RADIOWAVE LOCATION DETECTOR FOR BEARING AND POSITION DETERMINATION

摘要

A detection apparatus is provided to detect the direction of arrival and the position of an emission source of radio wave with high accuracy. The apparatus comprises; a first and a second directional antenna 1 and 10 which rotates with a desired angle of elevation; a first and a second phase integral means 2 and 11 for outputting an integration of the output from an antenna; a first and second phase differential means 3 and 12 for outputting an difference of the outputs from an antenna; a first and a second frequency dividing means 4 and 13 for dividing frequency of the integral component of the output from an antenna; a first and a second differential gain control means 5 and 14 for controlling a gain of the differential component of the output from an antenna; a first and a third receiving means 6 and 15 for receiving an output of the frequency dividing means; a second and a fourth receiving means 8 and 17 for receiving an output of the differential gain control means; a first and a second subtraction means 7 and 16 for subtracting one detection signal output from the other detection signal output of each of receiving means 6 and 8 and receiving mans 15 and 17; a first and a second calculation means 9 and 18 for determining a direction of arrival of radio wave based on an output from the subtraction means; and a position determining calculation means 19 for determining the position of the emission source of the radio wave based on an output from the calculation means.