Irection Of Arrival Estimation News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Stay updated with breaking news from Irection of arrival estimation. Get real-time updates on events, politics, business, and more. Visit us for reliable news and exclusive interviews.

Top News In Irection Of Arrival Estimation Today - Breaking & Trending Today

"Direction of Arrival Estimation With Gain-Phase Uncertainties in Unkno" by He Xu, Ming Jin et al.

This paper considers the problem of direction-of-arrival (DOA) estimation for narrowband source signals under the coexistence of gain-phase uncertainties and nonuniform noise. Firstly, by exploiting the low-rank property of the covariance of signal components, and the diagonal property of noise covariance, an optimization problem with low-rank constraints is formulated to estimate the nonuniform noise covariance matrix, which is then solved efficiently by the alternating direction method of multipliers (ADMM). Secondly, a linear transformation operator is employed to construct a rank reduction (RARE) estimator, and subsequently an initial DOA and gain-phase uncertainties are obtained via one-dimensional (1-D) spectral search. With initial estimates, an augmented DOA estimation is finally achieved by constructing a weighted and structured sparse total least-squares (WSS-TLS) optimization problem, which is solved using the block coordinate descent algorithm. Simulation results show the s ....

Alternating Direction Method Of Multipliers , Covariance Matrices , Irection Of Arrival Estimation , Ain Phase Uncertainties , Noise Level , Signal To Noise Ratio , Parse Total Least Squares , Nknown Nonuniform Noise ,

"Co-Prime Microphone Arrays: Geometry, Beamforming and Speech Direction" by Jiahong Zhao

A clear recording of speech is increasingly crucial for human-machine interaction with the swift development of modern electronic and smart devices employing artificial intelligence (AI) techniques, such as robots, autonomous vehicles and smart home assistants. Moreover, the outbreak of the unprecedented coronavirus disease (COVID) leads to a growing demand of remote applications in nearly all industries, including teleconferencing, remote teaching, telemedicine, hands-free telephony, mobile apps, etc. All these machines and applications cannot be successful without clear speech recordings. However, there is always noise, echoes and other interfering sounds in the real world, and the recording and processing of the target speech is highly challenging. Therefore, a high-quality, high-efficiency and low-cost speech recording and processing method with robustness to adverse environments is urgently needed.
Existing recording approaches use an array of microphones that are uniformly spa ....

Co Prime Microphone Array , Patial Aliasing , Rray Gain , Irection Of Arrival Estimation , Deep Learning ,