This paper presents a novel modulation scheme that is specifically designed for data of variable rate. Proposed design adopts 8PSK model and can processes signal with symbol rate even varying from 4.5Msps to 100Msps continuously. Realization on FPGA demonstrates the good performance of the proposed idea.
This paper applies Chinese word segmentation technology to the automatic extraction and description of the relationship between concepts. It takes text as corpus, matches the concept-pairs by rules and then describes the relationship between concepts in statistical methods. The paper implements an experiment based on the text in the field "respond to emergency", and optimizes speech tagging on account of experimental results, so that the relations extracted are more meaningful to emergency response. It analyzes the display order of inquiries and formulates rules of response and makes the results more meaningful. Consequently, the method turns out to be effective, and can be flexibly extended to other areas.
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