Linear detection method for signals in non-free space environment around human body
A linear detection and free space technology, applied in the field of signal processing, can solve problems such as the inability to meet the needs of signal detection and the research of actual channel characteristics, and achieve the effect of improving detection performance and efficiency
Inactive Publication Date: 2010-09-15
SHANGHAI JIAO TONG UNIV
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The invention belongs to the technical field of signal processing, and relates to a linear detection method for signals in non-free space environment around a human body, which comprises the following steps of: preprocessing received wireless signals and beginning timing; performing primary detection on the received signals by using the conventional linear detection methods respectively, and taking a linear detection method with the priority for detecting a performance curve as a primary detection method; when an electrocardiosignal of the human body meets physical realization conditions, detecting the received signals by using the primary detection method as the optimal detection method, otherwise, detecting the received signals by using an energy detection method as the optimal detection method; and in the process of detecting the received signals by using the optimal detection method, detecting again when the posture of the human body is changed or the time of a timer is greater than a time threshold. The linear detection method effectively avoids the problem that a single detection method cannot treat various channel conditions, improves the efficiency of screening the detection methods, and improves the detection performance in the non-free space environment around the human body.
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