multiple detector 中文意思是什麼
multiple detector
解釋
多重探測器-
Traditional multiuser detector make good use of all signals which resuilt in multiple access interference so that it provides optimum mai resistance. ( 1 ) nevertheless, it assumes that the receiver can acquire the signature waveform and timing of desired user and the interfering users ; ( 2 ) it has no ability to suppress intercell multiple access interference ; ( 3 ) it cannot be applied in downlink channels. adaptive multiuser detector eliminates the need to know the signature waveforms and the timing of the interferes and has to need training data sequences for every active user
傳統多用戶檢測在單用戶檢測技術基礎上，充分利用造成多址干擾的所有用戶的信息進行聯合檢測，從而具有良好的抗多址干擾能力，但存在一些缺陷： （ 1 ）不僅要求知道期望用戶的地址pn碼及其定時信息，還要求其他干擾用戶的地址pn碼及其定時信息； （ 2 ）不能消除其他相鄰小區的多址干擾對本小區的影響； （ 3 ）不能直接應用在cdma移動通信系統中的下行鏈路。 -
On the base of studying imaging theory of lens, the imaging theory of laser confocal scanning microscopy was analyzed in detail in this paper, and the advancement of that the optical fiber was applied to the system was described ; on the base of completed the demonstration for whole project, the experiment scheme was designed ; the relationship between the main parameters of key devices and the resolution was deduced, and the requirements of coupling efficiency and vignetting effects to optical system was analyzed ; the design of optical system and the planar scanning controlling circuit was completed ; a new method was put forward to resolved the inherent non - liner scanning problem of the galvanometer scanner by using software liner controlling in circuit design, and the perfect planar scanning was realized ; at last the low noise, high multiple and non - distortion amplify circuit of photoelectric detector was completed
本文在透鏡成像理論的基礎上，系統、深入地分析了共焦掃描顯微成像的機理，論述了應用單模光纖的激光共焦掃描顯微成像系統的優點；進行了總體方案的論證，並設計確定了單模光纖激光共焦掃描顯微成像系統的總體方案；從理論上推導分析了解析度要求與試驗系統中相關器件主要參數之間的關系，分析了系統耦合效率和漸暈現象對光學系統的設計要求；完成了方案中光學系統和二維掃描控制電路的設計，並在電路設計中採用了用軟體解決檢流計式光學掃描器（振鏡）非線性問題的新方法，能夠實現較為理想的二維模擬掃描；完成了高增益、低噪聲和低失真的探測接收系統的設計和調試。 -
In this paper, we focused on the application research of the multiple element detector, which is used some type of infrared guidance missile. in view of the digital signal processor, the theoretical study, the scheme for application and the simulation research of this infrared guidance system is studied in detail
針對某型採用紅外多元探測器進行目標探測的紅外製導導彈系統，本文深入、系統地分析和研究了紅外多元探測器的工作原理，並從數字信號處理器（ dsp ）實現的角度，著重開展了有關利用數字信息處理技術進行目標的位置偏差解算演算法以及提高此型導彈的抗干擾能力方法的研究。 -
1. a small and cheap 8 - bit microcontroller is used as control core. all components of the sensor, some of which are necessary for the multiple and intelligent functions, are selected ones with low cost and small package. by designing all auxiliary logic circuits in a complex programmable logic device ( cpld ), and integrating all analog circuits in an application specific ic ( asic ), the size of pcb board is greatly reduced, which make it possible that the pcb can be installed with the displacement detector together
系統採用小型廉價8位微控制器控制，電路內配置了為實現多功能智能化所必需的硬體，並全部採用低價格、小體積器件，還將所有輔助邏輯電路設計在一片復雜可編程邏輯器件cpld內，所有模擬電路集成於一片專用集成電路asic內，大大縮小了電路板尺寸，再與傳感元件組裝在一起，從而使整個系統在保證智能化功能的前提下，具有體積小、成本低、一體化和抗干擾能力強的特點。 -
Furthermore, the presentation and functions of detector set for intrusion detection are investigated, such as size and generation retries of detector set. in addition, the effects of non - complete training sets and multiple representations on the model are also discussed
論文深入分析了入侵檢測問題檢測器集的表示與特性，包括檢測器集的規模與生成重試次數等，以及非完備訓練集與多重表示法對模型的影響。 -
