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The reasoning error of existing high dimensional cloud model is large when some domains are correlated, and a correction high dimensional cloud model is proposed based on cloud model and multivariate normal distribution theory. The entropy and hyper entropy were replaced by covariance entropy and covariance hyper-entropy in the correction cloud model, which were used to describe the correlation of...
Spatial ability is not only the daily necessity of our life but also an important skill for mechanists, architects, chemists, surgeons, surveyors and cartographers. At present, whether within our country or abroad, the mathematical programs of elementary and junior high schools both list spatial ability as one of the geometry course materials. Spatial ability correlates with the concept of volume,...
The correlative interferometer is widely used for finding the direction of arrival with high accuracy, flexibility and broadband operation range. In this paper, the bias and mean squared error of these direction estimates with loss functions such as least squares, correlation coefficients and cosine function, are derived for the correlative interferometer, respectively. The explicit expressions of...
This paper introduces a DSP optimization model based on data structure transformation and memory schedule for real-time image process. This model implements 4 critical methods: image block, image dimension reduction, DMA transfer and ping-pong cache, which makes use of DSP hardware feature and optimizes the data schedule among the external and internal memory and CPU, while processing 2D digital signal...
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