Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a reception antenna that receives a reflected wave that is the transmission wave having been reflected, and a control unit. The control unit detects a target by using a constant false alarm rate, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The control unit establishes reference regions non-contiguously in a distance direction and a relative velocity direction with respect to a test region in a two-dimensional distribution of signal intensities based on the reception signal in the distance direction and the relative velocity direction. The control unit sets a threshold for use in detection of the target, based on an order statistic among the signal intensities in the reference regions.

Abstract: An electronic device includes a transmission antenna that transmits a transmission wave, a reception antenna that receives a reflected wave that is the transmission wave having been reflected, and a control unit. The control unit detects an object that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The control unit estimates a time taken by the object to arrive at the mobility device, based on the transmission signal and the reception signal, and notifies a mobility device control unit that controls the mobility device of detection of the object in accordance with the time.

Abstract: An electronic device includes a transmission antenna, a reception antenna, and a controller. The transmission antenna transmits a transmission wave. The reception antenna receives a reflected wave that is the reflected transmission wave. The controller detects an object that reflects the transmission wave, based on a transmission signal transmitted as the transmission wave and a reception signal received as the reflected wave. The controller configures a transmission signal in a second frame among a plurality of frames of the transmission wave differently from a transmission signal in a first frame among the plurality of frames.

Abstract: An electronic device detects an object reflecting transmitted waves based on transmitted signals transmitted as the transmitted waves from transmitting antennas and received signals received from receiving antennas as reflected waves obtained by reflection of the transmitted waves. The electronic device determines that the object have been detected when the peak in the result obtained by performing a Fourier transform process on the beat signals generated based on the transmitted and received signals is equal to or higher than a predetermined threshold value. The electronic device sets a predetermined threshold value based on an object detection probability.

Abstract: This electronic device comprises a plurality of transmitting antennas installed in a mobile body and a transmission controller configured to control transmitted waves to be transmitted from the plurality of transmitting antennas to form a beam in a predetermined direction. The transmission controller controls the predetermined direction in which the beam is formed according to a steering direction of the mobile body.

Abstract: An electronic apparatus includes a transmission unit, a reception unit, and a controller. The transmission unit transmits a transmission wave. The reception unit receives a reflected wave of the transmission wave reflected by an object. The controller operates the transmission unit in one of a plurality of operation modes having different detection distances. When the reflected wave is received by the reception unit, the controller determines a distance between the electronic apparatus and the object, based on the transmission wave and the reflected wave. The controller operates the transmission unit in an operation mode having the detection distance that includes the distance to the object and is the shortest, from among the plurality of operation modes.

Abstract: An electronic device comprises: a transmission antenna configured to transmit transmission waves; a reception antenna configured to receive reflected waves resulting from reflection of the transmission waves; and a controller. The controller is configured to detect an object reflecting the transmission waves, based on a transmission signal transmitted as the transmission waves and a reception signal received as the reflected waves. The controller is configured to classify a detection result of the object reflecting the transmission waves depending on a degree of certainty, and output the classified detection result.

Abstract: An electronic device comprises a plurality of sensors and a main controller. The plurality of sensors are each configured to detect, based on a transmission signal transmitted from a transmission antenna as transmission waves and a reception signal received by a reception antenna as reflected waves, an object reflecting the transmission waves T. The main controller is configured to control the plurality of sensors independently of each other.

Abstract: An electronic device comprises: a plurality of transmission antennas configured to transmit transmission waves; a plurality of reception antennas configured to receive reflected waves resulting from reflection of the transmission waves; and a controller configured to detect an object reflecting the transmission waves, based on a transmission signal transmitted as the transmission waves and a reception signal received as the reflected waves. The controller is configured to determine a band part used to transmit the transmission waves in a predetermined frequency band, depending on an incidence angle when the reception antennas receive the reflected waves.

Abstract: An electronic device comprises: a transmission antenna configured to transmit transmission waves; a reception antenna configured to receive reflected waves resulting from reflection of the transmission waves; and a controller. The controller is configured to detect an object reflecting the transmission waves, based on a transmission signal transmitted as the transmission waves and a reception signal received as the reflected waves. The controller is configured to make a range of detection of the object by the transmission signal and the reception signal, variable.

