Enhancement of airborne weather radar performance using external weather data

• US 9,869,766 B1
• Filed: 01/28/2015
• Issued: 01/16/2018
• Est. Priority Date: 01/28/2015
• Status: Active Grant

• Current Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Original Assignee: Rockwell Collins, Inc. (Raytheon Technologies Corporation d/b/a RTX)
• Inventors: Breiholz, Arlen E., Kronfeld, Kevin M., Sishtla, Venkata A.
• Primary Examiner(s): Bythrow, Peter
• Assistant Examiner(s): Malley, Sr., Daniel P
• Application Number:
  US14/608,071
• Time in Patent Office: 1,084 Days
• CPC Class Codes: G01S 13/106 using transmission of pulses having some particular characteristics G01S13/12, G01S13/22, G01S13/24, G01S13/26, G01S13/28 and G01S13/30 take precedence
• CPC Class Codes: G01S 13/22 using irregular pulse repetition frequency G01S13/12 takes precedence
• CPC Class Codes: G01S 13/87 Combinations of radar systems, e.g. primary radar and secondary radar
• CPC Class Codes: G01S 13/95 for meteorological use
• CPC Class Codes: G01S 13/951 ground based
• CPC Class Codes: G01S 13/953 mounted on aircraft
• CPC Class Codes: G01S 13/955 mounted on satellite
• CPC Class Codes: G01S 7/003 Transmission of data between radar, sonar or lidar systems and remote stations
• CPC Class Codes: G01S 7/28 Details of pulse systems
• CPC Class Codes: G01S 7/2813 Means providing a modification of the radiation pattern for cancelling noise, clutter or interfering signals, e.g. side lobe suppression, side lobe blanking, null-steering arrays specially adapted to secondary radar systems G01S13/762; aerials or aerials systems H01Q21/29, H01Q25/00
• CPC Class Codes: G01S 7/292 Extracting wanted echo-signals
• CPC Class Codes: Y02A 90/10 Information and communication technologies [ICT] supporting adaptation to climate change, e.g. for weather forecasting or climate simulation

Abstract

Systems and methods for controlling a weather radar system are provided. A system for controlling a weather radar system includes a communications system including a transmitter-receiver and a processor. The transmitter-receiver is configured to receive first weather data from an external location. The first weather data includes a first weather condition, a location of the first weather condition, and a time of sensing the first weather condition. The processor includes a control module coupled with the communications system and configured to determine a point of interest based on the first weather data; acquire, by controlling an onboard weather radar system, second weather data at the point of interest; provide data representative of weather near the point of interest based at least in part on the second weather data; and transmit, by the transmitter-receiver, the data representative of weather near the point of interest to an external weather radar system.

Claims

1. A weather radar system, comprising:

a communications system including a transmitter-receiver configured to receive first weather data indicative of a characteristic of a first weather condition from an external location; and

a processor comprising a control module coupled with the communications system and configured to;

determine an operational parameter of an onboard weather radar system based on the characteristic of the first weather condition;

control operation of the onboard weather radar system based on the determined operational parameter by controlling a radar scanning operation of the onboard weather radar system to acquire second weather data, wherein the determined operational parameter comprises a plurality of areas where storms are not likely to arise based on a threshold convective likelihood value, and wherein the control module is further configured to control operation of the onboard weather radar system to decrease a number of scans directed to the plurality of areas where storms are not likely to arise; and

transmit, by the transmitter-receiver, the second weather data to an external weather radar system.

2. The weather radar system of claim 1, wherein the characteristic of the first weather condition comprises a maximum altitude of a detected cloud formation, and wherein the determined operational parameter comprises a maximum scanning altitude.

3. The weather radar system of claim 1, wherein the characteristic of the first weather condition comprises a nature of forecasted weather cells, the processor further configured to vary pulse widths of the radar scanning operation based on the nature of forecasted weather cells.

4. The weather radar system of claim 1, wherein the determined operational parameter comprises at least one of a maximum number of scanning pulses, a maximum width of scanning pulses, and a maximum repetition frequency of scanning pulses.

5. The weather radar system of claim 1, wherein the control module is further configured to analyze the second weather data based on the characteristic of the first weather condition indicating a level of convective activity, and provide display data based on the second weather data.

6. The weather radar system of claim 1, wherein the control module is further configured to modify a scan pattern of the onboard weather radar system based on the first weather data and a range of the weather radar system.

7. The weather radar system of claim 1, wherein the determined operational parameter defines an area of a weather cell, and the processor is configured to vary a pulse width of the radar scanning operation.

8. The weather radar system of claim 1, wherein the first weather data includes Vertically Integrated Liquid Water data (VIL) or Composite Reflectivity data (CR), and the processor is configured to use the VIL data or CR data to control the radar scanning operation of the onboard weather radar system to identify missed storm cells.

9. A method, comprising:

receiving, by a communications module, first weather data indicative of a characteristic of a first weather condition from an external location;

determining, by a control module, an operation parameter of an onboard weather radar system based on the characteristic of the first weather condition; and

controlling, by the control module, the onboard weather radar system based on the operation parameter by controlling a radar scanning operation of the onboard weather radar system to acquire second weather data by allocating weather radar scans to areas where the first weather data is least current.

10. The method of claim 9, wherein the characteristic of the first weather condition comprises a maximum altitude of a detected cloud formation, and wherein the operation parameter comprises a maximum scanning altitude.

11. The method of claim 9, wherein the characteristic of the first weather condition comprises a nature of forecasted weather cells, wherein controlling the radar scanning operation includes varying pulse widths of the radar scanning operation based on the nature of forecasted weather cells.

12. The method of claim 9, wherein the operation parameter comprises at least one of a maximum number of scanning pulses, a maximum width of scanning pulses, and a maximum repetition frequency of scanning pulses.

13. The method of claim 9, wherein the operation parameter comprises a plurality of areas where storms are not likely to arise based on a threshold convective likelihood value, and wherein the control module is further configured to control operation of the onboard weather radar system to decrease a number of scans directed to the plurality of areas where storms are not likely to arise.