Matches 51 - 100 out of 120 < 1 2 3 >
Match Document Document Title
5831570 Radar resolution using monopulse beam sharpening  
A method and apparatus for improving resolution of targets in a monopulse radar beam.
5828332 Automatic horizontal and vertical scanning radar with terrain display  
A weather radar and terrain map display system for aircraft with the terrain elevation and weather information displayed in an easy to read and quickly comprehendible presentation. The system...
5805100 Method and apparatus for universal display of alphanumeric data on radar displays  
A radar system embeds information into the radar picture data for display on any display device. The radar receiver communicates weather data to a signal processor which generates a weather array....
5781146 Automatic horizontal and vertical scanning radar with terrain display  
A weather radar and terrain map display system for aircraft with the terrain elevation and weather information displayed in an easy to read and comprehend presentation. The system includes an...
5726656 Atmospheric correction method for interferometric synthetic array radar systems operating at long range  
A method of computing and correcting phase errors due to atmospheric turbulence in a dual-antenna multiple-pass synthetic array radar (SAR) interferometer system. The method improves topographic...
5689267 Automatic VSWR sensing for aircraft-mounted pulse radar systems  
An aircraft mounted pulse radar unit transmits a low-energy, test output pulse and processes the resulting test return signal to determine the VSWR and whether the VSWR exceeds a predetermined...
5654890 High resolution autonomous precision approach and landing system  
An aircraft including an approach and landing system, including a navigation unit for providing navigation information, a weather radar unit for providing radar information, a processor which...
5615118 Onboard aircraft flight path optimization system  
An onboard aircraft flight optimization system that includes an onboard performance management computer, a control display unit, an infrared probe, a temperature probe, a weather radar, an inertial...
5602543 Detection system for use in an aircraft  
A detection system for use in an aircraft which is able to monitor atmospheric conditions ahead of the aircraft, generate an alarm signal if adverse atmospheric conditions exist ahead of the...
5539409 Apparatus and method for windshear data processing  
The present invention improves upon conventional windshear data processing techniques in three mutually exclusive aspects. First, the present invention provides an improved method and system for...
5523759 In flight doppler weather radar wind shear detection system  
An airborne doppler radar wind shear detection system has a volumetric scanning pattern for providing atmospheric measurement data for individual resolution cells that are formed into a 3-D grid of...
5488375 Airborne weather radar system with icing detection capabiliy  
A weather radar system with icing detection capability is disclosed. Increased radar system sensitivity is combined with aircraft outside air temperature to determine super-cooled liquid water...
5398033 Weather radar axonometric display mode implementation  
A horizontal plan view and a vertical side view of a weather disturbance are combined into a single axonometric display to facilitate analysis of the disturbance. Desired azimuth and elevation...
5363107 Storage and transmission of compressed weather maps and the like  
Representing weather data with elliptical or polygonal representations for transmission or reception. Ellipseticity may be determined, vertex coordinates may be shuffled, or polygons may be...
5331330 Apparatus and method for detecting and displaying lightning  
A lightning detection and display system for aircraft is disclosed. A lightning detection system detects the bearing and distance of lightning strikes to the aircraft and the aircraft navigation...
5317315 Method and device for measurement of the velocity of a moving target by making use of the Doppler shift of electromagnetic radiation  
Method and apparatus for measurement of the velocity of a moving target (20) in radio frequencies. From the measurement station (10) and from the target station (20), radio signals (S 1 ,S 2 ) are...
5311184 Airborne weather radar system with aircraft altitude and antenna tilt angle dependent sensitivity time control  
Sensitivity time control (STC) data for an airborne weather radar system is provided as a function of aircraft altitude and radar system antenna tilt angle to normalize radar return signals at high...
5311183 Windshear radar system with upper and lower elevation radar scans  
The present invention is an airborne radar system which scans the flight path of an aircraft with two radar scans, an upper elevation pointing above local level and a lower elevation scan pointing...
5202690 Automatic horizontal and vertical scanning radar  
A Weather radar and map display system for use in aircraft includes a transmitter for transmitting radar signals outwardly from the aircraft, a receiver for receiving back reflected radar signals,...
5198819 Weather radar display system  
A weather radar display system and method for obtaining and storing radar return data for a plurality of horizontal and vertical sweeps, each horizontal sweep occurring at a different tilt angle...
5196854 Inflight weather and ground mapping radar  
The present invention is a radar system that corrects for changes in apparent reflectivity and two-way precipitation attenuation using a correction curve that includes a segment for low rain rates,...
5164731 Turbulence radar system  
The present invention is a radar system that detects turbulence by breaking a range cell return down into spectral segments using an FFT processor. The standard deviation of the spectrum is...
5077558 Airborne wind shear detection weather radar  
An airborne wind shear detection radar includes a transmitter for transmitting successive radar beams into airspace in front of an aircraft and a receiver for receiving reflected signals. The radar...
5059967 Apparatus and method for displaying weather information  
A weather display apparatus and method wherein the relative positions of weather information and reference marks are accurately displayed. Information obtained from typical airborne weather radars...
5053778 Generation of topographic terrain models utilizing synthetic aperture radar and surface level data  
Topographical terrain models are generated by digitally delineating the boundary of the region under investigation from data obtained from an airborne synthetic aperture radar image and surface...
