RADIO WAVE MONITORING DEVICE AND RADIO WAVE MONITORING METHOD

• Main Author: KODAMA SHINICHIRO
• Format: Patent
• Language: English; Japanese
• Published: 05.02.2015
• Subjects: ANALOGOUS ARRANGEMENTS USING OTHER WAVES; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES; MEASURING; PHYSICS; RADIO DIRECTION-FINDING; RADIO NAVIGATION; TESTING

PROBLEM TO BE SOLVED: To obtain a radio wave monitoring device which is capable of estimating the position of a radio wave emission source without requiring complicated work or device configuration.SOLUTION: The radio wave monitoring device is configured to include reception means 21, azimuth information acquisition means 22, position information acquisition means 23, radio wave collation means 24, and emission source estimation means 25. At least one reception unit is provided as the reception means 21 to receive radio waves from radio stations. The azimuth information acquisition means 22 acquires azimuth information of received radio waves. The position information acquisition means 23 acquires position information of positions where the radio waves are received. The radio wave collation means 24 determines whether radio waves received at a plurality of points more than the number of reception units 21 are radio waves emitted from the same radio station or not. If the radio wave collation means 24 determines that the radio waves received at the plurality of points are radio waves emitted from the same radio station, the emission source estimation means 25 estimates the position of the emission source of the radio waves in accordance with azimuth information and position information of respective radio waves. 【課題】複雑な作業や装置構成を必要とせずに電波の発射源の位置を推定することができる電波監視装置を得る。【解決手段】電波監視装置を、受信手段２１と、方位情報取得手段２２と、位置情報取得手段２３と、電波照合手段２４と、発射源推定手段２５とを備える構成とする。受信手段２１は、少なくとも１つ備えられており無線局からの電波を受信する。方位情報取得手段２２は、受信する電波の方位情報を取得する。位置情報取得手段２３は、電波を受信した位置の位置情報を取得する。電波照合手段２４は、受信手段２１の数より多い複数の地点で受信した電波が同一の無線局の発する電波であるかを判断する。発射源推定手段２５は、電波照合手段２４が複数地点で受信した電波が同一の無線局の発する電波であると判断したときに、各電波の方位情報および位置情報から電波の発射源の位置を推定する。【選択図】 図３