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For improving the range accuracy of LFMCW Radar with triangle wave modulation, frequency estimation performance of Jacobsen algorithm and Quinn algorithm are discussed. When the signal frequency is close to the midpoint of two neighboring discrete frequencies, Jacobsen algorithm has poor accuracy, while Quinn algorithm has good one. A novel combined algorithm named J-Quinn algorithm is proposed. Firstly,...
With the rapid development of all sectors of society, industrial production, national security and daily life of the network video surveillance systems have become increasingly demanding, but at present real-time video communications in the network and clarity so there are still many technical difficulties have Meanwhile, the extensive application of monitoring systems also made on the cost of higher...
Edge detection is very important in image process. According the three standards in edge detection: optimal detection result, optimal location and low repeat response, optimal linear filter is deduced. Base on the standards, a simple BMP edge Detection algorithm is proposed, improved algorithm and color scope D algorithm are given. Experiments prove that running speed of algorithms is satisfied and...
A novel Hybrid Clustering Algorithm (HCA) that incorporates the K-means into the canonical Immune Programming Algorithm (IPA) is proposed after analyzing the advantages and disadvantages of the classical k-means clustering algorithm in the paper. The theory analysis and experimental results show the algorithm not only avoids the local optima and is robust to initialization, but also increases the...
This paper compared the LST retrieval algorithm between single-channel and split-window for high-resolution thermal infrared camera. MODTRAN was used to ascertain the atmospheric coefficients of the generalized split-window algorithm and JM&S single-channel algorithm based on TIGR database. Algorithm fitting precision analysis and the sensitivity analysis of the two algorithms were carried out...
Cognitive radio networks is recognized as the technology to solve the problem of spectrum shortage and promote the efficient use of the spectrum. However, the research of CR networks technologies only stays in the theoretical stage recently. Therefore, developing a CR networks platform becomes an urgent problem to solve. Several CR platforms have being deployed by the research community. However,...
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