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A modified adaptive Kalman filter algorithm for the distributed underwater multi-target passive tracking system.
IF 1.2
JASA express letters Pub Date : 2025-01-01 DOI: 10.1121/10.0034764
Xuefei Ma, Jiaxin Ma, Zexu Ma, Rahim Khan, Hengliang Wu, Tingting Wang, Zhongwei Shen
{"title":"A modified adaptive Kalman filter algorithm for the distributed underwater multi-target passive tracking system.","authors":"Xuefei Ma, Jiaxin Ma, Zexu Ma, Rahim Khan, Hengliang Wu, Tingting Wang, Zhongwei Shen","doi":"10.1121/10.0034764","DOIUrl":"https://doi.org/10.1121/10.0034764","url":null,"abstract":"<p><p>A modified adaptive Kalman filter (AKF) algorithm is proposed to make underwater multi-target tracking with uncertain measurement noise reliable. By utilizing the proposed AKF algorithm with three core points, including an adaptive fading factor, measurement noise covariance adjustment, and an adaptive weighting factor, the unknown measurement noise and state vector can be estimated with good accuracy and robustness. The practical trial data verify this algorithm, and it has proven superior to all traditional algorithms in this Letter based on the results that it reduces the estimated position RMSEs by at least 10.29% while estimated velocity RMSEs by at least 52.57%.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142916627","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Frequency-differencing strategy to kickstart full-waveform inversion without cycle skipping.
IF 1.2
JASA express letters Pub Date : 2025-01-01 DOI: 10.1121/10.0034763
Rehman Ali, Trevor Mitcham, Israel Owolabi, Sarah McConnell, Nebojsa Duric
{"title":"Frequency-differencing strategy to kickstart full-waveform inversion without cycle skipping.","authors":"Rehman Ali, Trevor Mitcham, Israel Owolabi, Sarah McConnell, Nebojsa Duric","doi":"10.1121/10.0034763","DOIUrl":"https://doi.org/10.1121/10.0034763","url":null,"abstract":"<p><p>Ultrasound tomography fundamentally relies on low-frequency data to avoid cycle skipping in full-waveform inversion (FWI). In the absence of sufficiently low-frequency data, we can extrapolate low-frequency content from existing high-frequency signals by using the same approach used in frequency-difference beamforming. This low-frequency content is then used to kickstart FWI and avoid cycle skipping at higher frequencies. In simulations, the structural similarity index measure and peak signal-to-noise ratio of the reconstructed image improve by 0.28 and 8.6 dB, respectively, as a result of frequency differencing. Experiments show that internal structures can be seen with greater clarity because of frequency differencing.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142928803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A primer on low-carbon design in architectural acoustics using a case study of residential floorsa).
IF 1.2
JASA express letters Pub Date : 2025-01-01 DOI: 10.1121/10.0034783
Kristen R Murphy, Jonathan M Broyles
{"title":"A primer on low-carbon design in architectural acoustics using a case study of residential floorsa).","authors":"Kristen R Murphy, Jonathan M Broyles","doi":"10.1121/10.0034783","DOIUrl":"https://doi.org/10.1121/10.0034783","url":null,"abstract":"<p><p>Designers are increasingly tasked to reduce the carbon footprint of buildings. While core disciplines (e.g., mechanical and structural) are determining sustainable design strategies, understanding the environmental impacts of architectural acoustics is nascent. Yet, acoustic design decisions provide opportunities to minimize building carbon emissions while ensuring suitable acoustic performance. In response, this paper first motivates the need for design synergies between architectural acoustics and sustainability practices. Second, this paper educates and equips acousticians to participate in sustainable design decisions by demonstrating a life cycle assessment framework to inform the selection of low-carbon floor-ceiling assemblies in residential buildings while satisfying sound isolation requirements.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142959911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comment on "Dolphin and porpoise detections by the F-POD are not independent: Implications for sympatric species monitoring" [JASA Express Lett. 4, 031202 (2024)].
