摘要:
The invention relates to a method for exchanging radar signals (5, 7, 9, 11, 13, 15, 17), wherein, for an arrangement (2) having an amount of radar transceiver chips (4, 6, 8, 10, 12, 14, 16), the invention proposes that a detection region for radar signals (5, 7, 9, 11, 13, 15, 17) be adjusted for each chip (4, 6, 8, 10, 12, 14, 16) such that a plurality of detection regions for radar signals (5, 7, 9, 11, 13, 15, 17) is covered for the entire arrangement (2) at the same time.
摘要:
The invention relates to a radar device (2), comprising an antenna (4) and a circuit module (8). The circuit module (8) is designed to set an electric signal to be provided for the antenna such that the antenna (4) emits a continuous modulated radar signal for a remote range or a pulsed modulated radar signal for a close-up range, depending on the circuit. The invention further relates to a method for the radar-supported detection of a surrounding area.
摘要:
The invention relates to a method for determining the plausibility of objects in driver assistance systems for motor vehicles, two variables (Tr, Tv) being derived from positioning data (14, 20) from two object positioning systems (10; 16, 18) of the vehicle, operating independently of each other, for an object that is detected by both positioning systems, one variable for each positioning system, representing one and the same physical parameter (TTC), and subsequently the two variables being checked for consistency, characterized in that the parameter (TTC) is the pre-calculated time until collision of the vehicle with the object.
摘要:
In order to operate an array-based ray pivotable antenna as a function of the frequency, the ray widths of the radiation beam are varied as a function of direction by switching (51) on or off individual elements (1) or groups of individual elements of the array.
摘要:
The present invention provides an FMCW radar locating device and a corresponding FMCW radar locating method. The FMCW radar locating device comprises a transmitting device (100, 14, 160) for emitting a transmission signal (VO) with a controllable transmission signal - generating device (100) for generating the transmission signal (VO) with a frequency (f) corresponding to an input control signal (VM); a control device (120) which is connected to the transmission signal - generating device (100) in order to generate the control signal (VM); wherein the control device (120) is configured in such a way that it generates a control signal (VM) of such a type that the transmission signal (VO) rises periodically in an inconstant linear fashion in first frequency segments (FS1-FS3) and/or drops periodically in an inconstant linear fashion in second frequency segments (FS3-FS6); and a reception device (160, 14, 180, 222, 240) for receiving an echo signal (VR) which is reflected by an object, and for carrying out the process for locating the object, on the basis thereof.
摘要:
Radar sensor for motor vehicles, having a transmitting and receiving device (10) for microwaves, in which radiation-shaping devices (12, 14) which are independent of one another are provided for the azimuth and the elevation, and the radiation-shaping device for the elevation has a cylinder lens (14).
摘要:
The invention relates to a mehod for estimating the relative movement of video objects in a driver assistance system for motor vehicles, which is equipped with a video system, wherein at least one parameter characterizing the movement is calculated based on the apparent movement of the object in the video image. According to the invention, the parameter characterizing the movement is calculated on the basis of the optical flow that is integrated in the video image on the object surface.