Abstract:
Systems and methods for improving display quality for at range weather data of smaller antenna size radar weather systems. A processor receives a column of quantized reflectivity data associated with an antenna from a radar system. The processor adjusts the column of quantized reflectivity data based on estimated quantized reflectivity data associated with a beam pattern for an antenna that is larger than the antenna associated with the received column of quantized reflectivity data.
Abstract:
Location systems and methods are operable to determine a location of an airborne vehicle. An exemplary embodiment identifies at least one object in a pre-captured image stored in an onboard memory and defined by a known location, identifies at least one ground object in a current radar image, correlates the ground object identified in the current radar image with the object identified in the pre-captured image, determines relative location between the installation vehicle and the identified object in the pre-captured image, and determines the location of the installation vehicle based upon the known location of the identified object in the pre-captured image and the determined relative location.
Abstract:
Optical communication systems and methods are operable to communicate optical signals across a gimbal system. An exemplary embodiment has a first optical rotary joint with a rotor and a stator, a second optical rotary joint with a rotor and a stator, and an optical connector coupled to the stators of the first and the second optical rotary joints. The stator of the first optical rotary joint is affixed to a first rotational member of the gimbal system. The stator of the second optical rotary joint is affixed to a second rotational member of the gimbal system. A first optical connection coupled to the rotor of the first optical rotary joint and a second optical connection coupled to the rotor of the second optical rotary joint remain substantially stationary as the gimbal system orients an optical communication device in a desired position.
Abstract:
After deactivation of the presentation of weather information on a radar weather display, systems and methods re-trigger when weather conditions change so that the crew is advised of the changed weather conditions. An exemplary embodiment monitors at least one condition of the weather and in response to the monitored weather condition meeting a re-triggering criteria, presents an advisory to a crew member of the aircraft indicating at least presence of the weather.
Abstract:
Systems and methods for representing a weather hazard without also including a large percentage of non-hazard area. An exemplary system includes a memory that stores radar reflectivity data in a three-dimensional buffer, a display device and a processor that is in data communication with the memory and the display device. The processor receives a two-dimensional shape based on a portion of the data stored in the three-dimensional buffer, then finds a center of the shape. Next the processor finds the furthest away point of the shape in a plurality of regions sharing the center as a common point and generates a polygon based on the furthest away points. The display device displays the generated polygon. The shape is associated with hazardous weather information determined from the radar reflectivity data stored in the three-dimensional buffer. The display device is an aircraft weather radar display.
Abstract:
Systems and methods for improving relevant weather determination for aircraft at altitude. An exemplary system includes a weather radar component and memory that stores weather radar data in a three-dimensional (3D) buffer. A processor calculates vertically integrated reflectivity using the stored weather radar data at a predefined reference altitude at one or more locations from the aircraft. The processor then adjusts a lower boundary of a relevant weather envelope from a first value to a second value, if the vertically integrated reflectivity is greater than a predefined threshold. The range of the adjusted lower boundary of the envelope is associated with the weather radar data having the calculated vertically integrated reflectivity greater than the predefined threshold. A display device displays the weather radar data located within the envelope in a first manner and displays the weather radar data located outside of the envelope in a second manner.
Abstract:
Systems and methods for improving relevant weather determination for aircraft at altitude. An exemplary system includes a weather radar component and memory that stores weather radar data in a three-dimensional (3D) buffer. A processor calculates vertically integrated reflectivity using the stored weather radar data at a predefined reference altitude at one or more locations from the aircraft. The processor then adjusts a lower boundary of a relevant weather envelope from a first value to a second value, if the vertically integrated reflectivity is greater than a predefined threshold. The range of the adjusted lower boundary of the envelope is associated with the weather radar data having the calculated vertically integrated reflectivity greater than the predefined threshold. A display device displays the weather radar data located within the envelope in a first manner and displays the weather radar data located outside of the envelope in a second manner.
Abstract:
Systems and methods distinguish weather radar returns from terrain radar returns. An exemplary embodiment receives a radar return from a weather radar system on board an installation vehicle, receives ground-based weather radar information, compares a location of the radar return received from the onboard weather radar system with a corresponding location in the received ground-based, and determines that the radar return received from the onboard weather radar system is a weather radar return when a location in the received ground-based weather radar information indicates a presence of weather at the location of the radar return.
Abstract:
Systems and methods distinguish weather radar returns from terrain radar returns. An exemplary embodiment receives a radar return from a weather radar system on board an installation vehicle, receives ground-based weather radar information, compares a location of the radar return received from the onboard weather radar system with a corresponding location in the received ground-based, and determines that the radar return received from the onboard weather radar system is a weather radar return when a location in the received ground-based weather radar information indicates a presence of weather at the location of the radar return.
Abstract:
Dynamic weather model systems and methods are operable to assess weather in proximity to an airborne aircraft. An exemplary embodiment receives a radar return from the weather, determines reflectivity information from the received radar return, retrieves a weather model from a weather model data base, compares the weather with the retrieved weather model and the determined reflectivity information, predicts a characteristic of the weather based upon the comparison of the weather and the weather model, and determines if the predicted characteristic is potentially hazardous to the airborne aircraft. The weather model is defined by at least one weather modeling algorithm, and is defined by at least one of a parameter and a variable parameter range residing in a weather characteristics database.