Radar system for observing weather phenomena with improved radar system parameters
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsTakahiko Fujisaka, Toshio Wakayama, Ryuzaburo Usui
Life of this patent
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Abstract
A radar system and method for observing weather phenomena which sets a weather model corresponding to weather conditions, determines the attenuation of a radio wave due to the atmosphere and particles based on the weather model, calculates a radar range using the attenuation of the radio wave, and determines radar system parameters based on the radar range.
Claims20
A radar system for transmitting a radio wave from an antenna and receiving the radio wave reflected from a target to thereby observe weather phenomena, comprising:
- weather model setting means for setting a weather model corresponding to weather conditions;
- attenuation factor calculating means for determining an attenuation factor of the radio wave due to the atmosphere and particles based on said weather model;
- radar range evaluating means for calculating a radar range by using said attenuation factor;
- and
- radar system parameters determining means for determining radar system parameters based on said radar range.
A radar signal processing method comprising the steps of:
- setting a weather model corresponding to weather conditions;
- calculating an attenuation factor for determining an attenuation of a radio wave due to the atmosphere and particles based on said weather model;
- calculating a radar range using the attenuation;
- deciding radar system parameters based on said radar range;
- performing radar observations based on said radar system parameters;
- estimating weather parameters based on a result of said radar observations;
- and
- modifying said weather model using said estimated weather parameters.
A method for transmitting a radio wave from an antenna and receiving the radio wave reflected from a target to thereby observe weather phenomena, comprising:
- setting a weather model corresponding to weather conditions;
- determining an attenuation factor of the radio wave due to the atmosphere and particles based on the weather model;
- calculating a radar range by using the attenuation factor;
- and
- determining radar system parameters based on said radar range.
Dependencies are inferred from the claim text.