Abstract: A radar device is configured in such a manner that each of transmission radars uses, as the amount of phase modulation, a value determined from either one of a positive integer value that is less than or equal to a result of division obtained by dividing the number of hits of a transmission RF signal by the number of the transmission radars and a value of 0; a hit number h of the transmission RF signal; and the number of hits.

Abstract: An active matrix substrate includes a plurality of thin film transistors including an oxide semiconductor layer, an interlayer insulating layer, a plurality of pixel electrodes arranged above the interlayer insulating layer, a common electrode arranged between the pixel electrode and the interlayer insulating layer and also configured to function as a touch sensor electrode, a first dielectric layer arranged between the interlayer insulating layer and the common electrode, a second dielectric layer arranged between the common electrode and the pixel electrode, a plurality of touch wiring lines arranged between the interlayer insulating layer and the common electrode and formed of a third conductive film, and a plurality of pixel contact portions, in which each of the plurality of pixel contact portions includes a drain electrode of the thin film transistor, a connection electrode formed of the third conductive film and electrically connected to the drain electrode in a lower opening formed in the interlayer i

Abstract: A collision determining unit (404) determines whether a vehicle (1000) collides with an object (1001) when a Doppler velocity component between the vehicle (1000) and the object (1001) varies to a first reference value, or when the vehicle (1000) has traveled to a range R corresponding to the first reference value.

Abstract: A transmission radar (1) divides each of multiple frequency bands in such a manner that differences between center frequencies in respective frequency bands after the division are equal, and transmits, in time division manner, transmission signals of which transmission frequencies are the center frequencies in respective frequency bands after the division; a rearrangement processing unit (13) rearranges each of the reception video signals converted by the reception radar (5) in such a manner that sets of reception video signals corresponding to the multiple frequency bands before being divided by the transmission radar (1) are arranged in a row; and a band synthesis processing unit (14) performs a band synthesis on each of the reception video signals rearranged by the rearrangement processing unit (13).

Abstract: Target detection units respectively performing detection processing of targets which are different in spatial extent from each other on the basis of a detection result of amplitude or power by a detection unit are provided, and at least one determination processing unit is configured to determine presence or absence of targets from a result of the detection processing of targets by the target detection units. As a result of this configuration, it is possible to detect a target even when it has a spatial extent.

Abstract: Transmission radars (1-nTX) (nTX=1, 2, . . . , NTX) generate mutually different modulation codes Code(nTX, h) by cyclically shifting the same code sequence by mutually different cyclic shift amounts ??(nTX), and generate mutually different transmission RF signals (4-nTX) using the mutually different modulation codes Code(nTX, h). As a result, the number of transmission radars 1-nTX can be made larger, and target detection accuracy can be made higher than in a case where orthogonal codes are used as mutually different modulation codes.

Abstract: A range-direction frequency domain converting unit (231-1) converts reception video signals into signals in a range direction frequency. A hit-direction frequency domain converting unit (232-1) converts the signals in the range direction frequency into signals based on the velocity and the range direction frequency so that the target Doppler frequency belongs to the same velocity bin number independently of variations in frequencies of transmission signals. A correlation unit (233-1) generates signals based on the velocity separated for each of the transmission frequencies and a range after correlation. An integration unit (234-1) generates band-synthesized signals based on the velocity and a range after correlation. A candidate target detecting unit (241) detects candidate targets based on the signal intensity from the output signals of the integration unit (233-1).

Abstract: Transmission antennas (2-#1 to 2-#M) transmit radiowaves of frequency bands uncorrelated with each other. Receivers (5-#1 to 5-#L) receives target-reflected waves reflected by a target. Pulse compressors (7-#1 to 7-#L) and transmission DBF units (8-#1 to 8-#L) suppress false peaks generated by the Doppler frequency in the target-reflected waves and combines the target-reflected waves. A reception DBF unit (9) and a target detector (10) detect the target based on the results of the combined signals.

Abstract: A signal cutting-out unit cuts out a signal reflected from a target by a specific length while the cut-out signals are overlapped by a set length. A power spectrum calculating unit calculates a plurality of power spectra from output signals from the signal cutting-out unit. A power spectrum reconstructing unit performs power spectrum reconstruction by changing a ratio or contribution rate of power spectrum components in a set region, using the plurality of power spectra. A spectral moment calculating unit calculates a spectral moment from a power spectrum reconstructed by the power spectrum reconstructing unit.

Abstract: A radar device is configured in such a manner that each of transmission radars uses, as the amount of phase modulation, a value determined from either one of a positive integer value that is less than or equal to a result of division obtained by dividing the number of hits of a transmission RF signal by the number of the transmission radars and a value of 0; a hit number h of the transmission RF signal; and the number of hits.

