簡單聲源 的英文怎麼說
中文拼音 [jiǎndānshēngyuán]
簡單聲源
英文
simple sound source-
High - performance internet, voice, and video service will be available to residential and business subscribers simply by plugging into an ordinary electric outlet
高性能的上網沖浪、聲音傳遞、影像等將送達普通的家庭和企業,用戶只要很簡單地插入普通電源插槽,就能獲得一切。In this paper, there are presented that a single stationary station single target passive bearings - only tracking and data association algorithm and a simplified single stationary station multiple target passive bearing - only tracking and data association algorithm, then a single stationary station multiple target tracking problem can be regarded as a single stationary station single target tracking problem. 3. based on least square method, this paper presents the line - of - sight location method of multiple stationary station single target
針對實際無源探測網路中存在同一探測區域內只布置了一個無源聲音探測傳感器站的情況,給出了一種單靜止站單目標無源純方位定位與跟蹤的演算法,提出了一種簡單的單靜止站多目標無源純方位定位與跟蹤的演算法,從而將單靜止站多目標問題轉化為單靜止站單目標問題。Different with the traditional ifog, light beams within mz - ifog transmit along the forward direction, which avoid the kerr effect noise and the interferometric noises brought by the backward scattering and reflecting light. mz - ifog also gains a high using efficiency of light source and a strong output signal. the principle of mz - ifog is analyzed
與傳統sagnac干涉式光纖陀螺不同,此光纖陀螺結構簡單,兩路光信號採用前向傳輸,避免了後向傳輸光對光源的影響,也避免了後向散射、反射光帶來的相干噪聲以及光學kerr效應噪聲,光功率利用率高,輸出光功率大。Presently, in the design of the ventilation and heat dispersion of the cabin, only necessary wind quantity is considered simply, while detailed mode and efficiency of the ventilation and heat dispersion are not considered too. so maybe the resource is wasted by the equipment, while noise is increased and stealth ability is decreased
目前,在機組艙通風散熱的設計中,只是簡單地考慮了散熱所需的風量,而沒有考慮通風散熱的具體方式和效率,這不但造成了整個裝備對資源的浪費,同時還增加了機組艙的噪聲和降低了機組艙的隱身能力。The noise signal of passing vehicles is gathered with microphone array, and processed off line with the method of wide - band array signal processing, then the estimation of vehicle numbers can be transformed into the estimation of signal source numbers, up and down of the vehicle can be transformed into doa estimation of array signal processing. at the same time, vehicle types are classified using pca method of the pattern recognition based on vehicle noise, and some primarily study is done for vehicle recognition. at last, the result of the experiment proves this method is feasible
對麥克風陣列所採集的車輛行駛時的聲音信號,運用寬帶陣列信號處理的方法進行離線處理,並將車輛個數的估計轉化為陣列信號處理中信號源個數的估計,將車輛上下行的估計轉化為陣列信號處理中波達方向變化的估計,進而較準確地估計出了車輛的個數與行車方向;同時對所採集的車輛聲音信號應用模式識別中的主分量分析法實現了車輛的簡單分類,為實現車型識別作了一些初步的探索。First, this paper systematically and entirely analyzes the hvac - related noise sources, and briefly presents the generating mechanisms of noise in some air - conditioning equipments, and illustrates the propagation of system noise in building interior
首先,本文比較系統、全面地分析了hvac系統存在的噪聲源,並對部分空調設備的發聲機理進行了簡單地說明,同時還闡述了系統噪聲在建築內部的傳播。Thermoacoustic prime mover is an absolutely new type of compressor. it has n ' t any moving part so it can work for a long period without maintenance. waste steam and solar energy can be used as its heating - resources so that it has many applications especially for the places having no electricity supply
熱聲驅動器是一種與常規機械式壓縮機完全不同的新型驅動器,它沒有機械運動部件,可使用低品位能源,具有結構簡單、運行可靠、無維修工作時間長等優點。A rectangular box simulating the axial box of the lathe tool is manufactured ; experimental measurements of the surface vibration on the rectangular box and the acoustic field around the rectangular box corresponding to firstly a series of a homogeneous excitation and secondly two iii independent white noise excitations are taken in a semi - anechoic chamber. taking the vibratory properties as input, the properties of the sound field are calculated by the evsbpm and the sdsbpm respectively. the effectiveness and reliability of the evsbpm and the sdsbpm for the calculation of acoustic radiation problem is further verified from the comparison of the calculated results and measured ones
第五章設計加工了一模擬機床主軸箱的長方箱體,在半消聲室環境下,分別對其在單點處一系列簡諧激勵作用下和兩點處的獨立白噪聲激勵作用下的振動及其輻射聲場進行了實驗研究和分析計算,通過計算結果和實測值之間的比較,進一步驗證了改進體積源邊界合肥工業大學搏士學位論文點方法和統計分佈源邊界點方法計算振動聲輻射問題的有效性和可靠性。The comparison showed that : ( l ) farassat 1a formula is the simplest one and work well for the subsonic rotor. ( 2 ) both kirchhoff formula and k - fwh formula can predict the nonlinear noise generated by transonic rotor ; ( 3 ) when the surface is not positioned in the linear region, kirchhoff approach for rotating integration surface could lead to substantial error, but k - fwh formula can still work well
數值研究表明: farassat1a公式在預測線性噪聲方面簡單有效,適用於亞音速旋翼的噪聲預測; kirchhoff公式和k - fwh公式均能夠預測跨音速旋翼聲場,並且具有較高的精度;當聲源面位於流動非線性時, kirchhoff公式會導致很大的計算誤差,而k - fwh公式不存在這樣的問題。分享友人