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Radar system for determining the position of two or more objects

  • US 5,001,486 A
  • Filed: 08/04/1989
  • Issued: 03/19/1991
  • Est. Priority Date: 08/04/1989
  • Status: Expired due to Fees
First Claim
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1. A radar system for determining the position of at least two objects, including a first, guided object and a second, target object, said radar system having a transmitter for transmitting pulse transmission signals and a receiver for receiving echo signals from said guided and target objects, wherein the transmitter sends control data to said guided object, by utilizing a control code impressed on a phase-coded pulse transmission, wherein said guided object sends a transponder echo signal back via a transponder to the receiver, said receiver including a microwave network on its input side, said microwave network being coupled by a plurality of reception signal processing channels to a mixing and preamplifying arrangement, characterized in that the same ones of said reception channels are provided in said receiver for both a passive echo signal that is a reflection of a pulse transmission signal from said target object and said transponder echo signal and in that said transponder provides said transponder echo signal similar with respect to coding and bandwidth to said pulse transmission originally sent by said transmitter and said transponder echo signal is phase-coded but not provided with said control code, and wherein the received echo signals are correlated in said receiver with a phase coded signal similar to said pulse transmission originally sent by said transmitter.

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