noise measuring system 中文意思是什麼
noise measuring system
解釋
噪聲測量裝置-
The concept of irradiance signal - to - noise ratio ( snr ) on the target plane and the minimum of the irradiance that can be detected by the detector was taken as the beginning, combined with a thorough analysis of the spectrum radiating feature of the target and the sky background, the atmosphere conditions, spectral filtering and the influence that the various components in the system have on the target irradiance on the detector ' s target plane and the background irradiance snr, the equation of the flying bomb ' s effect range affected by the point of burst measuring system is made, and all related factors that have an impact on the effect range are analyzed as well
從探測器靶面上輻照度信噪比的概念、探測器的可探測輻照度最小值出發，在詳細分析目標、天空背景的光譜輻射特性、大氣條件、光譜濾波技術以及系統各環節對探測器靶面上目標與背景輻照度信噪比的影響的基礎上，推導了炸點測量系統對爆炸的飛行彈體的作用距離方程，分析了影響作用距離的諸因素。 -
This paper studies the mechanism generated from flow - noise in seawater pipeline, introduces controlling method of flow - noise, analyzes sound field characteristics of flow - noise in seawater pipeline system and the merits and demerits of measuring the flow - noise methods in and out of the pipeline. in our experiment, a test measuring device of seawater muffler is used in a measuring chamberlet to verify that a method of reverberation chamberlet is difficult to exactly measure the low frequency flow - noise in pipeline. at the same time the insertion lose of water muffler in the low frequency was measured by the measuring chamberlet method
本文分析了海水管路系統內流噪聲的產生機理，介紹了流噪聲的控制方法；分析了海水管路系統中流噪聲的聲場特性以及流噪聲管內、管外測量方法的優缺點；通過海水消聲器試驗測量臺架，利用測量小室驗證了混響箱法難以準確測量海水管路系統中的低頻流噪聲；用測量小室對水消聲器在低頻段的插入損失進行了測量。 -
In the system of the online measuring of pellets diameters, the disturbed noises during the process of collecting pellets images are mainly impulse noise and white noise
摘要在球團礦粒度在線檢測系統中，球團圖像採集過程的干擾噪聲主要是脈沖噪聲和白噪聲。 -
The methods and the experimental setups for measuring the gain and noise figure of an edfa are emphasized. we introduce how to measure the characteristics of each component of an edfa, especially the gain and absorption coefficient of an erbium doped fiber ( edf ). thirdly, four types of simple and novel l - band edfa structures with low noise, high gain and low gain ripple are proposed to satisfy the requirement of a dwdm system
基於考慮自發輻射噪聲（ ase ）的giles模型，建浙江大學博士學位論文立了這種edfa的全光增益箱制理論模型;理論和實驗分析了四種可能的光路結構、泵浦波長、光纖光柵反射波長和反射率、泵浦功率以及摻餌光纖長度等參t對其箱制特性的影響。 -
It processes these data that gathered from the optical measurement system or other 3d measuring apparatus directly without the preprocessing of wiping off noise points. user can define the resolution of the exported triangle mesh through setting a few parameters. it still can process other information of the points of cloud except for the x, y, z coordinates, such as color information ( rgb )
它可以直接處理來源於光學測量系統或者其他的一些三維測量系統的數據，而不用經過去除雜點的數據預處理過程；輸出三角形網格的解析度可以由用戶通過設置一些參數來進行控制；這個演算法還可以處理一些來自於點雲的點所帶的除了（ x ， y ， z ）坐標以外的一些信息，比如說顏色信息（ rgb ）等；此外我們還提供了幾種可以實現的紋理映射（ texturemapping ）的思路。 -
Based on the information fusion estimation theory, various information fusion structures and their algorithms are summarized, including centralized, decentralized, fusion mode and all - information mode. various kalman filters in the case of correlative infonnation arc summarized, including those with the correlation of measuring noise and system noise, those with colored noise and those in the case of one filter stimulating another. mathematical simulation results, as shown in figures 4. 3 through 4. 5, testify the validity of solving the problem of one filter stimulating another by using the method of prolonging fusion period
基於信息融合估計理論，研究和總結了多傳感器系統中的各種信息融合結構及其演算法，包括集中式、分散式、融合式和全信息融合方式；研究和總結了各種相關信息情況下的kalman濾波，包括量測噪聲與系統噪聲相關時的kalman濾波、有色噪聲條件下的kalman濾波和濾波激勵濾波條件下的kalman濾波。 -
With frame gather card and ccd, metallographic image which can be processed by computer is acquired after a serials of the applications of digital image technique such as gray level transformation, dichotomy, noise eliminating, dilation and erosion, image enhancement, boundary detection, etc. an automatic quantitative metallographic analysis system is developed with visual c + + 6. 0 to realize the measuring of the size of the metal crystalline grain, evaluation the proportion of the second tissue of the metal, micro hardness. with three - level browser / server mode and active server technology, the system gives the remote user the applying service through network to communicate and analyze the image information
利用數字圖像處理技術，對圖像採集卡或ccd攝像頭採集到的金相圖像進行灰度轉換、二值化、噪音消除、圖像增強、邊緣提取等一系列圖像預處理，獲得計算機可以處理的數字圖像；並利用visualc + + 6 . 0開發定量金相分析系統，以實現對晶粒大小、金相組織第二相相對含量、顯微硬度等參量的自動測量；採用基於browser server的三層體系結構，通過網路訪問，並利用activeserver技術給遠程用戶提供應用服務，以便於根據圖像分析結果，給出專家分析意見，實現異地分析及交流。 -
The requirements for external vibration is put forward by means of signal to noise ratio of dynamic balance measuring system
根據動平衡測試系統信噪比對外界振動提出了要求。 -
Microwave broadband low noise amplifier is the important part of the receiver system of radar, electron rivalry, remote measuring and remote control
微波寬帶低噪聲放大器是雷達、電子對抗及遙測遙控接收系統等的關鍵部件。
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