Abstract: An electronic device comprises: a transmission antenna configured to transmit transmission waves; a reception antenna configured to receive reflected waves resulting from reflection of the transmission waves; and a controller. The controller is configured to detect an object reflecting the transmission waves, based on a transmission signal transmitted as the transmission waves and a reception signal received as the reflected waves. The controller is configured to set a range of detection of the object, for each frame of the transmission waves.

Abstract: An electronic device comprises: a transmitting antenna configured to transmit transmitted waves, a receiving antenna configured to receive reflected waves obtained by reflection of the transmitted waves; and a controller. The controller detects, based on transmitted signals transmitted as the transmitted waves and received signals received as the reflected waves, an object reflecting the transmitted waves. The controller determines frequencies of transmitted waves to be transmitted from the transmitting antenna based on temperature.

Abstract: An electronic device 1 comprises: a transmitting antenna configured to transmit transmitted waves; a receiving antenna configured to receive reflected waves obtained by reflection of the transmitted waves; and a controller. The controller detects, based on transmitted signals transmitted as the transmitted waves and received signals received as the reflected waves, an object reflecting the transmitted waves. The controller determines frequencies of transmitted waves to be transmitted from the transmitting antenna based on results of receiving, from the receiving antenna, each of reflected waves obtained by reflection of a plurality of transmitted waves with different frequencies transmitted from the transmitting antenna.

Abstract: An electronic device comprises a transmitting antenna that transmits a transmitted wave, a receiving antenna that receives a reflected wave obtained by reflection of the transmitted wave, and a controller. The controller generates a first sample based on a result obtained by subjecting a beat signal generated based on a transmitted signal based on the transmitted wave and a received signal based on the reflected wave to a first fast Fourier transform process. The controller generates a second sample based on a result obtained by subjecting the first sample to a second fast Fourier transform process, and estimates an arrival direction of the reflected wave based on the second sample. The controller sets the first sample from the beat signals in which the peak in the result obtained by performing the first fast Fourier transform process is equal to or higher than a first threshold value.

Abstract: Provided is an electronic device configured to transmit, as a transmission wave, a radio wave whose frequency changes over time from a plurality of transmitting antennas. The electronic device includes a phase controller. The phase controller controls a phase of at least one of transmission waves transmitted from a plurality of transmitting antennas so that the phases of respective transmission waves transmitted from the transmitting antennas are aligned in a predetermined direction. Further, the phase controller adjusts the phase of at least one of transmission waves on the basis of a frequency of the transmission wave.

Abstract: Provided is an electronic device comprising a controller configured to control so that a first mode in which the number of antennas used for transmitting a transmission wave and receiving a reflected wave is a first predetermined number and a second mode in which the number of antennas used for transmitting a transmission wave and receiving a reflected wave is a second predetermined number that is larger than the first predetermined number can be switched. The controller controls to switch to the second mode when the object is detected within a predetermined distance in the first mode.

Abstract: An electronic device includes a controller that performs control to enable switching between a first band mode such that a transmission wave is in a first band and a second band mode such that the transmission wave is in a second band broader than the first band. The controller performs control to switch to the second band mode when an object is detected within a predetermined distance in the first band mode.

Abstract: An electronic apparatus includes a controller configured to control switching between a first mode in which radiation of transmission waves is directed in a first direction and a second mode in which radiation of transmission waves is directed in a second direction downward from the first direction. When a predetermined status is detected in the first mode, the controller performs control to switch to the second mode.

Abstract: An eNB assigns, to a UE, a pair of a PDSCH resource and a PUSCH resource that overlaps, in frequency band, with the PDSCH resource; and derives antenna weight that should be applied to the PDSCH resource, on the basis of a DMRS transmitted from the UE by using the PUSCH resource. When the assignment of the PUSCH is changed to another UE, the eNB derives the antenna weight, on the basis of a past uplink reference signal transmitted from the UE in a past time zone earlier than the PUSCH resource and in a frequency band overlapping with the frequency band of the PDSCH resource.

Abstract: An eNB 100-1 that performs radio communication by using the adaptive array control in the TD-LTE system: receives SRS utilized in the adaptive array control from a plurality of UEs 200; and performs an assignment for each subject downlink RBG, out of a plurality of downlink RBGs. The eNB assigns the subject downlink RBG to a UE 200 that transmitted a specific SRS that is SRS having the highest match rate in a frequency band with the subject downlink RBG, out of a plurality of SRSs received recently before the subject downlink RBG.