- 光譜帶
- spectrum: n. (pl. -tra ) 1.【物理學(xué)】譜，光譜；波 ...
- band: n. 1.隊，團(tuán)，群；(盜賊等的)幫，伙。 2.(吹奏) ...
- band spectrum: 帶光譜; 帶狀光譜，帶狀譜; 帶狀譜圖; 頻帶譜
- band limited frequency spectrum: 限帶頻譜, 限制頻帶頻譜
- band limited spectrum: 限帶諧譜
下載手機(jī)詞典可隨時隨地查詞查翻譯
spectrum band中文什么意思
- 光譜帶
下載手機(jī)詞典可隨時隨地查詞查翻譯
例句與用法
- First , the apparatus of spectral irradiance calibration is set up , and ultraviolet spectrum band uses a standard lamp offered by standard metrological institute of china , while vacuum ultraviolet spectrum uses a deuterium transfer lamp
地面輻射定標(biāo)分為光譜輻照度定標(biāo)和光譜輻亮度定標(biāo)。光譜輻照度定標(biāo)中選用了鹵鎢燈作為250nm 400nm標(biāo)準(zhǔn)光源，氘燈作為200nm 300nm的傳遞光源。 - The method using wavelet packet analysis is proposed to extract fault information from vibration signal obtained from testing jig of tilting train . the vector comprised of the energy of signal in all spectrum bands is input to a feed forward neural network
利用小波包分析，將擺式車體試驗臺上采集到的振動加速度信號分解在相互獨立的頻帶之p內(nèi)，各頻帶內(nèi)的能量值形成一個向量，將其作為神經(jīng)網(wǎng)絡(luò)的輸入特征向量， 。 - Hyperspectral images consist of one - dimension spectrum and two - dimension space information . they are wildly used in resource exploration , environmental inspection , military detection , geographic prospecting , and so forth . besides the properties of common remote sensing images , the much greater number of spectrum bands and the higher spectrum resolution are the unique , hence the larger data quantity
高光譜圖像包含一維光譜信息和二維空間信息，在資源探測、環(huán)境監(jiān)視、軍事偵察、地質(zhì)勘探等眾多領(lǐng)域得到了廣泛應(yīng)用，除了具有一般遙感圖像的特征同時，它的波段數(shù)目更多，光譜分辨率更高，因而其數(shù)據(jù)量更為龐大。 - Because of the affection of noise and signal fading , in order to high data rate access and high quality , wireless communication need new technology to improve the link reliability and enhance the spectrum efficiency . mimo ( multiple input and multiple output ) can enhance the spectrum efficiency and increase channel capacity greatly , and reduce the multipath affection without spectrum band and power increasing . the 3th generation mobile communication wcdma is coming , with the purpose of putting mimo , stbc ( space time block coding ) , space diversity into practice of wcdma systems , in order to lay the foundation of 3g toward 4g , this dissertation has done some research under this background
在發(fā)射機(jī)和接收機(jī)使用多個天線進(jìn)行數(shù)據(jù)傳輸?shù)亩噍斎攵噍敵? mimo )技術(shù),可以在不增加帶寬和天線發(fā)送功率的條件下,成倍的提高頻譜利用率,提高系統(tǒng)的信道容量,還可以抗多徑干擾。第三代移動通信wcdma即將到來,為了將多天線技術(shù)( mimo ) ,空間分集技術(shù),空時編碼技術(shù)用到wcdma系統(tǒng)中去,為第三代移動通信向第四代移動通信系統(tǒng)平穩(wěn)過渡奠定一定的基礎(chǔ),需要做一些理論上的研究。 - Investigation using remote sensing ( rs ) technology can breakthrough the limits of traditional methods , make full use of its capability of integration , visualization , rapidity and vast - dimensions analysis , and get better results the paper takes the up - to - date landsat - 7 etm + data , which is the most widely used , and quickbird data , which has the highest resolution nowadays , and according the features of the data and landslides , processes the quickbird data with 1 : 10 000 dem orthophoto correction and the landsat - 7 etm + data as follows : ( 1 ) selecting optimal spectrum band : selects 753 bands as the optimal bands ; ( 2 ) image intensifying : selects the principle components processing method on the basis of comparing several image intensifying methods ; ( 3 ) rigour geometric direction : corrects the geometric distortion of the map ; ( 4 ) image fusion : mainly takes his space transform fusion and resolution fusion method , and acquires maps with higher spectrum resolution as well as space resolution . after that , the visual effect of the image has been enhanced , and the interpretation precision
采用遙感技術(shù)，可以突破傳統(tǒng)調(diào)查方法的限制，發(fā)揮其宏觀、綜合、直觀、快速的特點，取得更好的效果。論文選取目前應(yīng)用最廣的陸地衛(wèi)星最新系列l(wèi)andsat - 7etm +數(shù)據(jù)和空間分辨率最高的商業(yè)衛(wèi)星quickbird數(shù)據(jù)作為主要的數(shù)據(jù)源，根據(jù)數(shù)據(jù)的特點及滑坡災(zāi)害應(yīng)用特征，對quickbird遙感數(shù)據(jù)則基于1 ： 10000dem進(jìn)行了正射校正，對etm +遙感數(shù)據(jù)進(jìn)行了波段優(yōu)選，選取了753作為最佳組合波段；圖像增強(qiáng)，通過各種增強(qiáng)處理方法的效果對比，選擇主成分分析法對圖像進(jìn)行增強(qiáng)；幾何精校正，糾正圖像的幾何變形；影像融合，主要選取了效果較好的his空間變換融合和分辨率融合，得到的圖像既具有較高的光譜分辨率，同時也具有較高的空間分辨率。經(jīng)過上述數(shù)字處理，較好地改善了圖像的視覺效果，提高了圖像解譯的精度。