A front end of a radar system is provided with a first front end apparatus and a second front end apparatus. A first transmit planar component and a first receive planar component in the first front end apparatus are arranged to be perpendicular to one another. A second transmit planar component and a second receive planar component in the second front end apparatus are arranged to be perpendicular to one another. A linear array of antennas is located along a second end of each planar component. Polarization of a first set of waves transmitted from the linear array of antennas of the first transmit planar component and polarization of a second set of waves transmitted from the linear array of antennas of the second transmit planar component are perpendicular to one another.

Systems for assisting a user with programming of a custom basketball shots made in a row practice arrangement includes a control system which receives data from a user interface indicating a user selection of a number of shots to be made in a row at each of a subset of pass receipt locations in the custom basketball shots made in a row practice arrangement and command a ball ejector to launch basketballs to a particular one of the pass receipt locations in the subset until data is received indicating that the number of shots is made in a row is made, and instead begin launching basketballs to a second particular one of the plurality of pass receipt locations in the subset. The control system also generates data for a report indicating performance feedback for the user during the custom basketball shots made in a row practice arrangement.

Systems for assisting a user with programming of a custom basketball shots made in a row practice arrangement includes a control system which receives data from a user interface indicating a user selection of a number of shots to be made in a row at each of a subset of pass receipt locations in the custom basketball shots made in a row practice arrangement and command a ball ejector to launch basketballs to a particular one of the pass receipt locations in the subset until data is received indicating that the number of shots is made in a row is made, and instead begin launching basketballs to a second particular one of the plurality of pass receipt locations in the subset. The control system also generates data for a report indicating performance feedback for the user during the custom basketball shots made in a row practice arrangement.

Disclosed is a radar signal processing device including a shift unit to shift either one of an ascending sequence signal in which the frequency of a pulse wave rises discretely with time and a descending sequence signal in which the frequency of a pulse wave falls discretely with time.

Disclosed are a method and a device for adaptively configuring a threshold for object detection by means of radar, the device including: a position-specific maximum signal value extraction unit extracting a maximum value of a signal for each position by obtaining the signal when there is no moving object; a position-specific signal magnitude sorting unit obtaining signals caused by a moving object, and sorting magnitudes of the obtained signals for each position in descending order for a time index; a candidate signal index selection unit selecting a candidate signal index; a signal index determination unit setting weighting factors for the respective signals up to the candidate signal index, and determining a sum of the weighting factors as a signal index; and a position-specific threshold configuring unit configuring the threshold for each position by using a signal of the determined signal index and a scaling factor.

Disclosed are a method and a device for adaptively configuring a threshold for object detection by means of radar, the device including: a position-specific maximum signal value extraction unit extracting a maximum value of a signal for each position by obtaining the signal when there is no moving object; a position-specific signal magnitude sorting unit obtaining signals caused by a moving object, and sorting magnitudes of the obtained signals for each position in descending order for a time index; a candidate signal index selection unit selecting a candidate signal index; a signal index determination unit setting weighting factors for the respective signals up to the candidate signal index, and determining a sum of the weighting factors as a signal index; and a position-specific threshold configuring unit configuring the threshold for each position by using a signal of the determined signal index and a scaling factor.

A Doppler radar sensor with a power detector is disclosed. In the Doppler radar sensor, a power detector is provided to detect the power level of a received transmission signal, and a leakage and clutter canceler is provided to generate a cancellation signal according to the power level of the received transmission signal. The cancellation signal is used to cancel leakage and clutter in the received transmission signal such that object displacement in the received transmission signal can be identified.

A radar apparatus includes a transmitting array antenna that transmits signals orthogonal to one another from a plurality of transmitting antennas, a receiving array antenna that receives the signals reflected from a target by a plurality of receiving antennas, and a signal processing unit that detects the target from reception signals received by the plurality of receiving antennas. The signal processing unit includes a correlation matrix calculation unit that determines a first correlation matrix corresponding to the transmitting array antenna and a second correlation matrix corresponding to the receiving array antenna, on the basis of the reception signals separated by a separation unit, and a detection unit that detects the target on the basis of an evaluation value calculated using eigenvectors of the first correlation matrix and the second correlation matrix.

A radar apparatus includes a transmitting array antenna that transmits signals orthogonal to one another from a plurality of transmitting antennas, a receiving array antenna that receives the signals reflected from a target by a plurality of receiving antennas, and a signal processing unit that detects the target from reception signals received by the plurality of receiving antennas. The signal processing unit includes a correlation matrix calculation unit that determines a first correlation matrix corresponding to the transmitting array antenna and a second correlation matrix corresponding to the receiving array antenna, on the basis of the reception signals separated by a separation unit, and a detection unit that detects the target on the basis of an evaluation value calculated using eigenvectors of the first correlation matrix and the second correlation matrix.

Systems and methods for providing performance feedback regarding a basketball practice session are provided. A user interface associated with the basketball launching machine accepts user input indicating a subset of various locations at a basketball playing area for a basketball launching machine to provide basketball passes for a player to catch and shoot towards a basketball goal for said basketball practice session. At least one detection device ascertains whether the player succeeds in making a goal, and at least one processor retrieves data from the detection device and generates graphical output indicating the player's success in making goals for the basketball practice session displayed in a spatial layout visually corresponding to where the basketballs were passed.