接地天線 的英文怎麼說
中文拼音 [jiēdetiānxiàn]
接地天線
英文
earth antenna-
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經營銷售:進口、國產天然膠、丁苯膠、順丁膠、丁腈膠、三元乙丙膠、丁基膠、氯璜化聚乙烯、輪胎類精細、無味、丁基、丁腈、彩色、乳膠類等多種型號天然橡膠、合成橡膠和再生橡膠;硫化促進劑、防老劑、炭黑、石蠟、硬脂酸、氧化鋅、氧化鎂、鈦白粉、古馬龍、工業硫磺粉等各種橡膠化工原輔材料;各種規格epdm彩色顆粒,天橋防滑橡膠地磚、塑膠場地、人造草坪鋪裝、各種規格防滑橡膠安全地磚、橡膠盲道磚、植草磚、樹木圍護磚、屋頂隔熱板、道路橡膠減速塊,專用綠色環保型橡膠輪胎膠粒、膠粉及成品,各類橡膠、塑料膠管、膠帶、膠板,可撓曲橡膠軟接頭,橡膠止水帶,橋梁伸縮裝置,天然膠板式橡膠支座,遇水膨脹橡膠,橡膠、塑料導風筒, pe pp pvc水管、電管、阻燃線槽,地板線槽、 mc尼龍產品、橡塑機械及配件調劑,並承接各種普通、特種橡塑、尼龍產品加工製造。Sufficient or not of the battery on the device should be carefully examined before every flying, so do the every pole, helm and gemel, whether or not is the receiving antenna drew out of the body and in straight, examine the ground effective distance for remote control without the drawing out the antenna, ensure it nomal in rang of 30 - 50 meters
1 .仔細檢查測試設備每次飛行前都應該仔細檢查設備電量是否充足,檢查飛機各個拉桿舵角鉸鏈是否正常,接收機天線是否拉出機身並拉直,在不拉出發射機天線的情況下測試地面有效遙控距離,確定30 - 50米內不發生跳舵情況。Above this 34 - m antenna, called dss - 13, is one of those large dishes of the deep space network in goldstone, california and is primarily used for receiving echoes reflected from asteroids when they are beamed by groundbased radio signals
圖上這座口徑34米的天線,編號dss - 13 ,隸屬美國加州的深空網路。當天文學家從地面向小行星發射無線電波時,小行星會把部分電波反射回地球,並由dss - 13所接收。Above ) this 34 - m antenna, called dss - 13, is one of those large dishes of the deep space network in goldstone, california and is primarily used for receiving echoes reflected from asteroids when they are beamed by groundbased radio signals
(圖上)這座口徑34米的天線,編號dss - 13 ,隸屬美國加州的深空網路。當天文學家從地面向小行星發射無線電波時,小行星會把部分電波反射回地球,並由dss - 13所接收。The precise clock source is crystal oscillator made of 74hc04 ; the mute circuit can conceal the error and solve the problem of noise ; the antenna switching circuit in the receiver is to select one antenna from two which receives signal better. it can improve the quality of the receiving audio signal, restrain the noise effectively and promote the system performance
高精度的時鐘源是由74hc04構成的晶體振蕩器;靜音電路將出錯的音頻信號進行差錯掩蓋,很好地解決了噪聲問題;接收機採用兩副天線切換工作,提高了音頻信號接收質量,有效地抑制干擾,提升了系統的性能。Smart antenna has been widely researched in communication and signal processing, the adaptive beamforming algorithm is the key technique of smart antenna. it could adaptively steer the array directional pattern to form the main narrow beams with high gain in the direction of the users " signals while deeply nulling the interference signals. it is an effective way to realize the optimal receiving of the interesting signals
智能天線技術是目前通信和信號處理等領域的研究熱點,自適應波束形成演算法的研究是智能天線的一個關鍵技術,它能夠自適應地控制天線陣方向圖在用戶信號方向產生高增益窄波束,在干擾信號方向產生較深的零陷,是實現用戶信號最佳接收的有效方法。Both the radiosonde and the ground station are equipped with antennae for reception of gps signals from at least 4 satellites ( figure 1 )
在探測過程中,無線電探空儀和地面站均裝有gps天線,可接收最少4個衛星發出的信號。Despite the tight schedule and demanding task, we overcame the difficulties and strictly followed the design drawings, completing various works including the sensor base, lightning protection grounding and infrared security system
我們克服了時間緊、任務重的困難,嚴格按照設計圖紙要求精心施工,完成了天線基座、防雷接地網、紅外線保安系統等配套設施的建設。Orient haitian hotel, located in yantai, the beautiful coastal city, with yellow sea to the east and dai mount to the west, lies at intersection belt between laishan district and zhifu district, and mid coastal road, a longest sea - view avenue in shandong peninsula, surrounded with comfortable environment and pleasant scenery
