Matches in SemOpenAlex for { <https://semopenalex.org/work/W72912496> ?p ?o ?g. }
Showing items 1 to 79 of
79
with 100 items per page.
- W72912496 endingPage "243" @default.
- W72912496 startingPage "238" @default.
- W72912496 abstract "최근에 들어 이동하는 운송체의 외부에서 발생하는 소음의 위치를 판별하는 몇가지 방법들이 개발되었고, 운송체의 저소음화 설계과정에 적용되어 지고 있다. 빔형성법은 여러개의 마이크로폰으로부터 측정된 신호의 위상차를 이용하여 소음원의 위치를 판정하는 기법으로서 비교적 복잡한 환경하에서도 좋은 결과를 얻을 수 있는 기법으로 확인되고 있다. 본 연구에서는 빔형성법을 적용하여 승용차가 주행할 때 발생하는 소음원의 위치를 판별하는 연구를 수행하였다. 정지된 소음원의 경우와는 달리 이동하는 소음원의 경우는 도플러 효과에 의하여 측정된 신호가 변형되는데, 운송체의 움직이는 속도와 마이크로폰들과의 상대적 거리차를 이용하여 보정해주는 방법을 적용하였다. 움직이는 운송체에서 발생되는 소음원은 여러 가지로 분류될 수 있는데, 본 실험에서 수행된 조건하에서는 이중 타이어 소음과 엔진에서 발생하는 소음이 가장 큰 것으로 측정되었다. Several experimental techniques for identifying the noise sources distributed over a moving vehicle have been developed recently and are used to design a low noise vehicle. The beamforming method, which uses phase information between several microphones to localize the source position, is proved to be one of the promising techniques applicable even under complicated test environments. In this study a beamforming algorithm is developed and applied to measure the dominant noise sources on a passenger car passing by. Unlike the acoustic signals from a stationary noise source, the sound generated from a moving source is distorted due to the Doppler effects. The information about the speed and relative position of the vehicle are used to eliminate the Doppler effects from the measured acoustic signal by using a de-Dopplerization algorithm. The noise generated from a moving vehicle can be grouped in many ways, however, tire noise and the noise generated from the engine are distinguishable at the speeds being tested." @default.
- W72912496 created "2016-06-24" @default.
- W72912496 creator A5054387120 @default.
- W72912496 creator A5070706032 @default.
- W72912496 date "2008-03-01" @default.
- W72912496 modified "2023-10-16" @default.
- W72912496 title "Experiments on the noise source identification from a moving vehicle" @default.
- W72912496 cites W1974678269 @default.
- W72912496 cites W1991354979 @default.
- W72912496 cites W2059123773 @default.
- W72912496 cites W2081833414 @default.
- W72912496 doi "https://doi.org/10.5139/jksas.2008.36.3.238" @default.
- W72912496 hasPublicationYear "2008" @default.
- W72912496 type Work @default.
- W72912496 sameAs 72912496 @default.
- W72912496 citedByCount "0" @default.
- W72912496 crossrefType "journal-article" @default.
- W72912496 hasAuthorship W72912496A5054387120 @default.
- W72912496 hasAuthorship W72912496A5070706032 @default.
- W72912496 hasBestOaLocation W729124961 @default.
- W72912496 hasConcept C100675267 @default.
- W72912496 hasConcept C10138342 @default.
- W72912496 hasConcept C115961682 @default.
- W72912496 hasConcept C121332964 @default.
- W72912496 hasConcept C1276947 @default.
- W72912496 hasConcept C142757262 @default.
- W72912496 hasConcept C154945302 @default.
- W72912496 hasConcept C162324750 @default.
- W72912496 hasConcept C163294075 @default.
- W72912496 hasConcept C187612029 @default.
- W72912496 hasConcept C198082294 @default.
- W72912496 hasConcept C203718221 @default.
- W72912496 hasConcept C205312793 @default.
- W72912496 hasConcept C24890656 @default.
- W72912496 hasConcept C29265498 @default.
- W72912496 hasConcept C41008148 @default.
- W72912496 hasConcept C54197355 @default.
- W72912496 hasConcept C76155785 @default.
- W72912496 hasConcept C99498987 @default.
- W72912496 hasConceptScore W72912496C100675267 @default.
- W72912496 hasConceptScore W72912496C10138342 @default.
- W72912496 hasConceptScore W72912496C115961682 @default.
- W72912496 hasConceptScore W72912496C121332964 @default.
- W72912496 hasConceptScore W72912496C1276947 @default.
- W72912496 hasConceptScore W72912496C142757262 @default.
- W72912496 hasConceptScore W72912496C154945302 @default.
- W72912496 hasConceptScore W72912496C162324750 @default.
- W72912496 hasConceptScore W72912496C163294075 @default.
- W72912496 hasConceptScore W72912496C187612029 @default.
- W72912496 hasConceptScore W72912496C198082294 @default.
- W72912496 hasConceptScore W72912496C203718221 @default.
- W72912496 hasConceptScore W72912496C205312793 @default.
- W72912496 hasConceptScore W72912496C24890656 @default.
- W72912496 hasConceptScore W72912496C29265498 @default.
- W72912496 hasConceptScore W72912496C41008148 @default.
- W72912496 hasConceptScore W72912496C54197355 @default.
- W72912496 hasConceptScore W72912496C76155785 @default.
- W72912496 hasConceptScore W72912496C99498987 @default.
- W72912496 hasIssue "3" @default.
- W72912496 hasLocation W729124961 @default.
- W72912496 hasOpenAccess W72912496 @default.
- W72912496 hasPrimaryLocation W729124961 @default.
- W72912496 hasRelatedWork W166591803 @default.
- W72912496 hasRelatedWork W2072378515 @default.
- W72912496 hasRelatedWork W2081792574 @default.
- W72912496 hasRelatedWork W2357490813 @default.
- W72912496 hasRelatedWork W2381106875 @default.
- W72912496 hasRelatedWork W2904505613 @default.
- W72912496 hasRelatedWork W2909545689 @default.
- W72912496 hasRelatedWork W2976761707 @default.
- W72912496 hasRelatedWork W774601707 @default.
- W72912496 hasRelatedWork W88772647 @default.
- W72912496 hasVolume "36" @default.
- W72912496 isParatext "false" @default.
- W72912496 isRetracted "false" @default.
- W72912496 magId "72912496" @default.
- W72912496 workType "article" @default.