檢聲器 的英文怎麼說
中文拼音 [jiǎnshēngqì]
檢聲器
英文
sound detector-
The optimum design of detector arrays for the attenuation of surface waves and of ambient noise is a complex subject.
為衰減面波和外界噪聲作檢波器組合的最佳設計是一件復雜的事情。Verification regulation of measuring condenser microphones
測試電容傳聲器檢定規程Ultrasonics. hand - held probe doppler foetal heartbeat detectors. performance requirements and methods of measurement and reporting
超聲波學.手持探頭式多普勒胎兒心音檢測器.性能要求和測量及報告方法Section ii describes the design approach and implementation of speech module on mcf5249 coldfire core. the speech codec optimizes g. 729a codes and added voice activity detection of g. 729b to save bandwidth ; the implementation of acoustic echo cancellation uses nlms algorithm and it can reduce echo though designing adaptive fir filter and speech detector ; the dtmf and cpt generate signal using two second order digital sinusoidal oscillators and detect signal by picking up the frequency information. but only get the frequency information is not enough in cpt detector, this thesis introduces a method
其中對語音編解碼器的設計採用優化g . 729a代碼達到設計要求，並在此基礎上加入g . 729b的靜音檢測模塊，以進一步降低網路傳輸帶寬;對回聲消除器的設計採用nlms演算法，通過設計自適應fir濾波器和語音檢測器達到回聲消除目的;對雙音多頻設計，信號發生端採用構造靜態參數表並通過二階正弦振蕩器產生信號，信號檢測端提取頻率信息以檢測信號;對呼叫進程音設計，除了類似雙音多頻的信號發生及頻率檢測設計外，還需要檢測信號持續時間，作者設計了一種基於匹配狀態表的方法以檢測信號持續時間。Test technique of acoustic excitation presented in this paper can discriminate if the adhesive structure is intensional enough to endure certainty draw strength, through a series of process, for example bringing draw strength to bear on adhesive structure. testing signal through microphone array, choosing signal ' s character, recognizing automatically through manual nerve network, and so on
本文介紹的粘接構件聲激勵檢測方法，通過對粘結結構施加微力、陣列傳聲器檢測信號、信號的特徵提取、人工神經網路的分類識別等一系列過程，完成了粘接結構承受拉脫力合格與否的無損預報。In principle, ultrasonic sensors are suspended over a road, which keep emitting pulse signals periodically to nearby and feed back waves to decide existence of any obstacles, thus to detect the speed, height, length, different sizes ( heavy, medium and small ) of moving vehicles and accumulative flow as well as length of motorcade. optionally, it can be applied to multitude driving lanes simultaneously for traffic data. by integrating and analyzing these measured data, the necessary figures concerning traffic flow may be obtained, which are fundamental basis guiding road buildings
本課題設計的是一種懸掛式超聲波車流多信息檢測器，通過懸掛于路面上方的超聲波探頭向路面周期性地發射脈沖信號，利用地面回波來判斷遮擋物地存在，可用於檢測行駛中的機動車車速、車高、車長、大中小分型以及累計車流量、車隊長度等信息，並可用於多個車道車流信息的同時檢測，綜合這些測量參數可獲得車流量的必要數據，可為公路建設提供必要的基礎依據。Rules for the inspection of electrodynamic cone loudspeakerof direct radiate type for export
出口直接輻射式電動錐形揚聲器檢驗規程Loudspeakers, acceptance testing of dynamic
電動揚聲器的動態驗收檢驗The research results are controlled source which has linear or nonlinear variabe frequency scan function and the seismic instruments which match with it, and the method of small group intervals, small offset, much more channels, short array length, high - frequency receivers are applied during the link of data acquisition, and that the techniques of the refraction static correction, the noise suppressing, the high - resolution velocity analysis, the wavelet length compression, the wavelet zero - phase, and the prestack migration should be applied emphasizedly during the link of data processing and interpretation
研究表明，對于城市活斷層的抗干擾高解析度淺層地震勘探，在數據採集環節應採用具有線性或非線性變頻掃描功能的可控震源和與其相匹配的地震儀器，以及小道間距、小偏移距、多接收道、短排列和高頻檢波器接收的工作方法；在數據處理與解釋環節，要重視折射靜校正技術、噪聲壓制技術、高精度速度分析技術、子波壓縮技術、子波零相位化技術和疊前偏移技術等的應用。Use in research of motorcycle exhaust control, finished muffler test and new products performance test
主要用於摩托車排放控制系統技術研究凈化消聲器成品檢測及新產品整車性能試驗等。Although there are many literatures describing ultrasonic detector for traffic flows, none of the same category has referred the techniques applied in the design herein such as multi - sensor construction, automatically establishing datum line regardless of suspension height, digital filtering and multi - lane detection as well as measuring length of motorcade
