Abstract: Disclosed herein are an automotive radar apparatus and a method of controlling automotive radar, capable of recognizing a road gradient by easily adjusting a vertical scan angle based on intensities of radio waves received by radar of a vehicle traveling on a road to recognize a gradient of the road, and of preventing deterioration of detection performance by vertically adjusting a radio wave elevation angle of the radar so as to be suitable for the road gradient. The automotive radar apparatus includes an antenna unit transmitting radar signals or receiving reflected radar signals according to elevation angles of a transmission antenna or a receiving antenna, and a control unit searching a center angle based on received power according to the elevation angles to set a beam corresponding to the center angle as a center beam and setting ranges of interest on the basis of the center beam.

Abstract: A method for obtaining psicose from a mixture of fructose and psicose includes adding a mannitol dehydrogenase to a mixture of fructose and psicose to convert fructose into mannitol, and separating the mannitol from the psicose. Accordingly, the psicose can be more easily isolated from the mannitol with high efficiency by using the method.

Abstract: A radar apparatus comprises a signal transmission unit, a signal reception unit, a determination unit, and a target detection unit. The signal transmission unit transmits a transmission signal for detecting a target object. The signal reception unit receives a reception signal generated when the transmission signal is reflected. The determination unit determines a presence of a clutter structure using frequency response information of the reception signal. The target detection unit detects a target object by correcting a detection threshold value for detecting a target object according to the determination result on the presence of the clutter structure and detects a target object.

Abstract: Disclosed herein are a method and apparatus for detecting a surrounding environment based on a Continuous Wave (CW) radar sensing signal and a Frequency-Modulated Continuous Wave (FMCW) radar sensing signal. A method of detecting a target based on a Frequency-Modulated Continuous Wave (FMCW) radar sensing signal and a Continuous Wave (CW) radar sensing signal may include sending, by a radar, the CW radar sensing signal for detecting the target and receiving a first response signal that is a response to the CW radar sensing signal; sending, by the radar, the FMCW radar sensing signal for detecting the target and receiving a second response signal that is a response to the FMCW radar sensing signal; generating, by the radar, the frequency spectrum of a beat signal by performing signal processing on the first response signal and the second response signal.

Abstract: The present provides a radar apparatus and an antenna for the radar apparatus. Further, a first transmitting antenna group and a first receiving antenna group are constituted by elongating some of a plurality of transmitting antennas and a plurality of receiving antennas in a first direction of vertical directions, a second transmitting antenna group and a second receiving antenna group are constituted by elongating the other antennas in a second direction opposite to the first direction, transmitting antennas to transmit transmission signals and receiving antennas to receive reflection signals reflected from an object are appropriately selected, thereby being able to improve horizontal and vertical angular resolving power in both of mid/long-range sensing and short-range sensing.

Abstract: The present disclosure relates to a radar apparatus and an antenna system for the radar apparatus. A first transmitting antenna group and a first receiving antenna group are constituted by elongating some of a plurality of transmitting antennas and a plurality of receiving antennas in a first direction of vertical directions, a second transmitting antenna group and a second receiving antenna group are constituted by elongating the other antennas in a second direction opposite to the first direction, transmitting antennas to transmit transmission signals and receiving antennas to receive reflection signals reflected from an object are appropriately selected, thereby being able to improve horizontal and vertical angular resolving power in both of mid/long-range sensing and short-range sensing.

Abstract: The present disclosure provides a radar apparatus and a method of correcting an error of the radar apparatus. According to the present disclosure a first transmitting antenna group and a first receiving antenna group are constituted by elongating some of a plurality of transmitting antennas and a plurality of receiving antennas in a first direction of vertical directions, a second transmitting antenna group and a second receiving antenna group are constituted by elongating the other antennas in a second direction opposite to the first direction, and one or more of transmitting antennas that transmit transmission signals and one or more of receiving antennas that receive reflection signals are included in different groups, thereby being able to measure elevation information of an object and correct a mounting position of the radar apparatus on the basis of the information.

