Search Results for author: Lu Ma

Found 6 papers, 0 papers with code

Vector Approximate Message Passing based Channel Estimation for MIMO-OFDM Underwater Acoustic Communications

no code implementations22 Nov 2022 Wenxuan Chen, Jun Tao, Lu Ma, Gang Qiao

Accurate channel estimation is critical to the performance of orthogonal frequency-division multiplexing (OFDM) underwater acoustic (UWA) communications, especially under multiple-input multiple-output (MIMO) scenarios.

A Lite Microphone Array Beamforming Scheme with Maximum Signal-to-Noise Ratio Filter

no code implementations19 May 2020 Lu Ma, Xin Zhao, Pei Zhao, Tengrong Su

Since space-domain information can be utilized, microphone array beamforming is often used to enhance the quality of the speech by suppressing directional disturbance.

Competitive Wakeup Scheme for Distributed Devices

no code implementations19 May 2020 Lu Ma, Haiping Zhang, Pei Zhao, Tengrong Su

Wakeup is the primary function in voice interaction which is the mainstream scheme in man-machine interaction (HMI) applications for smart home.

Simultaneous Localization, Mapping, and Manipulation for Unsupervised Object Discovery

no code implementations4 Nov 2014 Lu Ma, Mahsa Ghafarianzadeh, Dave Coleman, Nikolaus Correll, Gabe Sibley

We present an unsupervised framework for simultaneous appearance-based object discovery, detection, tracking and reconstruction using RGBD cameras and a robot manipulator.

Motion Segmentation Object +2

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