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Spectrum sensing detector and spectrum sensing detection method thereof

A spectrum sensing and detector technology, applied in the field of spectrum sensing detectors

Inactive Publication Date: 2016-10-05
INSTITUTE FOR INFORMATION INDUSTRY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The signal value processing unit calculates the signal variable value according to the signal autocorrelation value and signal cross-correlation value

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  • Spectrum sensing detector and spectrum sensing detection method thereof
  • Spectrum sensing detector and spectrum sensing detection method thereof
  • Spectrum sensing detector and spectrum sensing detection method thereof

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Embodiment Construction

[0049] The content of the present invention will be explained through the embodiments below. It should be noted that the embodiments of the present invention are not intended to limit the present invention to be implemented in any specific environment, application or special method as described in the embodiments. Therefore, the descriptions of the embodiments are only for the purpose of explaining the present invention, rather than limiting the present invention, and the scope of the present application shall be determined by the claims. In addition, in the following embodiments and drawings, elements not directly related to the present invention have been omitted and not shown, and the dimensional relationship between the various elements in the following drawings is only for easy understanding, not for limitation actual ratio.

[0050] Please refer to figure 1 , which is a schematic diagram of a spectrum sensing detector 1 according to the first embodiment of the present ...

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Abstract

A spectrum sensing detector and a spectrum sensing detection method thereof are provided. The spectrum sensing detector receives a radio signal, and generates a plurality of digital signals according to the radio signal. The spectrum sensing detector calculates a plurality of signal autocorrelation values and a plurality of signal cross-correlation values according to the digital signals, and calculates a signal variable value according to the signal autocorrelation values and the signal cross-correlation values. The spectrum sensing detector determines that the radio signal includes a user radio signal after deciding that the signal variable value is greater than a signal threshold value.

Description

technical field [0001] The present invention relates to a spectrum sensing detector and its spectrum sensing method; more specifically, the spectrum sensing detector and its spectrum sensing method of the present invention perform multi-branch processing on radio signals, and calculate multiple Signal auto-correlation values ​​and cross-correlation values ​​are used to subsequently determine whether the radio signal has a user radio signal. Background technique [0002] In a Cognitive Radio System (CRS), the Spectrum Sensing technology is mainly used to sense the spectrum usage status in the network, so as to judge the usage mode of the spectrum later. Specifically, when the user device intends to communicate in the cognitive radio system, it must first confirm whether other user devices are communicating in the transmission frequency band, so as to avoid interference to the user device communicating in the transmission frequency band. However, in the prior art, the confirm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B17/382
CPCH04B1/1027H03F3/24H04B2001/0408
Inventor 何建兴王巍兴
Owner INSTITUTE FOR INFORMATION INDUSTRY