This paper describes the basic theory of speech compression encoding and decoding algorithm in TETRA (terrestrial trunked radio) system., 研究了陆地集群无线通信（TETRA）数字集群移动通信系统的语音压缩编解码算法的基本原理。

Engineering fundamentals aren’t just for computer science students. They pay huge dividends in both your systems’ service levels and your company’s balance sheet. As an industry, we’ve gotten good at ...

Introduction: The unmanned aerial vehicle -based light detection and ranging (UAV-LiDAR) can quickly acquire the three-dimensional information of large areas of vegetation, and has been widely used in ...

1 Computer Science Department, Babcock University, Ilishan-Remo, Ogun State, Nigeria. 2 Computer Science Department, Adeleke University, Ede, Osun State, Nigeria. 3 Department of Applied Mathematics, ...

ABSTRACT: Heart disease continues to be a major global cause of death, making the development of reliable prediction models necessary to enable early detection and treatment. Using machine learning to ...

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WEST LAFAYETTE, Ind. — Trees compete for space as they grow. A tree with branches close to a wall will develop differently from one growing on open ground. Now everyone from urban planners and ...

Fire, metal, water, earth and wood. In South Korean tradition, these five elements explain personalities, relationships and even material properties. Being close to each element and balancing them in ...

1 College of Mechanical and Electrical Engineering, Hebei Agricultural University, Baoding, China 2 College of Science, Hebei Agricultural University, Baoding, China Nitrogen, as one of the important ...