聲源定位 的英文怎麼說
中文拼音 [shēngyuándìngwèi]
聲源定位
英文
auditory localization-
In developing its new generation of hearing systems, phonak studied how the human outer ear, the pinna, localizes sound
佩戴助聽器的人常常抱怨聲音定位困難，也就是說，很難區分聲音的來源。Backed up by the soplat theory based on particle kinematics, the second chapter of this paper presents with analysis and simulation of several single observer passive measurement models, which uses such relative movement parameters as bearings changing rates and centrifugal acceleration information on the basis of bearings measurements. in the third chapter, the observability of location respectively using bearings and its changing rates information and centrifugal acceleration information is analyzed, and its observable condition is got. the fourth chapter puts forward the modified covariance extended kalman filtering ( mvekf ) against the defect of traditional extended kalman filtering ( ekf ), whose performance is simultaneously compared in the chapter with the performance of ususal tracking algorithm such as ekf, mgekf, iekf by computer simulation
在近年來提出的基於質點運動學原理的單站無源定位理論基礎上，本文第二章提出了幾種在角度測量的基礎上增加角度變化率及相對運動的離心加速度等運動學參數的單站無源測量模型，並對它們進行了分析和模擬；第三章分別對利用角度及其變化率信息定位和利用離心加速度信息定位的可觀測性進行分析並得到了相應的可觀測條件；第四章針對傳統擴展卡爾曼（ ekf ）方法的缺點，提出了一種修正協方差的擴展卡爾曼濾波（ mvefk ）方法，並將其和ekf 、 mgekf 、 iekf等常用的單站無源定位濾波方法進行了性能模擬比較；第五章通過引入雷達機動目標跟蹤方法和模型，提出了利用角度及其變化率對機動輻射源跟蹤的多級噪聲自適應方法和imm方法；第六章主要對角度變化率和離心加速度參數的獲取技術進行了研究，提出了幾種高精度測量脈沖序列多普勒頻率變化率的方法。A modified aeda algorithm for sound source localization and tracking
一種改進的aeda聲源定位及跟蹤演算法Its arnplit ' ude and phase preserve peotation, single measurement or limited measurements could n ' t present the real character of sound field, so it will be more difficult to localize a source by matched field processing or get high accuracy of source localizaion
而聲壓是一個隨機量，幅度和相位存在起伏，單次測量或少量有限次測量不能完整表達聲場特性，這就很難準確進行匹配場聲源定位，其精度得不到保證。Acoustic emission source location and analysis system
聲發射源定位及分析系統Microphone array ; sound localization ; sound tracking ; adea algorithm ; lms algorithm
麥克風陣列聲源定位聲源跟蹤aeda演算法lms演算法For successfully applying ae on detecting crack during fatigue test, noise restraining, signal locating and the building of ae features database has been deeply investigated in this thesis. in brief, the following are the primary contents : by analyzing the source of noise, several methods of restraining the noise are proposed : space filter, amplitude filter, bp filter, parameters filter, hit time setting and illustrate analysis
本文基於將聲發射技術應用到直升機部件疲勞裂紋檢測中，對噪聲的抑制、聲發射源定位的問題以及聲發射特性典型參數數據庫的構造進行了研究，主要工作如下： ?分析噪聲的來源，對如何抑制環境噪聲進行了研究。The disperse characteristics of thin plate and pipe can also be found. considering the multimode and disperse characteristics of water - filled pipe, the leak location arithmetic model was constructed
研究表明：該方法不僅可以提高聲發射源定位檢測精度，還可以得到結構的頻散特性； 3By use of gabor wavelet transform and mae technologies, the arrived time to sensors of transient ae signals of specific guided mode can be precisely obtained. as the result, the precision of leak location was improved
利用gabor小波變換方法對斷鉛聲發射信號進行時頻分析，通過確定某一頻率下某一模態導波到達傳感器的時間，較好地實現了聲發射源定位。Active detection systems, such as radar and sonar, have encountered more and more threaten in modern electronic warfare and information warfare. passive location and tracking system, which uses electromagnetic wave emitted by target, has been proved its merits of self - hiding and far - distance detecting and becomes more and more important
現代電子戰和信息戰條件下，雷達和聲納等有源探測系統受到越來越多的威脅，利用目標輻射電磁信息的無源定位系統由於其自身隱蔽和探測距離遠等優點而日顯重要。Faced with such problems, a modified adaptive eigenvalue decomposition algorithm maeda for time delay estimation is proposed, based on which an emulation system is developed. experimental results show that the proposed new algorithm works well in sound source location and moving sound source tracking, meanwhile, it overcomes the drawbacks of the traditional aeda algorithm
實驗表明在真實的聲場環境下該演算法能夠對單個聲源的三維空間位置進行實時的定位和跟蹤，系統在1 . 5m范圍內對聲源的定位誤差小於8cm ，聲源位置變化時，系統也能準確跟蹤聲源的位置。Traditional matched field processors such as linear processor. minimal variance processor, matched mode processor and so on are almost based on the processing of sound pressure, it is well anown tha sound pressure is a time - vaping qmity
傳統的聲源定位處理器有不少，如線性處理器、最小方差處理器、匹配模處理器等等幾十種，基本上都是基於聲壓場進行的信號處理。Using time difference cues, a real time 3 - d localization system is implemented, which is based on 6 - channel tdoa estimation
本研究利用時間差線索，實現了一個基於六通道時延估計演算法的實時三維聲源定位系統。Reeenly, with the development of underwater acoustic technology, matched field processing tecboques have been widely used in source localization and become one of the most boortan methods of acoustical signal processing
近年來，隨著水聲技術的不斷發展，匹配場處理技術在聲源定位中得到了廣泛應用，已經成為水聲信號處理的重要手段之一。Simulation analysis of a two - dimension acoustic localization algorithin
二維聲源定位演算法模擬Finally the above results discussed are verified by source localizaion using experimental data
文中最後運用實驗數據實現了匹配場聲源定位。After the simulation analysis and experiment data processing, we could conclude tha the inversion method of ray travel time is feasible to sotirce localizaion
從模擬和實驗數據處理的結果分析，聲傳播時延匹配場聲源定位是行之And aiming at the errors in time difference measuring, wave velocity measuring and the location mode, the resolvent is proposed
分析了產生聲源定位誤差的主要因素：時差測量誤差、波速測量誤差及定位方法引起的誤差，並提出了相應的解決辦法。Sound intensity measurements accurately capture only the sound produced by the source under test, eliminating interference from other sounds and realizing the location of the sound
聲強測量可以剔除其他聲音的干擾，準確的確定聲源的位置，即進行聲源定位。Wth the above analysis of ray travel times, a new method of source localization based on ray travel tirne is presented in ans dissendion
綜合以上分析，本文嘗試了一種新的方法?聲傳播時延的匹配場聲源定位，即運用最早到達的聲信號在相鄰基元上的時延作匹配場處理。分享友人