Abstract: A communication device comprising: a plurality of wireless communication sections; and a control section configured to repeatedly perform a measurement process including transmission of a signal from a representative wireless communication section, reception of the signal from another communication device by the plurality of wireless communication sections, and calculation of a reliability parameter with regard to at least any of the wireless communication sections, control a selection process of selecting the representative wireless communication section each time the measurement process is repeated, and control a positional parameter determination process on a basis of the reliability parameter, the positional parameter determination process being a process of determining a positional parameter indicating a position of the other communication device on a basis of a plurality of a first incoming waves obtained through repetition of the measurement process.

Abstract: A communication device comprising: a plurality of wireless communication sections; and a control section configured to control a repetition process of repeatedly performing a measurement process, on a basis of a reliability parameter calculated through the measurement process, and control a selection process of selecting a representative wireless communication section each time the measurement process is repeated in the repetition process, the measurement process including transmission of a signal from the representative wireless communication section, reception of the signal by the plurality of wireless communication sections, and calculation of the reliability parameter with regard to at least any of the wireless communication sections.

Abstract: A positional relationship between devices that have transmitted and received signals is more accurately estimated. A control device comprising a control section configured to perform control of estimating a positional relationship between a communication device and another communication device based on a signal transmitted and received between the communication device including at least three or more antennas, and the another communication device including at least one or more antennas, wherein the control section performs the control of estimating the positional relationship by excluding a contradictory temporary result among temporary results of the positional relationship estimated based on the signal received by the communication device from the another communication device.

Abstract: A positional relationship between devices that have transmitted and received signals is more accurately estimated. An antenna device used for an arithmetic operation that is based on a signal received from a certain communication device, the antenna device comprising a first antenna, a second antenna, and a third antenna at positions meeting respective vertices of an equilateral triangle.

Abstract: A communication device comprising: a wireless communication section configured to wirelessly receive a signal from another communication device; and a control section configured to estimate a reception time of the second signal based on the expanded signal matrix that minimizes the predetermined norm, wherein the control section executes the iterative calculation separately at a plurality of stages, sets a value of the regularization parameter used for the iterative calculation at or after a second stage of the plurality of stages to a value of the regularization parameter or more used for the iterative calculation at a previous stage, and changes the value of the regularization parameter based on a reception status of the second signal during the iterative calculation at or after the second stage.

Abstract: A control device includes a control section configured to obtain a distance measurement value, and estimate a relative position of a position changeable type communication device with respect to a target space based on the distance measurement value, the distance measurement value being obtained when at least one of a plurality of position fixed type communication devices and the position changeable type communication device perform wireless communication, and indicating a distance between the at least one position fixed type communication device and the position changeable type communication device, the plurality of position fixed type communication devices including a first position fixed type communication device that is fixed inside a target space and to at least one part included in the target space, and a second position fixed type communication device that is fixed to a part different from the at least one part.

Abstract: There are provided a control device, a control system, and a program that can improve position estimation precision. A control device includes a control section configured to obtain a distance measurement value, and estimate a relative position of the position changeable type communication device with respect to a target space based on the distance measurement value, the distance measurement value being obtained when a position fixed type communication device and the position changeable type communication device perform wireless communication, and indicating a distance between the position fixed type communication device and the position changeable type communication device, the position fixed type communication device being fixed to a position that is inside the target space, and is closer to a floor part than to a ceiling part of the target space, and the relative position of the position changeable type communication device with respect to the target space being changeable.

Abstract: A communication device includes: a plurality of wireless communication sections, each of which is configured to wirelessly receive a signal from another communication device; and a control section configured to perform a detection process of detecting specific elements with regard to a plurality of correlation computation results, each of which is obtained by correlating a first signal that is transmitted from the other communication device and each of second signals at the designated interval and includes a correlation value indicating magnitude of correlation between the first signal and the second signal as an element obtained at the designated interval, and control a change process of treating a wireless communication section having earliest time corresponding to the specific element as a first wireless communication section among the plurality of wireless communication sections, treating the other wireless communication section as a second wireless communication section among the plurality of wireless co

Abstract: A communication device controls a process for determining a position of another device in accordance with a radio propagation environment. The communication device includes a wireless communication section configured to receive wireless signals from another communication device and a control section configured to calculate a reliability parameter. The reliability parameter serves as an indicator that indicates whether a first incoming wave serving as a signal detected as a signal that meets a predetermined detection standard is an appropriate process target, among the wireless signals received by the wireless communication section. The reliability parameter also controls a positional parameter determination process of determining a positional parameter indicating a position of the other communication device on a basis of the first incoming wave, and on a basis of the reliability parameter.

Abstract: To estimate a positional relationship between devices having transmitted and received signals with higher accuracy. A control device comprising: a control unit that performs control for estimating a positional relationship between a communication device having four or more antennas and another communication device on the basis of signals transmitted and received between the communication device and the other communication device, wherein the control unit applies a weight parameter based on a reliability parameter that is an index indicating a degree of whether or not a signal is appropriate as a processing target for estimating a positional relationship between the communication device and the other communication device calculated on the basis of a signal received from the other communication device by the communication device to a phase difference between adjacent antennas of the four or more antennas of the communication device, and performs control for estimating the positional relationship.

