METHOD AND SYSTEM FOR THRESHOLD ESTIMATION OF INTRUSION DETECTION IN UWB SENSOR

摘要

PURPOSE: An intrusion sensing critical value estimating method and apparatus at an ultra wideband sensor are provided to establish a critical value for intrusion sensing of an intruder in consideration of hardware deviation. CONSTITUTION: A critical value estimating apparatus comprises ADC(Analog Digital Conversion)(110), an average reception level calculation unit(120), a critical value calculation unit(130), and an alarm generating unit(140). The ADC changes a plurality of analog type receive signals which are received from a transmission antenna into a plurality of digital type receive signals. The average reception level calculation unit receives the plurality of digital type receive signals and calculates an average reception level value. The critical value calculation unit calculates a critical value by using the average reception level value and two coefficients which are saved in advance. The alarm generating unit generates an alarm based on the critical value.