Device for measuring the distance and speed of objects
OwnerMichael Schlick, Juergen Hoetzel +1inventors
InventorsMichael Schlick, Juergen Hoetzel, Rainer Moritz
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Abstract
Transmitted and received radar pulses are correlated in a receiver-side mixer for the measurement of the clearance distance and the speed of objects, using radar pulses. In a control device for specifying range gates, transmitter-side radar pulses that are able to be supplied to the mixer are continuously changed increasingly and/or decreasingly with respect to their pulse delay. Using a switchover device, one may switch over to the Doppler frequency measuring operation or reset to the clearance distance measuring operation.
Claims13
-12. (canceled)
A device for measuring a clearance distance and a speed of an object using radar pulses, comprising:
- a receiver-side mixer that correlates received radar pulses with delayed transmitter-side radar pulses;
- a control device for specifying range gates within which radar pulses that are to be supplied to the mixer are continuously changeable increasingly and/or decreasingly with respect to their pulse delay;
- a switchover device for at least one of:
- implementing a plurality of operating modes for holding constant transmitter-side radar pulses that are able to be supplied to the mixer with respect to their delay, in order to measure Doppler frequencies,
- for one of resetting and raising the delay to one of a current starting value and a new starting value, and
- for producing a continuous delay into a direction that runs opposite to a preceding change;
- and
- an evaluating device for determining distance and speed values in response to an output signal from the mixer.
Dependencies are inferred from the claim text.