Biological detection device

Abstract

To provide a biological detection device that can improve the accuracy of counting the number of living organisms within an observation range. [Solution] The transmitting and receiving unit receives the reflected waves of radio waves transmitted from at least one transmitting antenna to the observation range using multiple receiving antennas, and generates an intermediate frequency signal based on the transmitted signal and the received signal. The processing unit counts the location and number of living organisms within the observation range based on the intermediate frequency signal. The processing unit calculates a complex signal for each location within the observation range based on the intermediate frequency signal, which reflects the presence or absence of an object and the velocity of the object. Furthermore, based on the complex signal, it calculates a living organism determination index for each location within the observation range, whose size differs depending on whether the detected object is a living organism or not, and whose size depends on the number of living organisms. The location of living organisms within the observation range is identified and the number of living organisms is counted using the living organism determination index.

Images