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8730088 Radar coherent processing interval scheduling via ad hoc network  
Techniques disclosed herein include systems and methods for accurately scheduling radar and radio events against each other. Specifically, a scheduling manager can schedule radar events based on...
8645053 Relative vehicular positioning using vehicular communications  
The relative position of one vehicle vs. another vehicle, both driving in a vehicular environment, is determined using vehicular communications based on the IEEE 802.11 standard. The relative...
8334800 On-vehicle radar device  
A radar device includes: a frequency modulating unit for modulating a frequency of a transmission signal by a triangular wave; a transmitting unit for pulsing the frequency modulated transmission...
7876261 Reflected wave clock synchronization  
A radar system has a phased-array antenna and plural local oscillators for controlling local transmit/receive units. The local oscillators are slaved to a master oscillator. The analog clock signal...
7649925 Time transfer utilizing ultra wideband signals  
Time is transferred from an ultra wideband (UWB) transmitter to UWB receiver by transmitting a signal structure having an associated timing reference point together with a time value for the timing...
7486221 Methods and systems for using pulsed radar for communications transparent to radar function  
A method and system are disclosed where transmitted radar pulses are utilized for both a radar sensing function and for data communications. The data communications are performed in a manner that...
7397420 Timing adjustment method for radar, and radar apparatus having automatic timing adjusting function  
On/off timing of an amplifier and timing of antenna selection are accurately adjusted. When adjusting the on/off timing of the amplifier, modulation of a transmit signal is stopped, and a switch is...
7254401 Network-based method and system for determining a location of user equipment in CDMA networks  
A method and system for determining a location of a user equipment using RTT measurements from a connected node B and RTT measurement of other node Bs which are not connected to the user equipment....
7075477 Radar  
A radar includes a transmission signal processing system, a reception signal processing system, an auxiliary signal processing system, a transmission-signal input unit, and a search determination...
7071868 Radar detection method and apparatus  
A radar system and method use a radar FMCW chirp having variable chirp characteristics.
6989784 Transmission-reception apparatus and operation determination method thereof  
A transmission-reception apparatus includes a transmission section, a reception section, a transmission control section, a signal detection section, and an operation determination section. The...
6982634 Method and apparatus for reducing blind spots in obstacle detection  
A method and apparatus for reducing blind spot in obstacle detection as a vehicle moves in reverse relate to widening the transmission angle on two sets of ultrasonic transducers located at the...
6894635 System and method for correction of discontinuities in an antenna model  
A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. When revisit times are computed for each...
6873284 System and method for non-maximum dwell duration selection for use in detecting emitter signals  
A system and method is provided for detecting emitter signals and for determining a scan strategy for a receiver system that receives such emitter signals. Typically, the minimum dwell duration of...
6697011 Doppler radar device  
A doppler radar device having comparing means 142 for comparing the level of pulse signal to be transmitted, sampled through a burst gate, with a predetermined threshold value and search means 143...
6650274 Radar imaging system and method  
An imaging system and method. The invention provides an intra-pulse repetition interval (PRI) agile beam technique for enhanced resolution that can be used at aspect angles near the velocity vector...
6452536 Antenna system  
A method for scheduling radar transmissions for a phased array antenna system having at least two antenna faces, in which each respective antenna face is configured to receive echoes of possible...
6272446 System and a method for measuring a continuous signal  
A system, and method of operating the system, for measuring a continuous signal, having at least two transducers for measuring the continuous signal and for each outputting a signal relating to the...
6201819 Process for transmitting data packets from mobile stations to base stations in mobile radio systems operated on the time multiplex system  
A process for the transmission of data packets from mobile stations to base stations in mobile radio systems operated by the time-division multiplex method where an effective utilization of...
6064331 Pulse repetition frequency section method and system  
The objectives of the invention are met by an improved radar tracking system and a process of radar tracking. In the improved system and process, an estimate of a target range and a range...
5973636 Radar apparatus with a simplified construction  
A single antenna is used so that time-division transmission and reception is carried out in a radar apparatus for obtaining a distance and a relative speed with respect to a target object based on...
5831569 Method and apparatus for injecting synthetic pulses for increased transmitter stability  
An apparatus and method for improving stability in a transmitter receiving a staggered pulse train includes maintaining a constant temperature of the transmitter at the start of each pulse of the...
5095312 Impulse transmitter and quantum detection radar system  
Pulses of short duration are radiated by an impulse radar transmitter wit time domain intervals under control of a clock to monitor a moving target from which echo pulses are reflected. The echo...
4942403 Phased-array radar  
A phased-array radar capable of electronically directing a directional beam of an antenna in any of N different directions, i.e., direction θ1 to direction θN. Scanning of the directional beam is e...
4912473 Radar equipment  
A radar equipment comprising a display unit (FIG. 1) and a scanning unit (FIG. 2) linked together by electrical conductors (94,72,106,26) for the transmission of information and/or control signals...
4746922 Method of and device for removing range ambiguity in a pulse-doppler radar and radar including such a device  
This invention relates to a method of and a device for removing range ambiguity in a pulse Doppler radar and to a radar including such a device especially for missile guidance. On tracking...
4710774 Aircraft collision avoidance system  
A communication system particularly adapted for use in an aircraft collision avoidance system wherein the transmitted portions of messages exchanged between aircraft consist of pulses or pairs of...