Abstract: A radar apparatus includes: a transmission unit including a plurality of transmission antennas which are arranged at a predetermined transmission antenna interval, and configured to radiate a transmission signal using the plurality of transmission antennas; a reception unit including a plurality of reception antennas which are arranged at a predetermined reception antenna interval, and configured to receive a reception signal when the transmission signal is reflected by an object, through the plurality of reception antennas; and a signal processing unit configured to detect the object based on the reception signal received by the reception unit.

Abstract: Disclosed herein are a method and device for sensing a road environment based on a frequency modulated continuous wave (FMCW) radar. A method for detecting a road environment based on the FMCW radar includes the steps of: the FMCW radar performing a first scan to acquire a first frequency spectrum of beat signals, and shifting the first frequency spectrum based on first velocity information of a vehicle on performing the first scan; the FMCW radar performing a second scan to acquire a second frequency spectrum of beat signals, and shifting the second frequency spectrum based on second velocity information of the vehicle on performing the second scan; acquiring correlation information between the shifted first frequency spectrum and the shifted second frequency spectrum; and comparing the correlation information with a set threshold value and detecting the road environment.

Abstract: Disclosed herein is a vehicle radar. The radar may include Tx antennas for a middle range, Tx antennas for a short range, Rx antenna columns for a middle range each configured to have a long shape vertically and be horizontally disposed, Rx antenna columns for a short range each configured to have a long shape vertically and be disposed between some of the Rx antenna columns for a middle range, and a control unit configured to process signals of radio waves that are reflected from a specific object after the radio waves are radiated by the Tx antennas for the middle range and that are received by the Rx antenna columns for the middle range or signals of radio waves that are reflected from a specific object after the radio waves are radiated by the Tx antennas for the short range and that are received by the Rx antenna columns for the short range.

Abstract: A method of preparing D-psicose includes a step of reacting D-fructose as a substrate and an epimerase thereof in microorganisms at a temperature of 40° C. or higher. The method may further includes inducing the microorganisms to have resting cells by culturing the microorganisms in a medium not containing the D-fructose before the reaction. The method of preparing D-psicose may significantly improve the production amount of D-psicose and production rate of D-psicose.

Abstract: Disclosed herein are a method and device for sensing a surrounding environment based on a frequency modulated continuous wave (FMCW) radar. The method for detecting a target based on an FMCW radar includes the steps of: the FMCW radar transmitting a sensing signal for detection of the target, and receiving a response signal in response to the sensing signal; the FMCW radar performing a signal processing on the response signal, and generating a frequency spectrum of a beat signal; the FMCW radar determining a detection frequency band for detection of the target within a valid frequency band of the frequency spectrum; the FMCW radar determining a threshold value to determine a target detection peak value for detection of the target among peak values of the frequency spectrum; and the FMCW radar detecting the target based on the detection frequency band and the threshold value.

Abstract: The present disclosure relates to a radar apparatus for vehicle and a method of removing a ghost of the radar apparatus for vehicle by determining a grating lobe ghost based on a reception signal received through linearly and equally spaced receiving antennas and unequally spaced receiving antennas. The radar apparatus comprises: a transmitting unit configured to transmit a predetermined transmission signal to the front of the vehicle through the plurality of transmitting antennas; a receiving unit configured to receive a reception signal generated from the transmission signal transmitted by the transmitting unit and reflected and returned by the target positioned in front of the vehicle through the plurality of receiving antennas and the additionally included receiving antenna; and a signal processing unit configured to remove a grating lobe ghost by using the difference of a gain obtained through a digital beamforming result and the reception signal.

Abstract: The disclosure relates to a radar device for a vehicle, enabling distance and velocity of a target approaching at a high speed in a short distance to be measured while securing a detection performance of the target. The radar device includes at least: a transmission unit configured to transmit, as a transmission signal, a multi-chirp signal having different slopes through the transmission antenna; a reception unit configured to receive, through the reception antenna, a reception signal that is the transmission signal reflected on the target located before the vehicle, in which the transmission signal is transmitted by the transmission unit; and a signal processing unit configured to calculate a frequency difference between the transmission signal and the reception signal, frequency variation according to a distance of the target, and frequency variation according to the velocity of the target to measure the distance and velocity of the corresponding target.

