摘要:
A pulse radar apparatus, which includes transmitting means for transmitting a pulsed wave and receiving means for receiving a reflected wave of the transmitted wave transmitted by the transmitting means and calculates at least one of a relative distance and a relative speed with respect to an object based on a relationship between the wave transmitted by the transmitting means and the wave received by the receiving means, is provided with pulse width varying means for varying a pulse width of the wave transmitted by the transmitting means according to a position of a required detection range where calculation of the at least one of the relative distance and the relative speed with respect to the object is required.
摘要:
Provided is an array antenna device which is capable of easily setting radiation coefficients of respective antenna elements and easily matching impedances. The array antenna device 1 according to the present invention comprises: a plurality of antenna blocks 4 provided on a front side of a dielectric substrate 3, wherein each of the plurality of antenna blocks 4 includes: a feed microstrip line 6; and an antenna element 2 connected to a middle part 61 of the feed microstrip line 6, wherein the feed microstrip line 6 has: the middle part 61; an input side impedance matching element 7 connected to the middle part 61 so as to be distant from the antenna element 2; and an output side impedance matching element 8 connected to the middle part 61 so as to be distant from the antenna element 2.
摘要:
A radar device including: a reception antenna that receives radio waves, includes at least three antennas and is arranged so that the phase center points thereof form an isosceles triangle; an arrival direction detection unit that detects an arrival direction of the radio waves by a phase monopulse method; and a phase correction unit that corrects a phase difference between phases of radio waves respectively received by two adjacent antennas among the three antennas based on the relationship of the phases of the radio waves respectively received by the three antennas.
摘要:
To enable a user to perform a hypothetical simulation of the use of firefighting equipment so as to be able to experience operation of such firefighting equipment without using actual firefighting equipment, a manual provision system includes an information terminal device, and a server in which manual information pertaining to an article is recorded, the information terminal device and the server connected to each other through a network, the manual information for the article being scanned into the information terminal device from the server through the network so as to allow the manual information to be checked using the information terminal device. The article is a piece of firefighting equipment and the manual information is a hypothetical operation simulation for the firefighting equipment so as to enable learning the manual information by using the information terminal device to operate the hypothetical operation simulation.
摘要:
A radar device including: a reception antenna that receives radio waves, includes at least three antennas and is arranged so that the phase center points thereof form an isosceles triangle; an arrival direction detection unit that detects an arrival direction of the radio waves by a phase monopulse method; and a phase correction unit that corrects a phase difference between phases of radio waves respectively received by two adjacent antennas among the three antennas based on the relationship of the phases of the radio waves respectively received by the three antennas.
摘要:
A digital broadcast is received by a receiving unit 5, and is output from a speaker 9. During a waiting time for changing-over of channels, or the like, a control unit 11 causes a holding sound generating unit 15 generate a holding sound as a waiting signal. The holding sound is an intermittent synthetic sound, whose pitch is shortened according to the remainder of the waiting time. In another embodiment, the channel selected by a user is received and output with one receiving unit, and at the same time, the channels other than the selected channel are received and stored with another receiving unit. During the waiting time due to the changing-over of channels, received signals of the selected channel are read out and output. A user can be informed of the content of a broadcast during the waiting time.