave長波段 long-wave band
- 接收器 : acceptor
- 接收 : 1 (收受) receive; reception; accept; [電學] receipt; receiving 2 (接管) take over; expropriat...
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A light emitting diode is used as optical source, which has single wavelength. pin photodiode is used as the photodetector
光源選用了具有分立波長的半導體發光二極體,接收部分選用了pin光電二極體器件。The use of interferometer to detect and analyze laser radiation is well known, but when the intense ratio of the laser radiation to the background natural light radiation is too small, the laser radiation cannot be detected. a novel more sensitive method for detect of wideband weak incident laser in strong background noise is introduced in this paper. the optical unit uses two wedge interferometers and two line array detectors. the incoming light radiation is divided into two beams and through the interferometers
在被動激光偵察告警中,對微弱脈沖激光信號的探測是一個難點。當探測距離相當遠或視場內接收的背景光輻射很強時,脈沖激光信號到達探測器的能量很小,會淹沒在強大的背景光信號中而探測不到。本論文提出了一種探測微弱脈沖激光信號的方法,可對強烈背景光中的激光威脅信號進行探測和告警,並給出其波長參數。But the gps receivers on the air china 757 fix the position of the aircraft to within a few metres as it begins its descent through a long valley, around an awkward ridge and down onto the new runway at linzhi
但是當中國國際航空公司的波音757客機降低飛行高度通過一條危險山脊附近的長長山谷的時候,機上的gps接收器以米的精度鎖定飛機的航向,安全降落在林芝機場的新建跑道上。Refer to the impacting - echo technology, we impacted the apex of the steel bar and incepted the reflecting stress ave through the resonator that fixed on the apex of the steel bar, and the value of the consolidating wave speed was calculated based on the time of stress wave transmitted and the length of the steel bar, so, identifying the reflecting signal is the key of the consolidating wave speed method
借鑒于沖擊回波技術,固結波速的測定方法是在鋼筋測桿的出露端施加瞬態沖擊載荷,由安設在測桿頂端的傳感器接收反射應力波信號,根據應力波的走時和測桿的長度折算固結波速的大小,因此反射信號的識別是固結波速法檢測混凝土強度的技術關鍵。In order to get the optimal wavelength pairs for two - color satellite laser ranging, with the factors including atmosphere effect, the response of the receiver and the laser considered, beginning with the precision of atmosphere correction, based on the lidar equation, the wavelength figure of merit, which can determine whether the pair is selected properly, is obtained
摘要為獲得雙波長衛星激光測距的最佳波長組合,考慮了大氣效應、接收光電器件的響應、激光器等因素,從大氣改正精度出發,利用激光雷達方程,得到了評價波長組合優劣的波長優數公式。It is composed of thirteen functin ? components including two 3 - db y - junction power splitter, two directional couplers, two waveguide attenuators and one polarizer of waveguide itself. the prominent feature of the device is that it has a beat detection function with respect to the single y - branch mioc device, and it plays an important role in improving the inertial - grade and the high precision steady - aim system because of the beat detection function. farthermore it has direct influence on the improvement of the high flexibility, shockproof and overload - resistance for the steady - aim system
器件的工作波長為1 . 3 m ,集分束器、合束器、起偏器/檢偏器、相位調制器、波導吸收器等十三個功能單元於一體,除了單y多功能集成光路器件具備的功能外,它還具有拍頻檢測功能,因而對提高慣導級和高精度穩瞄系統起著重要的作用,並直接影響著穩瞄系統的高機動性、抗沖擊力和過載能力的提高。Secondly, the wavelength of light source and the distance between the source and detector, two key parameters in reflectance sensor design, are determined according to theory in light transmitting and experiments in lab. thus the sensitivity and dependability in reflectance monitoring is improved as much as possible
本文接下來討論了反射式血氧探頭中兩個重要參數? ?光源波長的選擇和光源與接收器之間距離的確定,以保證在反射檢測中能獲得最高的血氧測量靈敏度和可靠性。The simulated results show that we can improve the sensitivity by setting the optical bias at / 2, reducing the gap of electrode, increasing the overlap integral factor, reducing the insert lose, adopting suitable segmentation number, increasing the electrode length, increasing the optical power, reducing the wavelength and the relative intensity noise and reducing the receive bandwidth ; obtain the wider bandwidth utilizing reducing the electrode length and the capacitance of modulator, segmentation the electrode ; increase the dynamic range using lowering noise, increasing the optical power at the detector and lower optical bias
通過計算得知,使傳感器相位偏置為/ 2 ,減小電極間距,提高電光重疊因子,減小器件插入損耗,採用合適的分段數,增加電極長度,增大光功率,降低激光的波長,減小相對強度噪聲,減小接收帶寬,對提高靈敏度的效果是非常明顯的。而減小天線長度,降低調制器電容,電極分段,都可以獲取較大的帶寬。降低系統噪聲;增加到達探測器的光功率,採用較低的光學偏置,都可以增大線性動態范圍。For many astronomers, interested in studying specific locations in the sky for extended periods of time, the multi - beam receiver offers no particular advantages
許多天文學家對長期研究空中的特殊區域都很感興趣,多波束接收器不提供這方面的特殊便利。The resolution of a telescope is determined by the ratio of the wavelength of the radiation received to the diameter of the instrument.
一個望遠鏡的分辨本領取決於它所接收的輻射的波長對這個儀器本身的直徑的比值。Fig. 3 integrated wind profiler and rass at sha lo wan. the rectangular antenna in the middle transmits and receives radio waves
中間的長方形天線作用是發放和接收無線電波,周邊的四個圓柱形擴音器則向空中發出聲波。分享友人