spectral bandwidth 中文意思是什麼
spectral bandwidth
解釋
光譜帶寬-
Based on the propagation law of the cross - spectral density function in the space - frequency domain, the properties of polychromatic vector gsm beams through a paraxial optical abcd system are studied. the analytical propagation expressions for the cross - spectral density matrix of vector gsm beams passing through a paraxial optical abcd system are derived, which permits us to study the propagation properties of vector gsm beams, including the propagation - induced polarization changes, effect of the spectrum bandwidth and irradiance distributions in a unique way. there are some applications of the theoretical results
基於空間一頻率域中交叉譜密度函數的傳輸理論，研究了多色矢量gsm光束通過abcd光學系統傳輸時偏振特性的變化規律，首次推出了矢量高斯一謝爾模刑fgsm ）光束通過近軸abcd光學系統交叉譜密度矩陣的傳輸公式，並對矢量gsm光束傳輸中偏振的變化、譜寬的影響和強度的分佈等進行了統一研究。 -
The spectral calibration of the small spectrometer has been completed and resolution, wavelength precision and bandwidth of it are all determined
進行相關的光譜測量實驗，完成了光譜儀的光譜標定及解析度、波長精度和帶寬等性能指標的測定。 -
Abstract : by using the pulse - sequence model ， the inverse problem of amplification of broad - spectral - bandwidth laser pulse has been studied ， i. e. ， to find the initial input temporal pulse profile ， spatial profile ， spectral distribution and fluence from the required output temporal ， spatial pulse profile ， spectral distribution and fluence as well as the given amplifier parameters
文摘:採用脈沖分割模型，研究了寬頻帶激光脈沖放大的逆問題，即由所要求的輸出激光脈沖時間、空間波形、光譜分佈和能量密度，並給定放大器參數情況下，求輸入激光脈沖時間波形、空間、光譜分佈。 -
Standard test method for wavelength accuracy of spectral bandwidth fluorescence spectrometers
光譜帶寬熒光分光計的波長精密度的標準試驗方法 -
It is shown that the spectral splitting can take place in the near field, which is dependent on the spatial correlation and bandwidth of the spectral source and position parameters
研究表明，在近場會有光譜分裂出現，光譜分裂與光源的空間相干性和源光譜的譜寬以及位置參數有關。 -
Standard practice for measuring practical spectral bandwidth of ultraviolet - visible spectrophotometers
紫外線-可見分光光度計的實用光譜帶寬的測量 -
Ofdm signals have efficient spectral bandwidth, and the performance of the ofdm system against multipath fading is better than that of the single carrier modulation system
此項技術具有較高的頻帶利用率，並且與單載波調制技術相比可以更為有效的對抗無線通道中的多徑干擾。 -
Optical code multiple access ( ocdma ) communication system is a spectral spreading system. all users in the system share all the bandwidth in the same time. because of the using of the almost infinitude bandwidth in the fiber, ocdma system will become more and more important in future ultra - high speed lan and online computer communication system
光碼分多址（ ocdma ）通信系統，作為一種擴展頻譜系統，用戶同時共享所有帶寬，因為可以充分利用光纖中的巨大帶寬資源，因此在未來超高速局域網和實時計算機通信系統中將扮演重要角色。
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