Abstract: The disclosure relates to a radar device for a vehicle, enabling to determine a target satisfying a pairing condition for finding an intersection point by using a combination of a pair of up-chirp and down-chirp signals with an added down-chirp signal, without an additional hardware resource. The radar device includes at least: a transmission unit configured to transmit, through the transmission antenna, a transmission signal including a pair of up-chirp and down-chirp signals having predetermined slopes, and an added chirp signal having a slope different from the slopes; a reception unit configured to receive, through the reception antenna, a reception signal that is the transmission signal reflected on the target located before the vehicle; and a signal processing unit configured to determine the target satisfying the pairing condition for finding an intersection point through a combination of at least one of a pair of the up-chirp and down-chirp signals.

Abstract: The present invention relates to an apparatus for estimating an arrival-angle of a reception signal and a beam-forming apparatus in a radio wave receiver, such as radar. More specifically, the present invention relates to an apparatus for accurately estimating an arrival-angle of a reception signal, or an apparatus for performing the beam-forming of a reception signal by using a multi-reception array antenna, by using a reference value that is obtained by calculating the degree of distortion of the magnitude and phase of a signal for each reception angle.

Abstract: The present invention relates to a radar device for a vehicle which may determine a target as a single target or multiple targets according to a dispersion level of a slope for each reception channel, calculated through a phase difference for each reception channel of a reflection signal and an arrangement interval for each reception channel, and estimate the angle of the target so as to acquire the angle of the target using a small amount of calculations, and a method for estimating the angle of a target using the same.

Abstract: According to an embodiment of the present disclosure, a spatial interpolation method for a linear phased array antenna relates to a spatial interpolation method for a linear phased array antenna including a plurality of transmission antenna elements and a plurality of reception antenna elements and includes Step 1 in which the plurality of reception antenna elements receive a reflected wave reflected from a target, Step 2 in which an incidence angle of the reflected wave incident on the plurality of reception antenna elements is estimated using an angle estimation algorithm, Step 3 in which a bad-conditioned antenna element is selected from among the plurality of reception antenna elements, and Step 4 in which a received signal of the bad-conditioned antenna element is compensated for and the incidence angle of the reflected wave incident on the plurality of reception antenna elements is re-estimated using an angle estimation algorithm.

Abstract: Disclosed herein is a frequency modulated continuous wave (FMCW) radar device, including: a continuous wave (CW) signal generator configured to generate a transmit (Tx) CW signal; a radio frequency (RF) transmitter configured to transmit the generated Tx CW signal as an RF signal through a Tx antenna; an RF receiver configured to receive a CW signal which is reflected and returned from a forward object after the Tx CW signal is transmitted; a target detector configured to extract speed and angle using a frequency difference between the Tx CW signal and the reflected CW signal, and detect an approaching target; and a detection controller configured to control the RF transmitter to transmit the Tx CW signal as a signal having a triangular waveform in a time-frequency graph and to additionally transmit the Tx CW signal as a signal having a crossbar waveform at a predetermined frequency for a predetermined time, and extract speed and angle from the reflected CW signal having a crossbar waveform so as to detect th

Abstract: Disclosed herein are an automotive radar apparatus and a method of controlling automotive radar, capable of recognizing a road gradient by easily adjusting a vertical scan angle based on intensities of radio waves received by radar of a vehicle traveling on a road to recognize a gradient of the road, and of preventing deterioration of detection performance by vertically adjusting a radio wave elevation angle of the radar so as to be suitable for the road gradient. The automotive radar apparatus includes an antenna unit transmitting radar signals or receiving reflected radar signals according to elevation angles of a transmission antenna or a receiving antenna, and a control unit searching a center angle based on received power according to the elevation angles to set a beam corresponding to the center angle as a center beam and setting ranges of interest on the basis of the center beam.