band sample 中文意思是什麼
band sample
解釋
條形試樣-
The delay chip, whose delay precision can be 10ps, wide band sample - hold amplifier ( sha ), and high speed and precise analog / digital conversion ( adc ) are used in the system
能夠對5mhz以下的信號進行隨機采樣、波形顯示、頻譜分析，還能夠對採集的波形數據進行存儲、共享。 -
First, how to conduct sample and quantification of continuous time signal which is prior condition of sdr is explored in detail, and the comparison and analysis of some sample modes are given in which band pass signal sampling theorem is most important. second, multi - sample rate signal processing which is an important basis of sdr is studied. emphasis are put on decimation and interpolation those are the most fundamental process and the realization of decimation and interpolation filter
在基於中頻采樣的軟體無線電結構框架下，首先詳細探討了軟體無線電的前提條件，即如何對連續時間信號進行采樣量化，比較分析了幾種采樣的方式，其中最為重要的是帶通信號采樣定理；然後探討了軟體無線電的一個重要基礎，即多采樣率信號處理，重點討論其最基本的兩個過程抽取和內插以及抽取器和內插器的實現；接著介紹了結構簡單、適用於一級抽取的cic濾波器和適用於做2倍抽取的半帶濾波器；再次論文在總結了傳統的調制解調基礎上，結合軟體無線電器件的特點，系統的探討並實現了基於正交思想的am 、 fm 、 ask 、 fsk 、 bpsk 、 qpsk的正交調制解調演算法。 -
The advantages of simple structure, good linearity, no magnetic saturation, widely measure band make it fit sample in optical - electric current transformer nicely. while, there also have many new problems in applying rogowski coils
Rogowski線圈不僅具有結構簡單、線性度良好、無磁飽和、測量頻帶寬、動態范圍大等優點，而且體積小、重量輕，非常適合混合式光電電流互感器的取信號采樣繞組用。 -
However, a time scale of the sample bf1 has been established by the annual band counting chronology bracketed with 7 th - 230 dates
兩根石筍氧同位素曲線交叉檢驗表明建立的時間標尺具有較高精度。 -
A time scale of the sample sn has been reconstructed by a polynomial fitting with 9 dated ages and further tested by annual band counting results. in general, the fitting polynomial line is consistent with the annual band growth rate except for that the bottom part of the stalagmite ( a height between 196 to 255mm from the top )
石筍sn通過9個~ （ 230 ） th年齡的多項式擬合建立年代序列，利用清晰可數年層段檢驗表明，除底部（ > 196mm ）外其它時段基本吻合； bf1結合~ （ 230 ） th年齡和年層計數法定年，年層計數結果表明定年在測年誤差范圍之內。 -
Then ， we complete the intermediate frequency digital acquisition and tracking circuits according to the band pass sample theory, digital signal processing theory, multiple rate signal processing theory and digital filter theory
接著，基於帶通信號采樣理論，數字信號處理理論，多速率信號變換理論，數字濾波器理論，設計出了中頻數字捕獲與跟蹤電路。 -
The photoluminescence of the thin films without post heating shows that the increasing of the deposit temperature decreases the pl intensity. only the sample deposited at 450 has one evident luminescence band found nearby 523. 2nm
對復合鑲嵌薄膜光致發光特性的研究發現，在450沉積未經過退火處理的薄膜樣品中觀察到室溫光致發光現象，在523 . 2nm附近有一強的發光譜帶。 -
The band was previously associated with f - type color centers and v - type color centers, as analyzed in x - ray irradiated ysz sample. however, the absorption band observed in our experiments has a shift towards the longer wavelength ( red shift ) as comparing with that in the x - ray or neutron irradiated ysz spectra. this shift may mainly due to large local distortions near the f - type centers and the v - type centers and the presence of multiple color centers
本文通過光吸收、光熒光、 tem 、 xps測試及trim96計算分別研究了不同注量xe ~ +注入ysz前後光學性能和缺陷形態變化，以及ni ~ +注入對不同摻雜單晶al _ 2o _ 3結構和光學性能的影響，得到以下結果： （ 1 ） ysz注量達到10 ~ （ 16 ） cm ~ （ - 2 ）時，開始出現由f型和v型色心重疊而產生的吸收帶，與x射線、中子輻照相比，重離子輻照產生了更為復雜的缺陷復合體而導致吸收峰紅移。 -
Although sds - page displayed that there were several protein bands in the sample after 16h fermentation, enzymatic active stain demonstrated that there was only one band during the whole fermentation period, indicating that there is only one kind alkaline protease in the fermentation liquid
對發酵液進行sds - page和蛋白酶的活性染色分析表明，發酵液中的蛋白質種類不多，且只含有一種堿性蛋白酶。該發酵液所含蛋白酶活性能夠被絲氨酸蛋白酶抑制劑pmsf ， dfp完全抑制。 -
There are three main reasons attributed to this result as follows : firstly, i choose a wavelet transform named fivezhu wavelet <, which is different the other wavelets from the fact that fivezghu wavelet have seven 7 sample points and was decomposed a orthogonal, two - band filter bank and include a detailed part ; which can be realized by two orthogonal mirror symmetries lattice filter
為此我主要做了以下方面的工作：首先，是小波基的選取，因為小波基的選取不同於短時fourier變換。選取不同的小波基對同一圖像信號處理會得到不同的結果，就目前的幾種小波基。我選擇了五株形小波。 -
Their optical properties are characterized by z - can technique, uv - visible absorption spectrum and so on. the experimental results indicate that although large nonlinear refractive index is observed in two pbs / cds systems with different band gap, the sample of bigger band gap exhibit obvious nonlinear absorption in the range of nonresonance
另外，我們改變制備條件，得到了光學帶隙不同的pbs cds納米復合體系，並採用z -掃描技術研究了它們的非線性光學性質。兩個樣品都具有大的非線性折射率，但光學帶隙大的樣品在非共振區域表現出明顯的非線性吸收。 -
The charge related to esd can be compensated by oxygen environment, oxygen environment works mainly through making up oxygen vacancy and repairing energy band distortion in time. heating the sample and reducing defect concentration can reduce the charge related to inner defects
對于樣品表面電子受激解吸造成的充電可通過氧環境提供補償，氧環境主要是通過及時補充氧空位、修復能帶扭曲起作用的；對于電子束調制內部缺陷造成的充電可通過加熱試樣減輕缺陷濃度來補償。
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