Acoustic Siren for Generating Wide‐Band Noise

نویسندگان
چکیده

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Sea Technology: Multi-Carrier Wideband Acoustic Communications

An alternative method for communicating over frequency-selective channels is multi-carrier modulation. In a multi-carrier system, the available bandwidth is divided into many narrow subbands, such that the channel distortion appears as flat (frequency-nonselective) within each subband. Thus, no equalization is needed per subband. Instead, modulation and demodulation have to be performed over mu...

متن کامل

Assessment of Conductive Dysfunction: Wideband Acoustic Immittance

The conductive mechanism plays an important role in our hearing: the first stage of signal processing in the auditory system. While it consists of the ear canal, the crucial portion is the middle ear system, which transforms airborne sound into mechanical vibration and helps improve sound transmission into the fluid-filled inner ear. Hearing loss due to dysfunction of the middle ear system may ...

متن کامل

Wideband acoustic immittance: Concepts and clinical utility

Measurements of middle ear (ME) acoustic power flow and related measures (e.g., reflectance, absorbance, impedance, resistance, and reactance) have several important advantages over other measures of acoustic impedance, such as the clinical “gold standard” measure, tympanometry. In addition to its wide bandwidth and ease of use, the absorbance curve, on a dB scale, has a shape that is similar t...

متن کامل

SIREN - A Network Infrastructure for Emergencies

In emergencies or disasters a key support factor for situation awareness, decision making and response is to provide a secure and dependable network infrastructure that aggregates connectivity over all available heterogeneous wireless broadband access technologies, including those employed for commercial network access. The infrastructure must be able to adapt to mission critical application re...

متن کامل

Three-dimensional digital beamforming for near-field wideband acoustic imaging

To generate volumetric acoustic images, a planar array of sensors is required to collect the signals coming from a 3-D scene. The method most frequently used to process the acquired signals is a digital beamforming algorithm. In general, due to the high number of sensors and beam signals, the computational load is prohibitive for real-time image generation. In this paper, the options for a freq...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: The Journal of the Acoustical Society of America

سال: 1959

ISSN: 0001-4966

DOI: 10.1121/1.1930138