IF 1.2
JASA express letters Pub Date : 2025-01-01 DOI: 10.1121/10.0034784
Nicholas Tregenza, Julia Ivanchikova
{"title":"Comment on \"Dolphin and porpoise detections by the F-POD are not independent: Implications for sympatric species monitoring\" [JASA Express Lett. 4, 031202 (2024)].","authors":"Nicholas Tregenza, Julia Ivanchikova","doi":"10.1121/10.0034784","DOIUrl":"https://doi.org/10.1121/10.0034784","url":null,"abstract":"<p><p>Dolphin and porpoise detections by the F-POD are not independent: Implications for sympatric species monitoring, Cosentino, Marcolin, Griffiths, Sánchez-Camí, and Tougaard [(2024). JASA Express Lett. 4, 031202] address a significant issue, the reliability of the discrimination of dolphins and porpoises in recordings of their acoustic clicks by F-POD loggers, but unfortunately present a misleading interpretation of the process and results. The issues raised are already stated in a published description of the relevant KERNO-F classifier. We hope this response will clarify both the acoustic issues and how they can be best addressed.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142959913","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
On the mechanism underlying two distinct types of nonlinear sound absorption trends of porous layers.
IF 1.2
JASA express letters Pub Date : 2025-01-01 DOI: 10.1121/10.0034823
Feng Peng
{"title":"On the mechanism underlying two distinct types of nonlinear sound absorption trends of porous layers.","authors":"Feng Peng","doi":"10.1121/10.0034823","DOIUrl":"https://doi.org/10.1121/10.0034823","url":null,"abstract":"<p><p>Through non-dimensional analysis of the nonlinear sound absorption characteristics of rigid-porous layers, the results indicate that the nonlinear sound absorption trend of a porous layer (PL) at high sound pressure levels (SPLs) mainly depends on the state of flow resistance matching. When a PL is in an under-matched state, the sound absorption coefficient (SAC) will initially rise to a maximum and then gradually decline as SPL increases. Comparatively, when it is in an over-matched state, the SAC will decrease monotonically. In light of this understanding, several guidelines are proposed to improve the sound absorption performance of PLs at high SPLs.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142933812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Articulatory correlates of consonantal length contrasts: The case of Japanese mimetic geminates.
IF 1.2
JASA express letters Pub Date : 2025-01-01 DOI: 10.1121/10.0034762
Francesco Burroni, Shigeto Kawahara, Jason A Shaw
{"title":"Articulatory correlates of consonantal length contrasts: The case of Japanese mimetic geminates.","authors":"Francesco Burroni, Shigeto Kawahara, Jason A Shaw","doi":"10.1121/10.0034762","DOIUrl":"https://doi.org/10.1121/10.0034762","url":null,"abstract":"<p><p>This study investigates the articulatory correlates of consonantal length contrasts in Japanese mimetic words using electromagnetic articulography data. Regression and dynamic time warping analyses applied to intragestural timing, kinematic properties, and intergestural timing reveal that Japanese geminates are characterized by longer closure phases, longer gestural plateaus, higher tongue tip positions, larger movements, and lower stiffness. Geminates also exhibit distinct timing relationships with adjacent vowels, specifically, longer times to target that allow for longer preceding vowels. These findings shed light on the articulatory mechanisms underlying Japanese geminate production, their relationship to acoustics, and their characterization in a broader cross-linguistic perspective.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"5 1","pages":""},"PeriodicalIF":1.2,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142959912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Passive acoustic identification tags for marking underwater docking stations.
IF 1.2
JASA express letters Pub Date : 2024-12-01 DOI: 10.1121/10.0034495
Nizar Somaan, Ananya Bhardwaj, Karim G Sabra
{"title":"Passive acoustic identification tags for marking underwater docking stations.","authors":"Nizar Somaan, Ananya Bhardwaj, Karim G Sabra","doi":"10.1121/10.0034495","DOIUrl":"https://doi.org/10.1121/10.0034495","url":null,"abstract":"<p><p>Navigation of autonomous underwater vehicles requires accurate positioning information, notably during docking and homing operations. This letter demonstrates the feasibility of using a constellation of passive Acoustic Identification (AID) to enable accurate localization of a docking station by an of autonomous underwater vehicle. Scaled experiments are conducted using a pair of AID tags composed of multiple concentric hemispherical acrylic layers, each of which generates a unique backscattered acoustic signature when ensonified by a broadband ultrasonic transducer. A parameterized signal processing detection methodology is implemented to improve the detectability of AID tags in the presence of clutter.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"4 12","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142775363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Analytical solutions for acoustic vortex beam radiation from planar and spherically focused circular pistons.
