A radar signal processing device is provided, which performs a scan correlation in a polar coordinate system to secure accuracy of the scan correlation, and prevents a suppression of a target object moving at high speed due to the scan correlation. A polar coordinate correlator performs, in a polar coordinate system, a correlation between reception data and previous correlated data stored in a previous data storage. A trend curve calculating module calculates a trend curve of a distance-direction signal level of the reception data in the polar coordinate system. A target detecting module detects a target based on the signal level of the reception data and the trend curve. Further, the polar coordinate correlator changes the contents of the correlation of the reception data based on the target detection result from the target detecting module.

A radar signal processing device is provided, which performs a scan correlation in a polar coordinate system to secure accuracy of the scan correlation, and prevents a suppression of a target object moving at high speed due to the scan correlation. A polar coordinate correlator performs, in a polar coordinate system, a correlation between reception data and previous correlated data stored in a previous data storage. A trend curve calculating module calculates a trend curve of a distance-direction signal level of the reception data in the polar coordinate system. A target detecting module detects a target based on the signal level of the reception data and the trend curve. Further, the polar coordinate correlator changes the contents of the correlation of the reception data based on the target detection result from the target detecting module.

A radar reception device is provided. The device includes a reception signal acquirer, a signal processor, a PPI-scope generator, an A-scope generator, a display output unit, and a user interface. The reception signal acquirer acquires, in an R-coordinate system, a reception signal received by an antenna that rotates at a predetermined cycle. The signal processor performs signal processing on the reception signal in the R-coordinate system according to a distance, and outputs the processed signal in the R-coordinate system. The PPI-scope generator converts the processed signal from the R-coordinate system into an XY-orthogonal coordinate system and generates a radar image in a PPI-scope. The A-scope generator generates a radar image where the reception signal before being signal-processed is illustrated in an A-scope. The display output unit displays the PPI-scope radar image and the A-scope radar image on a display unit simultaneously. The user interface accepts a user input.

A radar reception device is provided. The device includes a reception signal acquirer, a signal processor, a PPI-scope generator, an A-scope generator, a display output unit, and a user interface. The reception signal acquirer acquires, in an R-coordinate system, a reception signal received by an antenna that rotates at a predetermined cycle. The signal processor performs signal processing on the reception signal in the R-coordinate system according to a distance, and outputs the processed signal in the R-coordinate system. The PPI-scope generator converts the processed signal from the R-coordinate system into an XY-orthogonal coordinate system and generates a radar image in a PPI-scope. The A-scope generator generates a radar image where the reception signal before being signal-processed is illustrated in an A-scope. The display output unit displays the PPI-scope radar image and the A-scope radar image on a display unit simultaneously. The user interface accepts a user input.

A semiconductor device includes a data obtaining unit that obtains a plurality of data items each indicating a result of observation from a plurality of radars for observing surroundings, converts the plurality of data items into data items in a polar coordinate format, and stores them in a storage unit, an axial position converting unit that performs conversion on the plurality of data items in the polar coordinate data format stored in the storage unit so that their axial positions will be the same, generates the plurality of data items on which axial position conversion has been performed, and stores them in the storage unit, a data superimposing unit that superimposes the plurality of data items on which the axial position conversion has been performed to generate superimposed data, and a coordinate converting unit that converts the superimposed data into data in a Cartesian coordinate format.

A semiconductor device includes a data obtaining unit that obtains a plurality of data items each indicating a result of observation from a plurality of radars for observing surroundings, converts the plurality of data items into data items in a polar coordinate format, and stores them in a storage unit, an axial position converting unit that performs conversion on the plurality of data items in the polar coordinate data format stored in the storage unit so that their axial positions will be the same, generates the plurality of data items on which axial position conversion has been performed, and stores them in the storage unit, a data superimposing unit that superimposes the plurality of data items on which the axial position conversion has been performed to generate superimposed data, and a coordinate converting unit that converts the superimposed data into data in a Cartesian coordinate format.

The present disclosure generally relates to an apparatus (100) and method for measuring an object (200) embedded in a structure (210). The apparatus (100) comprises: a first antenna (110a) and a second antenna (110b) with respective perpendicular and parallel polarizations; a measurement instrument (120); and a control system (130). The measurement instrument (120) transmits and measures radio signals reflected from the object (200). The control system (130) generates a first representation (250) and a second representation (260) of the object (200) based on the measured radio signals from the first antenna (110a) and second antenna (110b), respectively. The control system (130) then measures a size of the object (200) from the first and second representations (250,260).

The present disclosure generally relates to an apparatus (100) and method for measuring an object (200) embedded in a structure (210). The apparatus (100) comprises: a first antenna (110a) and a second antenna (110b) with respective perpendicular and parallel polarizations; a measurement instrument (120); and a control system (130). The measurement instrument (120) transmits and measures radio signals reflected from the object (200). The control system (130) generates a first representation (250) and a second representation (260) of the object (200) based on the measured radio signals from the first antenna (110a) and second antenna (110b), respectively. The control system (130) then measures a size of the object (200) from the first and second representations (250,260).

A radar includes antennas, a receiving system, a transmitting system, and a short orbit. The short orbit is provided with a receiving system capable of reciprocating motion thereon; or, the short orbit is provided with a transmitting system capable of reciprocating motion thereon; or, the short orbit is provided with both a receiving system and a transmitting system capable of reciprocating motion thereon.

A radar includes antennas, a receiving system, a transmitting system, and a short orbit. The short orbit is provided with a receiving system capable of reciprocating motion thereon; or, the short orbit is provided with a transmitting system capable of reciprocating motion thereon; or, the short orbit is provided with both a receiving system and a transmitting system capable of reciprocating motion thereon.