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To achieve a usable range measurement feature using a Vehicle-Mounted monocular camera for ADAS (Advantage Drive Assist System), a pitch angle estimation with high accuracy is required. We propose a method for estimating pitch angle with a non-occurrence of cumulative error, and the initial pitch angle can be estimated simultaneously with only a Vehicle-Mounted monocular camera. We use the Harris-corner...
Based on 18 stations of the Asia-Pacific region, satellite visibility, DOP, availability, positioning accuracy and reliability of COMPASS are calculated and analyzed in detail. Simulation results reveal that the constellation performances, such as satellite visibility, DOP, availability, positioning accuracy and reliability of COMPASS are good under low mask angle such as 10 degrees, but the performances...
Based on SPOT5 remote sensing image in 2008, we selected two golf courses — one in urban area of Shenzhen and the other in the forest area of Shenzhen, as the two study areas. First, we made principal components analysis of the two areas for data compression and enhancing geometric information. Second, we processed the image and filtered the noise by the wavelet transformation, and the textures of...
The operation of Chinese BeiDou-2 satellite navigation system first project is in sight, the calculation and analysis of positioning performance of BeiDou-2 are necessary to understand the effect of BeiDou-2 on navigation and communication in China. The research of the paper is developed just based on this background. To ensure the safety of aviation and aerospace of navigation and communication,...
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