Abstract: An observation area is divided into coarse resolution areas each being an area larger than a range cell, a coarse-resolution-area creating unit (12) is provided to calculate a Doppler velocity for each coarse resolution area on the basis of Doppler velocities in a plurality of range cells included in each coarse resolution area among Doppler velocities in range cells calculated by a Doppler velocity calculating unit (11), and a range cell detecting unit (13) detects a range cell in which an observation target is present from the Doppler velocity for each coarse resolution area calculated by the coarse-resolution-area creating unit (12) and the Doppler velocities for the range cells calculated by the Doppler velocity calculating unit (11).

Abstract: A collision determining unit (404) determines whether a vehicle (1000) collides with an object (1001) when a Doppler velocity component between the vehicle (1000) and the object (1001) varies to a first reference value, or when the vehicle (1000) has traveled to a range R corresponding to the first reference value.

Abstract: A dielectric boundary surface estimation device includes: a pre-processing unit pre-processing wave data obtained by observing a dielectric by a radar device; a three-dimensional synthetic aperture processing unit performing three-dimensional synthetic aperture processing on the wave data pre-processed by the pre-processing unit; and a dielectric boundary surface estimating unit estimating a boundary surface between areas having different dielectric constants to each other using the wave data on which the three-dimensional synthetic aperture processing is performed by the three-dimensional synthetic aperture processing unit. The dielectric boundary surface estimating unit calculates a width and a thickness of the boundary surface.

Abstract: A frequency domain transforming unit (231-1) performs a transform into a frequency domain in such a way that a Doppler velocity bin is the same for each of different transmission frequencies. A correlation unit (232-1) generates signals based on a velocity and a range after correlation, the signals being separate for each of the transmission frequencies. An integrating unit (233-1) generates band-synthesized signals based on a velocity and a range after correlation. A target candidate detecting unit (241) performs detection of a target candidate on output signals of the integrating unit (233-1) on the basis of signal strength. A target's relative-velocity/relative-range/arrival-angle calculating unit (242) calculates a relative velocity, a relative range, and an arrival angle of the target candidate.

Abstract: A dielectric boundary surface estimation device includes: a pre-processing unit pre-processing wave data obtained by observing a dielectric by a radar device; a three-dimensional synthetic aperture processing unit performing three-dimensional synthetic aperture processing on the wave data pre-processed by the pre-processing unit; and a dielectric boundary surface estimating unit estimating a boundary surface between areas having different dielectric constants to each other using the wave data on which the three-dimensional synthetic aperture processing is performed by the three-dimensional synthetic aperture processing unit. The dielectric boundary surface estimating unit calculates a width and a thickness of the boundary surface.

Abstract: An observation area is divided into coarse resolution areas each being an area larger than a range cell, a coarse-resolution-area creating unit (12) is provided to calculate a Doppler velocity for each coarse resolution area on the basis of Doppler velocities in a plurality of range cells included in each coarse resolution area among Doppler velocities in range cells calculated by a Doppler velocity calculating unit (11), and a range cell detecting unit (13) detects a range cell in which an observation target is present from the Doppler velocity for each coarse resolution area calculated by the coarse-resolution-area creating unit (12) and the Doppler velocities for the range cells calculated by the Doppler velocity calculating unit (11).

Abstract: A transmission radar (1) divides each of multiple frequency bands in such a manner that differences between center frequencies in respective frequency bands after the division are equal, and transmits, in time division manner, transmission signals of which transmission frequencies are the center frequencies in respective frequency bands after the division; a rearrangement processing unit (13) rearranges each of the reception video signals converted by the reception radar (5) in such a manner that sets of reception video signals corresponding to the multiple frequency bands before being divided by the transmission radar (1) are arranged in a row; and a band synthesis processing unit (14) performs a band synthesis on each of the reception video signals rearranged by the rearrangement processing unit (13).

Abstract: A range-direction frequency domain converting unit (231-1) converts reception video signals into signals in a range direction frequency. A hit-direction frequency domain converting unit (232-1) converts the signals in the range direction frequency into signals based on the velocity and the range direction frequency so that the target Doppler frequency belongs to the same velocity bin number independently of variations in frequencies of transmission signals. A correlation unit (233-1) generates signals based on the velocity separated for each of the transmission frequencies and a range after correlation. An integration unit (234-1) generates band-synthesized signals based on the velocity and a range after correlation. A candidate target detecting unit (241) detects candidate targets based on the signal intensity from the output signals of the integration unit (233-1).

Abstract: Target detection units respectively performing detection processing of targets which are different in spatial extent from each other on the basis of a detection result of amplitude or power by a detection unit are provided, and at least one determination processing unit is configured to determine presence or absence of targets from a result of the detection processing of targets by the target detection units. As a result of this configuration, it is possible to detect a target even when it has a spatial extent.

Abstract: Transmission radars (1-nTX) (nTX=1, 2, . . . , NTX) generate mutually different modulation codes Code(nTX, h) by cyclically shifting the same code sequence by mutually different cyclic shift amounts ??(nTX), and generate mutually different transmission RF signals (4-nTX) using the mutually different modulation codes Code(nTX, h). As a result, the number of transmission radars 1-nTX can be made larger, and target detection accuracy can be made higher than in a case where orthogonal codes are used as mutually different modulation codes.