Abstract: The present invention relates to a radar measuring device which, with a simple design, ensures reliable distance determination even when a mixed signal is zero, and a method for operating a radar measuring device. The radar measuring device includes: A high-frequency oscillator (11) which emits two different carrier frequency signals (F1, F2), A first switching device (14) for switching the carrier frequency signals (F1, F2) as a function of first pulse signals (P1) and emitting radar pulse signals (T1, 2), A transmission antenna (16) and a receiving antenna (18), A second switching device (24) for switching the carrier frequency signals as a function of a delayed second pulse signal (P2) and emitting delayed radar pulse signals (S1, 2), A mixing device (21) for mixing received radar signals (R1, 2) with the delayed radar pulse signals (S1, 2) and emitting mixed signals (M1, 2).

Abstract: A radar device having means for generating a carrier-frequency signal, means for shaping pulses, means for generating modulated radar pulses from the carrier-frequency signal, means for emitting modulated signals as radar pulses, means for receiving radar pulses and means for processing the received radar pulses. The means for receiving the radar pulses have an array including a plurality of antennas, the means for processing the radar pulses have means for dividing the signal power over at least two different reception branches. Means are provided for generating different directional characteristics in the various reception branches.

Abstract: A device and method for regulating the speed of a vehicle during maneuvering/parking of the vehicle. The device may comprise a detection device for detecting objects within the surrounding area of the vehicle and for recording the distance to an object lying closest in the travel direction of the vehicle; a regulator for regulating the speed of the vehicle as a function of the position of an actuating device and of the distance to the most proximate object in the movement direction of the vehicle according to a predefined speed/distance relation; and a control device for automatically controlling a braking element and a driving device of the vehicle as a function of a corresponding output signal of the regulator.

Abstract: Proposed is a method for measuring distance, which improves the resolution and the selectivity in an echo method, using propagation-time measurement. In this context, a received signal is sampled without first having to smooth the signal.

Abstract: A method and an apparatus for operating a radar sensor system with a number of adjacent individual sensors (3, 4, 5, 6), extensively synchronized with one another, for determining the position of a target object (15) are proposed. In one measurement cycle, the transit time of the radar signal emitted from one individual sensor and reflected by the target object to this individual sensor (3, 4, 5, 6) (direct echo (13, 14)) and to a different individual sensor (3, 4, 5, 6) (cross echo (16)) is evaluated. From the evaluation of the direct and cross echoes (13, 14, 16), at least the position of the target object (15) is determined, and a detection quality signal (Q) is ascertained, and once a predetermined amount of the detection quality signal (Q) is reached for a target object (15), a calibration is performed.

Abstract: The present invention relates to a radar device having means (10) for generating a carrier-frequency signal, means (12, 12a, 12b, 13, 13a, 13b) for shaping pulses, means (14, 14a, 14b, 15, 15a, 15b) for generating modulated radar pulses from the carrier-frequency signal, means (16, 18a, 18b, 18c, 18d) for emitting modulated signals as radar pulses, means (18a, 18b, 18c, 18d) for receiving radar pulses, and means (20) for processing the received radar pulses, the means for receiving the radar pulses having an array including a plurality of antennas (18a, 18b, 18c, 18d), the means (20) for processing the radar pulses having means for dividing the signal power over at least two different reception branches (24, 26), and means (28a, 28b, 28c, 28d, 30a, 30b, 30c, 30d, 42) being provided for generating different directional characteristics (32, 34) in the various reception branches (24, 26). The invention also relates to a method for operating a radar device.

Abstract: A control/evaluation system 1 for a set of sensors, in particular in motor vehicles 11, has a plurality of areas 2, 3, 4, each of which has at least one controller 5 and a plurality of sensor devices 6 connected thereto; the controllers 5 may be connected to each other for a common application function.

Abstract: Proposed is a method for measuring distance, which improves the resolution and the selectivity in an echo method, using propagation-time measurement. In this context, a received signal is sampled without first having to smooth the signal.

Abstract: An ultrasonic transducer having a pot-like casing has an outer bottom face which is designed in part as a vibrating diaphragm. A stabilizing ring is arranged on the outside of the wall of the pot-like casing, imparting a greater rigidity to the casing and limiting the ultrasonic vibration essentially to the bottom of the pot as a vibrating diaphragm. The propagation and reception beams of the ultrasonic waves can be shaped further by an additional arrangement of a sound directing device in the area of the vibrating diaphragm.

Abstract: A warning device for monitoring a distance of a vehicle from an obstacle is described. The warning device includes at least one sensor for detecting an obstacle, an analyzing and controlling device for estimating a distance of the vehicle from the obstacle on the basis of an output signal of the at least one sensor, and at least one warning signal element controlled by the analyzing and controlling device to generate a near range warning signal when a distance estimated by the analyzing and controlling device is smaller than a limit value. The analyzing and controlling device includes a device for estimating a risk of collision of the vehicle with the obstacle on the basis of the estimated distance and a speed of the vehicle. The analyzing and controlling device controls the at least one warning signal element to output a far range warning signal when the estimated distance is greater than the limit value and the estimate indicates a risk of collision.

Abstract: A parking aid system for a vehicle includes a device that measures the instantaneous distance of a vehicle part from an obstacle located in its path and generates at least one output signal indicative of the measured distance, as well as a device capable of issuing warning signals. An evaluating unit is connected between the measuring device and the warning device. The evaluating device dynamically determines, as a function of vehicle speed, an instantaneous distance limit value, compares the measured distance value with the respective distance limit value and activates the warning device when the measured distance value is smaller than the respective distance limit value to alert the driver of the vehicle to the presence of the obstacle. The distance limit value may be determined by adding a first distance value independent of the speed of the vehicle and a second distance value linearly proportional to the speed of movement of the vehicle.