目前有關超聲波車流檢測器的文獻較多，但本設計中採用的多探頭結構、自動標定超聲波探頭的架設高度、數據濾波以及多車道測量和檢測車隊長度等技術在同類設計中未見使用。Based on the acoustic energy flow detection, the spatial energy flow suppression can obtain time - space gain in direct proportion to time - bandwidth product, which is just the main advantage of the vector transducer
基於矢量水聽器的聲能流檢測器利用空間聲能流抵消技術相對于聲壓檢測器可獲得與時間帶寬積成正比的時空增益。The count demodulator design of underwater active acoustic detecting device based on cpld
的水中主動聲探測儀計數檢波器設計Conventional detector ( single - user matched filter ) distinguishes each user by the crosscorrelation of their spread - spectrum codes. in practice, however, its performance is much deteriorated due to the existence of noise in channel and strong multi - access interference, i. e. near for effect. a new method using independent component analysis is proposed in this paper. the - received energy of signals is controlled effectively, thus the near - far effect is overcome as much as possible ; moreover, the effect that noise imposed on the detector is mostly reduced. simulations verify the effectiveness of this method
傳統檢測器（單用戶匹配濾波）利用擴頻碼之間的互相關特性來區分各用戶信號.而在實際應用中，通道噪聲和近距離用戶對遠距離用戶的強多址干擾即遠近效應，使得接收機的性能受到很大影響.本文將獨立分量分析法引入傳統接收機，有效控制接收信號的能量，從而極大地提高了接收機的抗遠近性能，同時噪聲的影響被盡可能消除.模擬結果表明了該方法的有效性和可行性Our product line includes brakes, clutches, load cells, tension indicators, analog digital tension controllers, ultrasonic tension controllers, safety chucks and web guiding equipment
我們的產品主要包括張力控制用氣動制動器離合器，張力檢測器，張力表及模擬式數字式張力控制器，超聲波張力控制器，安全卡盤和糾偏控制系統。Today, in addition to brakes, the montalvo corporation s product line includes clutches, load cells, safety chucks, indicators, web guiding equipment, as well as digital and ultrasonic web tension controllers
目前，除制動器外，蒙特福公司的產品還包括離合器，檢測器，安全卡盤，張力指示器，糾偏控制系統及數字式和超聲波張力控制器。First of all, by establishing the observation model of complex harmonic signal and complex linear chirp signal respectively under the co - jamming of additive and multiply noise, the paper constructed cyclic moment detectors of different orders, deduced snr expression of the detector through theoretic analysis, discussed the relation of detector performance and noise statistical characteristic. the curve of detection performance is obtained through monte carlo simulation test, proving the related conclusion derived
首先，論文分別以加性和乘性噪聲聯合干擾下的復諧波信號和復線性調頻信號為觀測模型，構造了基於不同階次的循環矩檢測統計量，從理論上推導出了檢測器的信噪比表達式，分析了檢測器性能與噪聲統計特性的關系，通過monte - carlo模擬試驗得到了檢測性能的曲線，驗證了推導的有關結論。Design and experiment of acousto - optic waveguide phase modulator in electro - optic integrated acceleration seismic geophone
光電集成加速度地震檢波器中聲光波導相位調制器的設計與實驗A chaos search for implementing optimal multi - user detection in cdma system has been proposed. computer simulation illustrated that this way has many powerful abilities. its capability is better than the traditional detection and the multi - series detection, it is near to the omd which was presented by verdu, and then its beginning condition is insensitivity, near - far insensitivity, eliminate interference, it can converge to global minimum point and hold down the noise interference
通過模擬證明：其性能優于傳統檢測器（ cd ） 、多級多用戶檢測器（ msd ）而接近於文獻[ 1 ]中提出的最佳多用戶檢測器（ omd ） ，具有對初始條件不敏感、對「遠近」問題不敏感和優良的抗干擾性能，並提高了通信系統的系統容量，能尋優到全局極小點，以及能抑制噪聲干擾，而且，計算復雜度較低。Conventional detectors, for example, inductive loop, detectors using ultrasonic, microwave, or infrared, have been put into use for several decades. meanwhile, a promising approach, video - based measurement system, has developed quickly. since it has many advantages, for instance, wider - area detection and superior flexibility, many researches have been done in this area
交通流檢測器有電磁感應線圈、超聲波檢測器、微波檢測器和紅外光標等多種方式，而基於圖像處理的視頻檢測方式近年發展很快，因為它具有大區域檢測、設置靈活等優越性，已成為智能交通系統的一個研究熱點。分享友人