DISTANCE ESTIMATING DEVICE
DISTANCE ESTIMATING DEVICE
- Neue Suche nach: NAKAMURA KUNIHIKO
- Neue Suche nach: FURUTA ZENICHI
- Neue Suche nach: NAKAMURA KUNIHIKO
- Neue Suche nach: FURUTA ZENICHI
PROBLEM TO BE SOLVED: To provide a distance estimating device that is enabled to estimate with high accuracy over a wide range the distance between a transmitter and a receiver.SOLUTION: An arithmetic unit 39 multiplies frequency differences between signals SB of two frequencies at plural stages out of signals received by a receiver unit 42, and performs logical determination by comparing each of phase differences with a threshold. In this way, it is made possible to assess the values of phase differences Δφ in fine logical analysis. A processing control unit 41 estimates the master/slave distance according to the result of logical determination by the arithmetic unit 39. As a result, it is made possible to estimate distances by using the phase differences subjected to fine logical analysis.SELECTED DRAWING: Figure 6
【課題】送信装置と受信装置との間の距離を広範囲で高精度に推定できるようにした距離推定装置を提供する。【解決手段】演算部３９は、受信部４２により受信された信号のうち２つの周波数のシグナルＳＢの周波数差を複数段階に所定倍し、位相差をそれぞれ閾値と比較することで論理判定する。これにより位相差Δφの値を細かく論理化できる。処理制御部４１は、演算部３９の論理判定結果に応じてマスタスレーブ間の距離を推定する。このため、細かく論理化された位相差を用いて距離を推定できる。【選択図】図６
Dokumentinformationen
DISTANCE ESTIMATING DEVICE
距離推定装置
2017-01-05
Patent
Elektronische Ressource
Japanisch
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