transmitting filter 中文意思是什麼
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Using photographs taken with a filter transmitting only short wavelengths, we found that 4 ? 24 % of the area of a male ' s colour pattern reflects in the uv
利用短波長的紫外線過濾相片，我們發現紫外線可以照出4 ~ 24 %的公魚色譜。 -
3. with comprehensive improvement of transponder including structural adjustment to lna ; optimization of ( phase locked loop ) pll filter ; structural adjustment to the transmitter and phase error adjustment to the intermediate frequency demodulation circuit, we have successfully enhanced sensitivity, expanded dynamic range, increased transmitting power and improved the spectrum purity ; decreased capture time for pll ; improved the signal quality after demodulation ; reduced its volume and power consumption. 4
3 、對通信機的全面改進，包括lna結構的調整、鎖相環環路濾波器的優化、發射部分結構的調整以及中頻解調電路的相差調整，提高了系統的接收靈敏度、改善了本振的頻譜純度、減少了鎖相環的鎖定時間、使中頻解調后的信號質量大為提高，同時還減少了體積、節約了系統的功耗。 -
Soft client server is secretly installed on isp, wan, host computer of important and sensitive part needed to be controlled to collect network data. after transmitting in real - time to email monitor center, pop3, information such as smtp and web - mail from these data are analysis and retrievable, password intercepted, classified and alert, mean wile the center can monitor in real - time on over 1000 nodes by controlling working status and filter condition and software refreshment etc. the system occupies less than 4 percent of system recourse under the condition of without losing package
客戶端採用隱蔽式安裝方式在需要控制的敏感地區的isp 、局域網、網吧以及上網主機上安裝，對進出的網路數據進行採集，然後將採集的數據實時發送至電子郵件監控中心，電子郵件監控中心對這些數據中的pop3 、 smtp以及web - mail電子郵件信息進行分析還原、口令截獲、歸類及報警，並根據情況對客戶端的工作狀態、過濾條件、軟體更新等進行控制操作，從而實現了對高速網路（ 100mbps以上） 、 10000個監控節點以上網路數據的實時有效監控。 -
In this thesis, first, we present the theory of sess system, the generation of the sess spreading code and its characteristics and the acquisition theory of conventional spread spectrum communication system. an efficient acquisition scheme based on periodically transmitting the synchronization head, which is composed of binary chaotic codes, using the matched filter and automatic decision threshold - level control based on a so - called constant false alarm criterion for sess system is present. the acquisition model of sess system is built and simulated in the awgn channel, the raleigh fading channel and imulti - address interfere condition
本文首先概述了自編碼擴頻通信的原理、自編碼擴頻序列的產生方法及其特性和擴頻通信系統編碼同步的理論，然後針對自編碼擴頻通信系統提出了擴頻序列捕獲方案:周期性地加入混沌序列同步碼，並採用恆虛警率匹配濾波器捕獲法;在加性白高斯噪聲通道、瑞利衰落通道和多址干擾情況下進行了模擬，分析了各種捕獲性能:在選擇性能最優的混沌序列、適當的序列長度、虛警概率及門限值的情況下，可以獲得較短的捕獲時間和較大的捕獲概率。 -
We can reduce the isi and noise by elaborately designing transmitting filter and the receiving filter when the channel is known and unaltered. however, the factual channel is time - varying and not known entirely. so the isi is always existent
在通道特性已知且恆定的情況下，通過精心設計發送和接收濾波器就可以消除碼間干擾和使噪聲的影響最小，但實際通道既不可能完全知道，也不可能恆定不變，系統碼間干擾總是存在。 -
It can interface with single chip computer expediently and transmit data by rule and line. oscillator in the infrared transmitting circuit that consisted of ne555, and can used to modulates the output from serial port of single chip computer. the integrated infrared receiver can demodulates, filter and transmit the signal to single chip computer
紅外線西北口二j匕大學悶成d匕學位咭侖文發送電路的振蕩器由ne555構成，它可對串列口輸出信號進行調制，一體化的紅外接收頭對紅外信號進行解調、濾波和整形，再送單片機處理。 -
( 2 ) data - processing module, its functions is using dsp processor to designdigital filter for the receiving signals, work out the root mean square values and phaseangle, then the phase compensation technique is applied to modify the signals, at lastexport the combining frame data. to data - output module. ( 3 ) data - output module, its functions is transmitting combining frame data toethernet controller, then send the data to the protective device
（ 2 ）數據處理模塊利用dsp處理器對接收到的數據信號進行數字濾波設計，求出相應的均方根值及相位角，並對信號進行相位補償，最後將數據組幀后傳給數據輸出模塊; （ 3 ）數據輸出模塊將組幀后的數據傳送到以太網控制器，繼而發送給二次保護測控設備。 -
Ultraviolet - transmitting filter
紫外透射濾光片
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