A radar apparatus is provided which includes an antenna section that is configured to radiate radio waves based on fed electrical power, a plate dielectric member that is provided so as to transmit the radio waves radiated from the antenna section, a filter portion that is provided to the dielectric member and includes a plurality of band transmission portions arranged along a scanning direction, the plurality of band transmission portions being configured to respectively transmit radio waves within different specific transmission frequency bands, and a power feeding section that is configured to feed the electrical power to the antenna section and is configured to set specific frequency bands included in the respective specific transmission frequency bands to set radiation bands and sequentially change a frequency of the radio waves radiated from the antenna section to frequencies within the respective set radiation bands.

A radar apparatus is provided which includes an antenna section that is configured to radiate radio waves based on fed electrical power, a plate dielectric member that is provided so as to transmit the radio waves radiated from the antenna section, a filter portion that is provided to the dielectric member and includes a plurality of band transmission portions arranged along a scanning direction, the plurality of band transmission portions being configured to respectively transmit radio waves within different specific transmission frequency bands, and a power feeding section that is configured to feed the electrical power to the antenna section and is configured to set specific frequency bands included in the respective specific transmission frequency bands to set radiation bands and sequentially change a frequency of the radio waves radiated from the antenna section to frequencies within the respective set radiation bands.

The invention relates to an assembly for incorporating into a solidified construction element, to a construction element comprising such an assembly, and to a method for producing said construction element. According to the invention, the assembly comprises an electronic system (1), said system (1) comprising a chip. It is characterised in that it also comprises a support part (2) provided with a positioning element (3) for said system (1) on one (4) of the so-called system-receiving faces thereof, and on the face (5) opposing said receiving face (4), a distinctive sign for locating the electronic system, which is visible from outside the construction element.

The invention relates to an assembly for incorporating into a solidified construction element, to a construction element comprising such an assembly, and to a method for producing said construction element. According to the invention, the assembly comprises an electronic system (1), said system (1) comprising a chip. It is characterised in that it also comprises a support part (2) provided with a positioning element (3) for said system (1) on one (4) of the so-called system-receiving faces thereof, and on the face (5) opposing said receiving face (4), a distinctive sign for locating the electronic system, which is visible from outside the construction element.

A method of using a directional sensor for the purposes of detecting the presence of a vehicle or an object within a zone of interest on a roadway or in a parking space. The method comprises the following steps: transmitting a microwave transmit pulse of less than 5 feet; radiating the transmitted pulse by a directional antenna system; receiving received pulses by an adjustable receive window; integrating or combining signals from multiple received pulses; amplifying and filtering the integrated receive signal; digitizing the combined signal; comparing the digitized signal to at least one preset or dynamically computed threshold values to determine the presence or absence of an object in the field of view of the sensor; and providing at least one pulse generator with rise and fall times of less than 3 ns each and capable of generating pulses less than 10 ns in duration.

A method of using a directional sensor for the purposes of detecting the presence of a vehicle or an object within a zone of interest on a roadway or in a parking space. The method comprises the following steps: transmitting a microwave transmit pulse of less than 5 feet; radiating the transmitted pulse by a directional antenna system; receiving received pulses by an adjustable receive window; integrating or combining signals from multiple received pulses; amplifying and filtering the integrated receive signal; digitizing the combined signal; comparing the digitized signal to at least one preset or dynamically computed threshold values to determine the presence or absence of an object in the field of view of the sensor; and providing at least one pulse generator with rise and fall times of less than 3 ns each and capable of generating pulses less than 10 ns in duration.

Provided is a pulse radar device including: a TX unit configured to emit a TX pulse according to a single TX clock signal; a multiple-RX units configured to receive echo pulses received through a plurality of RX antennas according to multiple RX clock signals; a pulse radar driving unit configured to generate the single TX clock signal and the multiple RX clock signals using a reference clock signal. The pulse radar driving unit provides the single TX clock signal and the multiple RX clock signals for the TX unit and the multiple-RX unit. The pulse radar driving unit adjusts an RX clock-to-clock delay that is the delay between the multiple RX clock signals so as to adjust a directivity of the multiple-RX unit, and a TX-to-RX delay between the single TX clock signal and the multiple RX clocks signals so as to adjust a detection range.

Provided is a pulse radar device including: a TX unit configured to emit a TX pulse according to a single TX clock signal; a multiple-RX units configured to receive echo pulses received through a plurality of RX antennas according to multiple RX clock signals; a pulse radar driving unit configured to generate the single TX clock signal and the multiple RX clock signals using a reference clock signal. The pulse radar driving unit provides the single TX clock signal and the multiple RX clock signals for the TX unit and the multiple-RX unit. The pulse radar driving unit adjusts an RX clock-to-clock delay that is the delay between the multiple RX clock signals so as to adjust a directivity of the multiple-RX unit, and a TX-to-RX delay between the single TX clock signal and the multiple RX clocks signals so as to adjust a detection range.

An occupancy detection apparatus and a method for controlling the same are disclosed. The occupancy detection apparatus may include a transmitter including one transmission antenna for outputting a transmission signal, a receiver including a first reception antenna and a second reception antenna, each for receiving a reflected signal corresponding to the transmission signal, and a processor for eliminating a background signal corresponding to a background from each of the reflected signals, and extracting a signal reflected from an occupant from each of the reflected signals by extracting a correlation between the transmission signal and the reflected signal free of the background signal.

An occupancy detection apparatus and a method for controlling the same are disclosed. The occupancy detection apparatus may include a transmitter including one transmission antenna for outputting a transmission signal, a receiver including a first reception antenna and a second reception antenna, each for receiving a reflected signal corresponding to the transmission signal, and a processor for eliminating a background signal corresponding to a background from each of the reflected signals, and extracting a signal reflected from an occupant from each of the reflected signals by extracting a correlation between the transmission signal and the reflected signal free of the background signal.