5053773 Doppler compensated airborne weather radar system  
An airborne weather radar system having a capability of compensating for variable Doppler shift caused by the forward motion of the aircraft and the relative motion of the antenna sweep which...
5049886 Weather radar system with improved display characteristics  
A weather radar system having improved display characteristics for rotation and translation of weather data where the rotations and translations are accomplished by converting data in a dedicated...
5028929 Icing hazard detection for aircraft  
An airborne Icing Hazard Detector for aircraft uses dual frequency radar beams which are transmitted into a cloud ahead of the aircraft. The reflected signals at each of the two frequencies are...
4990922 System and method for measuring ocean surface currents at locations remote from land masses using synthetic aperture radar  
This is a system for measuring ocean surface currents from an airborne platform. A radar system having two spaced antennas wherein one antenna is driven and return signals from the ocean surface...
4965573 Forward looking windshear detection system  
An integrated, remote sensing and reactive detection system is provided for detecting and confirming the presence of hazardous microbursts, macrobursts, and windshears in the general flight path of...
4940987 Automatic horizontal and vertical scanning radar  
An automatic horizontal and vertical scanning radar for aircraft for displaying weather conditions includes an antenna system mounted in the aircraft for sweeping horizontally and vertically in...
4881077 Radar arrangement  
A radar arrangement which is particularly useful for the terrain following radar of an aircraft avoids disturbances from rain echoes by utilizing an antenna arrangement with a transmitting/receving...
4868917 Radar arrangements  
A radar apparatus transmits right circular polarized signals and selects the right circular polarized components of the corresponding returns. It also transmits left circular polarized signals and...
4739327 Method and arrangement for the suppression of rain echos in a terrain following radar  
To suppress rain echos in a terrain tracking radar with elevation monopulse devices, the signal in the difference channel is amplified by a predetermined factor. By comparing the level of the sum...
4600925 Vector phase angle change distribution processor  
A system and technique is disclosed for estimating the real-time spectral width of radar returns to provide an indication of weather turbulence. The system includes a Doppler radar to provide the...
4533915 Radar terrain signal suppressor  
An apparatus for the suppression of terrain generated clutter in a pulsed weather radar system. Weather induced returns typically having scintillation frequencies greater than 50 Hz may be isolated...
4529983 Apparatus and method for the correction of attenuation-induced errors in a weather radar receiver  
Disclosed is a method and apparatus for adjusting the gain in a weather radar receiver to correct for precipitation induced transmission path attenuation. The receiver gain is controlled in a known...
4490720 Multipulse signal processing for radar system  
A radar system alternately transmits relatively short and long pulses. The video signals corresponding to the target returns from consecutive pulse transmissions are converted to digital format and...
4435707 Weather radar with signal compensation for precipitation  
A weather radar incorporating a sensitivity time control modifying circuit for adaptively increasing the gain of the IF amplifier as a function of precipitation rate; thereby increasing the range...
4346595 CAT Altitude avoidance system  
A method and apparatus are provided for indicating the altitude of the tropopause or of an inversion layer wherein clear air turbulence (CAT) may occur, and the likely severity of any such CAT,...
4283725 In-flight aircraft weather radar calibration  
A weather radar calibration system, wherein one or more radar reflectors are located at a known position adjacent to an airport runway. Each of the reflectors are shaped to direct reflective...
4270127 Digital data compression circuit  
An airborne weather radar system displays on a display screen a weather map in the form of a matrix of spots of intensity with N possible intensity levels ranging from a lowest level to a highest...
4249174 Aircraft weather radar system  
A low cost airborne weather radar system suitable for mounting in the wing of a single engine aircraft. The radar antenna is a truncated parabolic dish. The receiver/transmitter, relative to...
4223309 Turbulence detector for non-coherent pulse radar  
Information about air turbulence and wind shear can be obtained by analyzing the fluctuation of the envelope, at the detector output of a pulse radar, of backscatter from hydrometeors which trace...
4128834 Range mark generation  
In a digital weather radar display, of the type which displays information on a cathode ray tube in the form of parallel intensity modulated sweep lines and which displays range marks in the form...
4103300 Air navigation and landing aid system  
An air navigation and landing aid system wherein a pair of transponder beacons are located at known positions adjacent an airport runway. The aircraft carries a weather pulse radar system and an...
4092644 Digital weather radar including target severity analysis capability  
A digital weather radar system having a mode that clears the display of all clutter and lighter precipitation to reveal or positively present only the contoured areas, i.e., the severe "cores" or...
4043194 Wind shear warning system  
Wind conditions along the projected flight path of an aircraft are measured and displayed. Wind velocity and direction at the aircraft and at the projected touchdown or takeoff point of the...
4042922 Multi-mode radar system  
A multi-mode radar includes a local oscillator referenced to the radar magnetron and includes logic provided to side step the local oscillator during the latter portion of the radar interpulse...
4038655 Radar contour edge restore circuit  
Contour correction circuitry is provided for use in a weather radar which has iso-contour circuitry and which has a digital display having a tendency to undesirably not display the trailing edge...
Matches 51 - 100 out of 120 < 1 2 3 >