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
4 Cites 1 Cited by

AI-Extracted Technical Summary

Problems solved by technology

However, this technology is developed around the wireless standard free space, and does not specifically study the actual channel characteristics in the wireless body area network.
Any of the independent linear detection methods can only compl...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Abstract

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.

Application Domain

Technology Topic

Performance curvesPre treatment +6

Examples

  • Experimental program(1)
  • Effect test(1)

Example Embodiment

[0026] Example
[0027] This embodiment includes the following steps:
[0028] Step one is to preprocess the received wireless signal to obtain the general parameters of the signal and the human ECG signal, and start timing.
[0029] The general parameters reflect the basic channel characteristics of the wireless transmission channel, including: signal carrier-to-interference ratio, signal carrier-to-noise ratio, RSSI value, channel impulse response function, multipath delay distribution probability density function, and prior synchronization information of the received signal .
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

no PUM

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Similar technology patents

Classification and recommendation of technical efficacy words

  • Improve detection performance
  • Improve efficiency

System and method for detecting language voice frequency

ActiveCN104681036AImprove detection performanceGood detection stabilitySpeech recognitionLanguage modelNon targeted
Owner:SUZHOU CHIVOX INFORMATION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products