4668950 Encoding apparatus and method for a position coded pulse communication system  
Pulse position coding is used to transmit several channels of data from a ground radar transmitter to a receiver in an airborne, remotely-piloted vehicle. The system is designed to ignore...
4654665 Radar system  
A radar system comprises means for forming a transmission pulse signal as m sets of n pulses, the individual sets having respective PRPs Ti (i=1, 2, . . . , m) moving target detection means, and...
4642641 Variable PRF target tracking radar  
A high PRF pulse doppler radar for tracking moving targets is described wherein the PRF of the transmitted signal is varied within predetermined PRF limits to keep the target reflected high PRF...
4593286 Method of operating an agile beam coherent radar  
A method of time scheduling mode dwell times corresponding to a multiplicity of targets, displaced in angle, range and velocity, in the frame time of an agile beam coherent radar without reducing...
4375641 Method in a tracking radar to attain a large unambiguous range for detected targets by means of radar pulses with high repetition frequency  
The invention relates to a method for a tracking radar which transmits radar pulses towards a certain target whose target range from the beginning is known. The carrier frequency of the transmitted...
4320397 Echo tracker/range finder for radars and sonars  
An echo tracker/range finder or altimeter in which the pulse repetition frequency (PFR) of a predetermined plurality of transmitted pulses is adjusted so that echo pulses received from a reflecting...
4308538 AICBM Decoy resolution by coherent integration  
A receiver in a radar system has two feed horns which supply a hybrid. The ybrid sums the amplitude of the signals from the feed horns at its first output and subtracts the signals at its second...
4292638 Augmented radiometric system  
An improved microwave radiometric system features the employment of incoherent noise illumination of a selected target for improving the measured radiometric temperature contrast between the target...
4225863 Simplified system for estimating pulse radar doppler frequency  
A method for determining doppler frequency by the measurement of the maxi pulse-to-pulse difference over one doppler cycle. A box-carred (sample-and-hold) phase detector's output is differentiated...
4143373 Adaptive radar systems and methods therefor  
Radar systems in which target detection and unambiguously measured range rate are derived from returns from a high pulse repetition frequency (PRF) transmitted waveform; and wherein a lower PRF...
4128835 Method and apparatus for measuring distance between an aircraft and a ground station  
A distance measuring system is provided including a ground station transponder continuously transmitting a repeating pseudorandom coded bit pattern, and at least one aircraft interrogator receiving...
4126859 Ground station for a round-trip-path distance-measuring system  
This DME ground station permits the distance from the touchdown point (where no transponder can be installed) to be measured on the aircraft without any change in the airborne equipment. The time...
4106017 System for sensing velocity through the use of altimetry signals  
A system for determining the relative velocity of two objects in a direction substantially transverse to a line between them wherein a first of the objects, for example an aircraft, transmits a...
4086590 Method and apparatus for improving the slowly moving target detection capability of an AMTI synthetic aperture radar  
Detection of slowly moving and stationary targets that are normally obscured by ground clutter is accomplished by an AMTI synthetic aperture radar system that utilizes multiple receiving antennas...
4064510 High repetition frequency side-looking pulse radar system  
The invention relates to side-looking radar systems and more especially to high altitude airborne radar systems functioning at a high repetition frequency. In order to avoid ambiguities in regard...
4014021 Radar for short range measurements  
In a radar installation for measuring distances by transmitting and receig signal modulated by sequences of pseudo-random bits, generation both of the sequence of pseudo-random bits and of...
4001824 DME timing apparatus and methods  
A ranging timer allows decoded data pulses to toggle a flip flop, thereby initiating a transmission cycle. In a specific embodiment, the data pulses condition a second flip flop to energize the DME...
3875549 TRANSMITTER TRIGGER CIRCUIT FOR ECHO-SOUNDERS OR SIMILAR DEVICES  
The invention relates to a device for adjusting the trigger timing of distance measuring equipment based on measuring the delay time for reflection of transmitted pulses of energy, e.g....
3858208 AUTOMATIC PRF SELECTION TO OPTIMIZE RANGE AND DOPPLER VISIBILITY IN RADAR TRACKING  
A radar system is disclosed which uses an established track predicted range, Rp, and radial velocity, Rp, of a target to select a frequency, F, and PRF for optimum range and doppler visibility in...
3833904 AIRBORNE SWITCHED ARRAY RADAR SYSTEM  
An airborne radar system is disclosed utilizing multiple fixed antenna arrays mounted within the periphery of the aircraft to avoid aerodynamic modifications and optimumly placed to achieve 360° ...
3801981 REMOTE CLOCK SYNCHRONIZATION SYSTEM  
A system for the precise synchronization of high frequency electronic clo by providing each station other than the master station with a tracking circuit. The tracking circuit consists of an early...
3792476 METHOD AND SYSTEM OF COMMUNICATION BETWEEN SEVERAL GROUND STATIONS AND A TRANSPONDER SATELLITE  
A method of communication between several ground stations and a transponder satellite by time-division multiple access (TDMA) operation, which comprises combining the time-multiplexed and preambled...
3778827 SHORT RANGE MONOPULSE MARINE SEARCH RADAR FOR SMALL OBJECT DETECTION  
The subject invention comprises a short range monopulse marine search radar for detecting small targets such as channel markers in the water. The radar has its antenna directed so that its...
Matches 1 - 50 out of 131 1 2 3 >