US 7,592,948 B2
System and method for dual polarization radar with automatic built-in test equipment and calibration
William H. Walker, Huntsville, Ala. (US)
Assigned to Baron Services, Inc., Huntsville, Ala. (US)
Filed on Nov. 16, 2007, as Appl. No. 11/941,905.
Claims priority of provisional application 60/906730, filed on Mar. 13, 2007.
Prior Publication US 2008/0224919 A1, Sep. 18, 2008
Int. Cl. G01S 7/40 (2006.01); G01S 13/95 (2006.01); G01S 13/00 (2006.01)
U.S. Cl. 342—174  [342/26 R; 342/165; 342/173; 342/175; 342/188; 342/195] 15 Claims
OG exemplary drawing
 
6. A calibration system for a dual polarization radar system, comprising:
a dual polarization radar transmitter antenna that generates a transmission pulse;
a snipper circuit that captures a sample of the transmission pulse and stores the sample for use in generating a test signal;
a calibration circuit that receives the sample of the transmission pulse and generates a test signal that simulates a desired atmospheric condition; and
a test antenna that transmits the test signal to the dual polarization radar transmitter antenna for calibration of the system.