Receiver antenna for bistatic doppler radar network
AssigneeUniversity Corporation for Atmospheric Research
InventorsMitchell A. Randall, Christopher L. Holloway, Joshua M. A. R. Wurman
Life of this patent
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Abstract
A multiple-Doppler radar network can be constructed using only one, traditional, transmitting pencil-beam radar and one or more passive, non-transmitting receiving sites. Radiation scattered from the pencil beam of the transmitting radar as it penetrates weather targets can be detected at the receive-only sites as well as at the transmitter. In a bistatic system, the location of targets in Cartesian space can be calculated from the pointing angle of the transmitting antenna and the time between transmission of a radar pulse from the transmitter and detection at a passive receiver site.
Claims12
A radar receiver remotely located from a transmitter for determining presence and locus of scatterers in a predefined space, wherein said transmitter transmits a focused beam of high frequency energy into said predefined space in a predetermined scan pattern, comprising:
- transmitted beam that are reflected from scatterers in a predetermined sector of said predefined space and to reject ground clutter;
- and
- means, responsive to receipt of said components by said directional antenna, for generating data indicative of presence and locus of said scatterers in said predefined space.
A radar system for determining presence and locus of scatterers in a predefined space, comprising:
- means for transmitting a focused beam of pulses of high frequency energy into said predefined space in a predetermined scan pattern;
- a nonscanning directional antenna, located remotely from said transmitting means, for forming a shaped pattern beam to receive components of said pulses included in said transmitted beam that are reflected from scatterers in a predetermined sector of said predefined space and to reject ground clutter;
- and
- means, responsive to receipt of said components by said directional antenna, for generating data indicative of presence and locus of said scatterers in said predefined space.
Dependencies are inferred from the claim text.