煙臺東方海天酒店煙臺財會培訓中心東方海天酒店坐落於美麗的海濱城市煙臺,地處萊山區與芝罘區交接地帶,位於山東半島最長的濱海觀光線路濱海路中段,東臨黃海西依岱山,環境幽雅,景色宜人。Wire antennas are still very popular on vehicles, ships and aircrafts. they are easily to be interference sources and sensitive bodies. in our calculation we must take account of the mutual coupling between wire antennas when they are very close
線天線在移動通信系統中被廣泛地應用,它作為許多機載、艦載、衛星、通信電子設備中電磁能量的發射和接收埠,最有可能成為輻射干擾的干擾源和敏感體,特別是當天線靠得很近的時候,必須考慮相互之間的互耦。Adaptive antenna can react to interfering signal automatically, form the beam zero points at interference and keep the signal receptions in right directions
自適應天線能自動地對干擾信號做出反應,將天線波束零點對準干擾方向,同時保持信號方向的接收能力。Unfortunately, venus express happens to be in a phase of its mission in which the geometry of the sun, spacecraft, and earth require it to use the smaller of its two dish antennas for communications ( because using the larger one would expose parts of the spacecraft to unacceptable levels of solar heating )
不幸的是, 「金星快車」所處的與太陽和地球間的位置剛巧使其只能用兩個碟型天線中較小的一個進行通信(因為使用大天線會使飛船的一部分暴露在不可接受的陽光暴曬下) 。The reflected wave will be received by the receive antenna and transferred to digital data. we can analyze the data that saved by the computer of gpr to deduce the medium ' s property, situation, location and so on. being a kind of nondestructive, untouched method, it has many advantages such as nondestructive, rapidness, simpleness and high precision, so it will have wide applications in the ways of examination, control and maintenance to road quality, especially for highway
路用探地雷達是近幾年發展起來的、應用於公路無損檢測的一項新技術,它利用超寬帶脈沖電磁波對路面結構層進行探測,當雷達發射天線發射的電磁波在路面結構層中傳播時會在介電特性突變處產生反射和透射,反射回來的波經由接收天線接收並轉化為數字信號儲存起來,通過分析探地雷達回波信號來估計路面結構層的性質、狀態和位置等特徵。The antenna, able to fit into a 2. 5 by 2. 5 cm space, can receive commands and send data to earth from the space technology 5 ( st5 ) satellites
天線的尺寸是2 . 5 2 . 5厘米,能從空間技術5號衛星接收命令,並把信息發送給地球。The reason for this is undoubtedly the water conservation projects diverting water from the yellow river that began in the qin and han dynasties 221 b. c. - a. d. 220
而天的藍色又極有層次,從頭頂開始,逐漸淡下來,淡下來,到天邊與地平線接壤的部分,就形成了一片淡淡的青煙。Instead of wastefully broadcasting personal communications ? such as cell - phone calls ? in all directions, these innovative antennas track the positions of mobile users and deliver radio signals directly to them
這種新型天線會追蹤行動用戶的位置,把無線電訊號直接發射給他們,而不會浪費地朝著四面八方播送個人通訊(比如行動電話) 。In the earth displacement respect of real - time supervisory control, the control system of gps multi - antennae will change the traditional method of a gps receiver connecting to a gps antenna, and implement data collection by the method of a gps receiver and multi - antennae
在大地位移實時監測方面, gps多天線數據控制系統( gms )改變了一臺gps接收機與一個gps天線相連的傳統做法,採用1機多天線的方法實現gps數據的採集。Noise and interference are inevitable in radar channel. they enter the received system through side or main beams, and reduce the system ’ s receiving signal - to - noise ratio ( snr )
在雷達通道中,不可避免地存在著噪聲和干擾,它們通過天線方向圖的邊波束或主波束進入接收系統,從而降低系統的接收信噪比。By building the antenna at a location with a poor effective conductivity of the ground, and by grounding the ends of the feedline / antenna, the signal is forced deep down into the earth, making the earth itself the effective radiating element
通過將天線建造在低導電性的地點,並且將饋線/天線的終端接地,信號被迫深入地球,使得地球本身成為一個有效的輻射單元。Because an antenna beam has certain width, and the antenna on the earth will point to the adjacent satellites at its side lobe, the transmitting antenna may create interfering radiation ( which is known as uplink adjacent interference ), and the receiving antenna will also be interfered ( which is known as downlink adjacent interference )
由於天線波束具有一定的寬度,地面發送天線會在指向鄰星的方向上產生干擾輻射(上行鄰星干擾) ,地面接收天線也會在鄰星方向上接收到干擾信號(下行鄰星干擾) 。分享友人