Abstract: A control device comprising: a control unit that applies a weight parameter based on a reliability parameter that is an index indicating a degree of whether or not a signal is appropriate as a processing target for estimating a positional relationship between the communication device and the other communication device calculated on the basis of a signal received from the other communication device by the communication device to a provisional positional relationship between at least two of the communication devices and the other communication device estimated on the basis of the signals transmitted and received between the communication device and the other communication device, and performs control for estimating the positional relationship between the communication device and the other communication device.

Abstract: To estimate a positional relationship between devices having transmitted and received signals with higher accuracy. A control device includes a control unit that compares reliability parameters that are indexes indicating a degree of whether or not a signal is appropriate as a processing target for estimating a positional relationship between each of the plurality of communication devices and the other communication device, calculated on the basis of the signals received from the other communication device by the communication device, and performs control for estimating the positional relationship on the basis of a signal transmitted and received between the communication device that has received a signal that is more appropriate as a processing target for estimating the positional relationship and the other communication device.

Abstract: A communication device comprising: a wireless communication section; and a control section configured to correlate a first signal with a second signal from another communication device at a designated interval, convert a data matrix including an array of a plurality of correlation computation results into a format including a matrix product of an expanded modal matrix and an expanded signal matrix, estimate the expanded signal matrix that minimizes a predetermined norm, and estimate reception time of the second signal on a basis of the expanded signal matrix that minimizes the predetermined norm.

Abstract: An authentication system includes a terminal and a key authentication unit arranged in a communication peer that communicates with the terminal. The key authentication unit receives key information of the terminal carried by a user through wireless communication and performs key authentication that verifies authenticity of the key information. The authentication system further includes detectors that are arranged at different locations and detect biological information of the user and a biometric authentication unit that uses the biological information to perform biometric authentication. The authentication system further includes a controller that controls actuation of the communication peer based on a location of one of the detectors that detected the biological information, an authentication result of the key authentication, and an authentication result of the biometric authentication.

Abstract: A communication device includes: a plurality of wireless communication sections, each of which is configured to wirelessly receive a signal from another communication device; and a control section configured to select a wireless communication section from which a specific reception time corresponding to an optimum parameter that is a reliability parameter indicating that the specific reception time is most appropriate for a processing target is detected, as a transmission communication section serving as a wireless communication section that transmits a signal from among the plurality of wireless communication sections, and configured to measure a distance between the transmission communication section and the other communication device on the basis of the specific reception time detected from a correlation computation result obtained from signals transmitted/received between the other communication device and the selected transmission communication section.

Abstract: A communication device includes: a plurality of wireless communication sections, each of which is configured to wirelessly receive a signal from another communication device; and a control section configured to detect a specific element in chronological information based on respective pulse signals received by the plurality of wireless communication sections, on the basis of respective pieces of chronological information including, as elements related to time, information that chronologically changes and that is obtained when the plurality of wireless communication sections receive the respective pulse signals transmitted from the other communication device, verify whether each of a plurality of the detected specific elements is based on the pulse signal coming through a shortest path, and estimate an angle from which the pulse signal has come while using axes extending from reference point, on the basis of the plurality of specific elements that are verified as elements based on the pulse signals.

Abstract: To provide a novel and improved control device and storage medium capable of performing control based on a positional relation with higher accuracy. A control device includes a control unit configured to perform control based on a presence area of a first communication device determined using a signal transmitted and received between the first communication device and at least one second communication device. The control unit performs control related to an operation of a controlled device in accordance with a second presence area when a first presence area determined based on a coordinate position of the first communication device on an arbitrary coordinate system associating the first communication device with the second communication device is inconsistent with the second presence area determined based on a distance between the first and second communication devices.

Abstract: To provide a novel and improved control device and storage medium capable of performing control based on a positional relation with higher accuracy. A control device includes a control unit configured to perform control based on a presence area of a second communication device estimated using signals transmitted and received between a first communication device and the second communication device. The control unit performs control based on a presence area estimated most often among a plurality of presence areas estimated from signals transmitted and received a plurality of times during a certain time length.

Abstract: A communication device controls wireless communications dependent on radio propagation environments. The communication device includes a wireless communication section configured to receive wireless signals from another communication device, and a control section configured to control a repetition process of repeatedly executing a measurement process on a basis of a reliability parameter calculated through the measurement process. The measurement process includes reception of the wireless signals and calculation of the reliability parameter serving as an indicator that indicates whether a first incoming wave is an appropriate process target, the first incoming wave being a signal detected as a signal that meets a predetermined detection standard among the received wireless signals, wherein the reliability parameter includes a third reliability parameter serving as an indicator that indicates unsuitability of a combined wave for the first incoming wave.

Abstract: A communication device controls wireless communication depending on radio propagation environments. The communication device includes a wireless communication section configured to receive wireless signals from another communication device, and a control section configured to control a repetition process of repeatedly executing a measurement process on a basis of a reliability parameter calculated through the measurement process. The measurement process including reception of the wireless signals and calculation of the reliability parameter serving as an indicator that indicates whether a first incoming wave is an appropriate process target, the first incoming wave being a signal detected as a signal that meets a predetermined detection standard among the received wireless signals, wherein the reliability parameter includes a fourth reliability parameter serving as an indicator that indicates suitability of a situation of receiving the wireless signal.