Means for dual polarization radar with automatic built-in test equipment and calibration
First Claim
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1. A calibration system for a dual polarization radar system, comprising:
- a radar transmitter that transmits signals in horizontal and vertical polarizations;
a radar receiver that receives the horizontal and vertical polarization signals;
means for generating a continuous wave test signal; and
means for simulating a weather condition by adjusting the attenuation and Doppler phase shift of a continuous wave test signal.
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Abstract
A calibration system for the receiver of a dual polarization radar system has been developed. The system includes a radar transmitter that transmits signals in horizontal and vertical polarizations and a radar receiver that receives the horizontal and vertical polarization signals. The system also includes a test signal generator that generates a continuous wave test signal. A calibration circuit for the radar receiver modifies the test signal to simulate weather conditions by adjusting the attenuation and Doppler phase shift of a continuous wave test signal.
25 Citations
6 Claims
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1. A calibration system for a dual polarization radar system, comprising:
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a radar transmitter that transmits signals in horizontal and vertical polarizations; a radar receiver that receives the horizontal and vertical polarization signals; means for generating a continuous wave test signal; and means for simulating a weather condition by adjusting the attenuation and Doppler phase shift of a continuous wave test signal. - View Dependent Claims (2, 3)
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4. A calibration system for a dual polarization radar system comprising:
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a radar transmitter that transmits signals in horizontal and vertical polarizations; a radar receiver that receives the horizontal and vertical polarization signals; means for producing a background noise signal that is 30 dB higher than standard atmospheric noise; means for dividing the background noise signal; and means for calibrating the system to compensate for atmospheric background noise with the divided background noise signal. - View Dependent Claims (5, 6)
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Specification