DISTANCE ESTIMATION DEVICE, MOBILE TERMINAL, DISTANCE ESTIATION METHOD, AND PROGRAM

A phase rotation amount of each of subcarriers is calculated by calculating a difference between the first phase difference and the second phase difference between consecutive subcarriers included in radio signals, and performing phase addition processing based on the difference. A characteristic co...

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Bibliographische Detailangaben
Hauptverfasser:	Morishita, Keiichi, Yasui, Jun
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES MEASURING MULTIPLEX COMMUNICATION PHYSICS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING
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Beschreibung
Zusammenfassung:	A phase rotation amount of each of subcarriers is calculated by calculating a difference between the first phase difference and the second phase difference between consecutive subcarriers included in radio signals, and performing phase addition processing based on the difference. A characteristic coefficient regarding a change rate of the phase rotation amount of each of the subcarriers with respect to a frequency is calculated by performing a linear regression analysis of the relationship between a frequency and the phase rotation amount, and a distance is estimated based on the characteristic coefficient.