散射回聲 的英文怎麼說
中文拼音 [sǎnshèhuíshēng]
散射回聲
英文
scattered echo-
The relation is given by the target strength and waveform mutational with dividual angle and incident angle. the experiment on the intelligent underwater sail in a water tank is tested, the valuable laws of multistatic target distribution characteristic are obtained
完成了非入射方向模擬目標智能航行器聲散射特性的水池實驗，給出了目標回波的強度和波形隨聲波入射角和分置角的變化關系。The master dissertation introduces passive correlative orientation system and base theory in signal dispose briefly in the first place. the system takes tv sound fm signal from tv satation signal. the power rate of tv station signal to sound signal is ten to one. in the case of submerged by mussy weave and machine ' s hot noise, dispersed target signal is feeble
系統採用電臺的電視伴音調頻信號，其中電臺信號與伴音信號功率之比基本為10 ： 1 ，並且目標散射信號較弱，一般情況下淹沒在雜波和機器熱噪聲之下，採用常規的脈沖檢測方法很難對遠距離的目標進行檢測，而以電臺直達信號作為參考與目標回波信號進行相關檢測；系統中信號的相關處理會產生旁瓣，而強目標的旁瓣會影響附近的弱目標檢測。Owing to the anisotropic and the biharmonic nature of microwave radar backscatter on spaceborne scatterometer, and to the scatter model function nolinear and the existence of various noise sources in the measurements in addition to the model function, the retrieval wind results consist of as many as four wind directions
由於衛星散射計探視雷達回波的各向異性的雙調和性質，同時由於散射物理模型函數的非線性及信號中存在噪聲，使得常規點方式風場反演中風向有多至4個解的多解存在。With the tom set up vertically, sound waves hit the floor and bounce back into the bottom head. angling a tom slightly causes sound waves to scatter, and diffuses them
落地桶鼓垂直擺放，聲波碰到地板反射回底鼓皮。輕微調節落地桶鼓的擺放角度使聲波散射和漫反射。Ccd ), light signals from the object is covered by relay scattering when laser beam penetrates through the atmosphere. so the technique of range gate has been used in such system
當激光通過大氣時，瑞利散射將使得ccd器件接收到的目標回波信號淹沒在噪聲信號之中，因此系統中採用了距離選通技術。Digital wavelet frame denoise the transient scatter response signals
離散小波框架消除瞬態散射回波噪聲Oo ! the soldiers burst into a roar of such hearty, good - humoured laughter, in which the french line too could not keep from joining, that after it it seemed as though they must unload their guns, blow up their ammunition, and all hurry away back to their homes
士兵中間傳來了快活的哄然大笑，這笑聲透過散兵線無意中感染了法國人，看來在這場大笑之後就應當退出槍彈，炸毀發射藥，快點四散各自回家。( 2 ) in order to do more study in sonar localization, detection, estimation, it is necessary to study the special and temporal distribution characteristic of the reverberation, that is the target strength in the negation not incidence direction. in the third chapter, the scattering character principle of bistatic sonar is given
2 ）為了更深入的研究多基地聲納的定位、檢測與估計等關鍵技術，對多基地條件下，目標回波的時間和空間分佈特性，即非入射方向目標的聲散射特性進行深入的研究是十分必要的。Thirdly, the neural network method is extended into multistatic sonar localization. the error figure of the method is described. ( 5 ) in order to investigate the localization, detection and estimate, the sound scattering mechanism of underwater target for multistatic sonar should be fully understood
5 ）為了更深入的研究多基地聲吶的定位、檢測與估計等關鍵技術，對多基地條件下，目標回波的時間和空間分佈特性，即非入射方向目標的聲散射特性進行深入的研究是十分必要的。分享友人