Device and method for achieving anomaly detection

Abstract

The invention discloses a device for achieving anomaly detection, which comprises a level measuring unit, a level deciding unit and an anomaly deciding unit. The level measuring unit is applied to calculating the reception level intensities of at least two paths of diversity reception signals and inputting the reception level intensities into the level deciding unit; the level deciding unit is applied to acquiring the reception level intensities of any two paths of the diversity reception signals from the reception level intensities of at least two paths of the diversity reception signals, and if the difference value between the reception level intensities of the current two paths diversity reception signals is more than a predetermined threshold value, the level deciding unit requests the anomaly detection by the anomaly deciding unit directly; otherwise, the level deciding unit performsa cross correlation detection and then requests the anomaly detection by the anomaly deciding unit. The invention also discloses a method for achieving the anomaly detection. By adopting the device and the method, effective anomaly detections can be achieved so as to ensure that an antenna diversity receiving system is in a normal operating mode.

Description

technical field [0001] The invention relates to a technology for realizing abnormal detection, in particular to a device and method for realizing abnormal detection suitable for an antenna diversity receiving system. Background technique [0002] In the field of wireless communication, fading is the main factor affecting communication quality, and the depth of fast fading can reach 30-40dB. In order to ensure that the wireless communication system provides users with the best communication quality, a solution is needed to enable the wireless communication system to overcome the influence of such deep fading. If the solution adopted is to increase the transmission power, for example, it is unrealistic to increase the current transmission power by 1000 to 10000 times to overcome the influence of this deep fading, and it will cause interference to other receivers. At present, an effective solution is to realize signal diversity reception on the receiver side, so as to achieve ...

AI Technical Summary

Problems solved by technology

The patent number is JP02260829A, and the patent named DIVERSITY SIGNAL ALARM DETECTOR proposes an abnormality detection method for a diversity receiver. level to realize fast and accurate positioning of the abnormality of the diversity receiver. The feature of this invention is that it can dynamically adjust the abnormality detection conditions of the diversity receiver according to the actual situation, and quickly and accurately judge the status of the diversity receiver. The abnormality detection described in this patent The method is not perfect, and it cannot fully and effectively detect the main abnormal factors that cause the abnormality of the diversity receiver

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