But its detection performance is not so good under multiple targets situation. the mgo - cfar detector ' s detection performance degrades dramatically when there is one interfering target in the reference window
但在多目標環境中的檢測性能較差，當參考滑窗中有一個干擾目標時， mgo - cfar的檢測能力就已經嚴重下降。 -
Based on ica post processing matched filter multi - user detection lets the output of traditional matched filter to initialize the ica iterations, not only the known spread information of interesting user is used to overcome the uncertainness of ica, but also the character of statistical independence is used. the simulation results show that it advances the ability of traditional detector when the signal - noise - ratio is large. keywords code division multiple access ; independent component analysis ; channel estimation ; matched filter ; blind multi - user detection
基於ica后處理的匹配濾波多用戶檢測是用傳統的檢測器的輸出來初始化ica的迭代，它不但充分利用多用戶信號的已知信息，克服了ica的不確定性問題，同時也充分利用了多用戶信號的統計獨立性，模擬實驗結果證明這種多用戶檢測演算法在高信噪的情況下，誤碼性能改善隨著信噪比的提高不斷增加。 -
In this paper, we present a multi - feature optimal fusion algorithm, inclusive of skin color, to detect one or multiple faces in color image with complex background. it is a hierarchical approach and integrates the skin color segmentation, face template matching and a neural network frontal face detector. with the elimination of false areas, the search area will become smaller and smaller, and the detection will be accomplished eventually
該演算法是一種層次式、由粗到精的檢測方法，按照「分割-搜索」的檢測模式，將膚色分割、平均臉模板匹配與神經網路驗證結合起來，採取逐步排除的方法，一步一步縮小搜索區域，實現彩色圖像中單個或多個正面端正人臉的檢測與定位。 -
Multiuser detector ( mud ) makes full use of the information of all the users that cause multiple access interference ( mai ) to detect the desired user. therefore, as compared with the conventional detector, it has better resistance capability to the mai and the so - called near - far problem. since the multi - user detector reduces the precision requirement of the power control, it can provide higher efficiency for frequency use, and thus improves the capacity of the communication system
多用戶檢測技術在傳統檢測技術的基礎上，充分利用造成mai干擾的所有用戶信號信息對單個用戶的信號進行檢測，從而具有優良的抗干擾性能，解決了遠近效應問題，降低了系統對功率控制精度的要求，因而可以更加有效的利用頻譜資源，顯著提高系統容量。 -
This paper first studies our nation ' s certain type of radar ' s mgo - cfar detector, mainly analyzing the detector ' s performance under homogeneous background, multiple targets situation and clutter edge situation
本論文首先對我國某型號雷達中的mgo - cfar檢測器進行分析論證，重點分析了mgo - cfar檢測器在均勻背景雜波、多目標環境和雜波邊緣環境中的性能。 -
The various performance of the mosos - cfar detector was analyzed. the result shows that the mosos - cfar detector has good performance under the homogenous background, almost the same as that of the mgo - cfar detector ; good performance against clutter edge, excellent performance under multiple targets situation, the detector ' s detection performance dropped not much when the interfering target is less than r - k1 - k2
計算分析了mosos - cfar檢測器的各種性能，分析表明， mosos - cfar檢測器在均勻背景雜波中的檢測性能良好，和mgo - cfar檢測器的檢測性能相近；抗雜波邊緣能力良好，但是略差於mgo - cfar檢測器；在多目標環境中的檢測性能優秀，當干擾目標數少於r - k1 - k2時，檢測器的檢測性能下降很少。 -
Multi - user detector ( mud ) is one of the key techniques for these problems in cdma systems, which deals with multiple access interference as useful information and eliminates it by utilizing correlation characteristics between signature waves. mud techniques can dramatically relax " near - far " effects, significantly improve the system ' s performance and increase the capacity of cdma systems
它將信號中的多址干擾看作一種有用信息，利用擴頻序列之間的互相關性來消除多址干擾，能減輕「遠-近」效應影響，改善系統的性能，提高系統的容量。
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