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With spatial regression analysis, the cause of the hemorrhagic fever with renal syndrome (HFRS) is detected in China in 2008. The results showed that: the incidence of HFRS is influenced by six factors: latitude, longitude of regional centers, the proportion of settlement place, the proportion of grassland, average elevation, and the average precipitation in October and November. Among these factors,...
The main peak extraction method was proposed, considering the main peak uncertainty of multi-peak signal and the inadequateness of existing methods. The purpose of main peak extraction was achieved by relevant processing, and the ambiguity of sub-peak triggered was removed, the characteristic of single peak was restituted. In the same time the method was simulated, the conclusion proved that the main...
RS is a popular FH code whose chaotic features of frequency sequence is analyzed in this article and such a conclusion is achieved that RS code is of chaotic features in terms of frequency sequence. According to this conclusion, a method of FH prediction about the degree of incidence is suggested based on the phase space reconstruction of chaotic system. It is more accurate than the chaos prediction...
An algorithm is simulated and researched for direct acquiring PRN code based on the technology of band pass signal sub-sampling, utilizing the auto-correlation characteristic of the long period PRN code in BOC modulation. The algorithm is simulated and its performance is analyzed with decreasing Signal-to-Noise. The validity of the algorithm with the lower SNR is proved by simulation under band pass...
The technology of spectrum signal tracking and demodulation not only involves the designs of complex high-speed digital circuits, but also includes the designs of tracking algorithm. In the traditional design, the designers usually adopt the design methods based on FPGA&DSP to achieve all the above contents, which means that the carrier-DCO, code-DCO, the circuits of correlation and integral can...
Free-space optical (FSO) links offer an attractive alternative to the radio frequency channel for the purpose of transmitting data at very high rates. A major impairment in FSO links is the turbulence-induced scintillations of an optical wave. Spatial diversity, which involves the deployment of multiple laser transmitters/receivers, can be used over FSO links to reduce the turbulence-induced scintillations...
We present a new data mining method, called Multiple Temporal Pattern Recognition (MTPR), that is capable of mining and detecting multiple temporal patterns for characterizing and predicting significant events in the complex dynamic system data. The MTPR method first embeds the time series data into multiple phase spaces with various dimensions and time delays. Then it clusters the embedded data to...
This paper presents a new method, called multiple temporal pattern recognition (MTPR), that is capable of detecting multiple temporal patterns for characterizing and predicting events of interest in the time-evolving system data. The MTPR method embeds time series data into multiple phase spaces with various dimensions and time delays. Then it clusters the embedded data to detect the preliminary temporal...
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