A Novel Method for Radio Propagation Simulation Based on Automatic 3D Environment Reconstruction

In this paper, a novel method to simulate radio propagation is presented. The method consists of two steps: automatic 3D scenario reconstruction and propagation modeling. For 3D reconstruction, a machine learning algorithm is adopted and improved to automatically recognize objects in pictures taken from target regions, and 3D models are generated based on the recognized objects. The propagation model employs a ray tracing algorithm to compute signal strength for each point on the constructed 3D map. Our proposition reduces, or even eliminates, infrastructure cost and human efforts during the construction of realistic 3D scenes used in radio propagation modeling. In addition, the results obtained from our propagation model proves to be both accurate and efficient

A novel method for radio propagation simulation based on automatic 3D environment reconstruction

In this paper, a novel method to simulate radio propagation is presented. The method consists of two steps: automatic 3D scenario reconstruction and propagation modeling. For 3D reconstruction, a machine learning algorithm is adopted and improved to automatically recognize objects in pictures taken from target region, and 3D models are generated based on the recognized objects. The propagation model employs a ray tracing algorithm to compute signal strength for each point on the constructed 3D map. By comparing with other methods, the work presented in this paper makes contributions on reducing human efforts and cost in constructing 3D scene; moreover, the developed propagation model proves its potential in both accuracy and efficiency.

Analysis of teaching experience based on teaching by the case method. Application to reinforcing wooden floors

The technique of reinforcement of wooden floors is a matter clearly multidisciplinary. The teaching of the subject using the "traditional" method, explaining the theory first and then proposing and solving problems has not been successful. This paper discusses the results of a teaching experiencie. It has been the teaching of the subject by the case method. The results are clearly superior to those obtained with the traditional methodology.

Analyzing smooth flowcharts : teaching structured programming in a computer-based education environment /

Vita.

An English grammar conformed to present usage : with an objective method of teaching the elements of the English language /

On spine: Complete English grammar.

An attempt to simplify English grammar : with observations on the method of teaching it /

Mode of access: Internet.

A modern, scientific, simplified, step by step, safe method for teaching safety driving in the family car; a text book for behind the wheel driver training, an educational book for better, safer, smoother, driving, a method of driving to end accidents.

Mode of access: Internet.

Lesson plans for teaching Gregg shorthand by the direct method,/

Reproduced from type written copy.

Key of Hitchcock's new method of teaching book-keeping.

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Nature displayed in her mode of teaching language to man : being a new and infallible method of acquiring languages with unparalleled rapidity : deduced from the analysis of the human mind and consequently suited to every capacity /

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Nature displayed in her mode of teaching language to man; being a new and infallible method of acquiring languages with unparalleled rapidity, Adapted to the French,

Mode of access: Internet.

A Method of teaching linear drawing : adapted to the public schools /

Mode of access: Internet.