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Doppler ultrasonic flowmeters are based on a single ray approximation. We have studied the effect of beam spreading on the systematic Doppler flow measurement by developing a theoretical ray tracing model and validating the same with experiments. This paper will discuss experimental work and the use of ray tracing and finite element models to investigate this effect. This paper indicates some early...
In this paper, netted radar performance is evaluated in terms of the ambiguity function. A three dimensional netted radar ambiguity model has been formulated. This takes into account the third dimension of height, which was not included in previous work. A software tool has been developed to assess the netted radar ambiguity and resolution properties. Simulation results show that the degradation of...
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