IF 1.2
JASA express letters Pub Date : 2024-12-01 DOI: 10.1121/10.0034739
Chirag A Gokani, Michael R Haberman, Mark F Hamilton
{"title":"Analytical solutions for acoustic vortex beam radiation from planar and spherically focused circular pistons.","authors":"Chirag A Gokani, Michael R Haberman, Mark F Hamilton","doi":"10.1121/10.0034739","DOIUrl":"https://doi.org/10.1121/10.0034739","url":null,"abstract":"<p><p>Analytical solutions for acoustic vortex beams radiated by sources with uniform circular amplitude distributions are derived in the paraxial approximation. Evaluation of the Fresnel diffraction integral in the far field of an unfocused source and in the focal plane of a focused source leads to solutions in terms of an infinite series of Bessel functions for orbital numbers ℓ>-2. These solutions are reduced to closed forms for 0≤ℓ≤4, which correspond to orbital numbers commonly used in experiments. A scaling law for the vortex ring radius is derived, and its relevance is characterized using ray theory.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"4 12","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Case study: Evidence of long-term stability in a stereotyped whistle in a single free-ranging humpback dolphin (Sousa plumbea) found in sympatry (Tursiops aduncus).
IF 1.2
JASA express letters Pub Date : 2024-12-01 DOI: 10.1121/10.0034740
S Dines, R Probert, A Gullan, S Elwen, G Frainer, T Gridley
{"title":"Case study: Evidence of long-term stability in a stereotyped whistle in a single free-ranging humpback dolphin (Sousa plumbea) found in sympatry (Tursiops aduncus).","authors":"S Dines, R Probert, A Gullan, S Elwen, G Frainer, T Gridley","doi":"10.1121/10.0034740","DOIUrl":"https://doi.org/10.1121/10.0034740","url":null,"abstract":"<p><p>This 11-year case study describes the acoustic behaviour of a resident Indian Ocean humpback dolphin during commercial swim-with-dolphin activities in Mozambique. Combining data collected using low-cost action cameras with full bandwidth hydrophone recordings, we identified a temporally stable stereotyped whistle contour that met the SIGnature IDentification bout criteria. This whistle was produced with potential information-enhancing features (bi-phonation and subtle variations in frequency modulation). This case study provides evidence for a single, stable, stereotyped call type from a single individual in a mixed species group, contributing to the growing body of evidence for possible signature whistle use in the Sousa genus.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"4 12","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142883740","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Linear prediction on Cent scale for fundamental frequency analysis.
IF 1.2
JASA express letters Pub Date : 2024-12-01 DOI: 10.1121/10.0034516
R Gowriprasad, T Anand, Rangarajan Aravind, Hema A Murthy
{"title":"Linear prediction on Cent scale for fundamental frequency analysis.","authors":"R Gowriprasad, T Anand, Rangarajan Aravind, Hema A Murthy","doi":"10.1121/10.0034516","DOIUrl":"https://doi.org/10.1121/10.0034516","url":null,"abstract":"<p><p>Understanding the fundamental frequency and harmonic content of audio signals is crucial for many applications in music analysis, including music transcription, audio synthesis, and genre identification. This study formulates a signal processing approach combining Linear Prediction (LP) analysis and the Cent scale to accurately characterize the pitch and harmonic structure of the audio signals. Pitch tracking on the LP spectrum in the Cent scale provides more accurate and reliable pitch estimation, especially in the presence of noise or overlapping harmonics. The Cent scale aligns the harmonics of different notes more closely, making it easier to discern the correct pitch.</p>","PeriodicalId":73538,"journal":{"name":"JASA express letters","volume":"4 12","pages":""},"PeriodicalIF":1.2,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142775360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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