Driver assistance device for vehicle and method for operating radar device

Driver assistance device for vehicle and method for operating radar device

  • CN 102,906,591 A
  • Filed: 03/21/2011
  • Published: 01/30/2013
  • Est. Priority Date: 03/24/2010
  • Status: Active Application
First Claim
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1. the driver assistance equipment (2) of a vehicle (1), it comprises radar equipment (3,4), is used for determining that at least one relates to the measurement parameter (α

  • of the outer object (10) of car 1, α

    2, R 1, R 2), wherein, radar equipment (3,4) comprising;

    -at least one first and second receiving antenna (14,15) is respectively applied to receive signal (S E1, S E2), -by the coupling of the first RX path (16) and the first receiving antenna (14) first to down-conversion mixer (17), and by the coupling of the second RX path (21) and the second receiving antenna (15) second to down-conversion mixer (23), respectively with the signal (S that receives E1, S E2) be mixed down into baseband signal (S separately B1, S B2) in, and -controller (5) is used for receiving described baseband signal (S B1, S B2) and be used for by this baseband signal (S B1, S B2) determine described at least one measurement parameter (α

    1, α

    2, R 1, R 2), It is characterized in that,Described radar equipment (3,4) comprises proving installation (32), for generation of the check signal (S of local single-sideband modulation P), and be used for same check signal (S P) be coupled in the first RX path (16) and the second RX path (21), so that described controller (5) receives on the one hand by the first check signal (S to down-conversion mixer (17) mixing downwards P) as the first test signal (ST1), and/or receive on the other hand by the second check signal (S to down-conversion mixer (23) mixing downwards P) as the second test signal (ST2).

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