| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 342059000 | PLURAL RADAR | 14 |
| 20100079330 | Networked waveform system - Certain embodiments provide a network waveform system that can include multiple radars disposed at different geographical positions within an environment. The multiple radars may be configured to transmit a network waveform. The network waveform may include multiple radar waveforms. Each radar waveform of the multiple waveforms may be transmitted by a specific radar of the multiple radars. The system can also include a computer system coupled with the multiple radars that can include a processor and a memory. The memory may be configured to store information including data received from the multiple radars, data processed by the processor, and processing code executable by the processor. The processing code may include instructions to receive output data from the multiple radars resulting from the transmitted network waveform instructions to jointly process the output data from the multiple radars to determine a measurement of the environment based on the network waveform. | 04-01-2010 |
| 20090040094 | OBJECT DETECTING APPARATUS - An object detecting apparatus for detecting an object by a plurality of radars, with improved accuracy of identity determination and acquisition of position information in fusion of detection results. The object detecting apparatus is arranged to obtain a moving path of a detected point by a radar and to perform pairing as follows: if a detected point by a radar exists in a region based on the moving path and if a relative velocity thereof is matched with that of the detected point of interest, the detected point is paired as a corresponding detected point. | 02-12-2009 |
| 20100103023 | RADAR SYSTEM - A radar system includes radars and a controller. The controller controls waveform patterns of the radars. As a signal processing unit of each of the radars receives an instruction from the controller, the signal processing unit selects a frequency modulation pattern of a VCO between an FM-CW mode and a CW mode stored in a waveform memory to perform mode switching, and then outputs a radio wave from a transmission antenna. Then, the controller instructs each signal processing unit for a frequency modulation pattern of each radar or an output timing of each pattern so that a time, at which continuous wave signals output from the radars have the same frequency, is not continuous. | 04-29-2010 |
| 20080284638 | RADAR DEVICE AND METHOD FOR ADJUSTING AMONG RADAR SITES - A radar device includes a generation unit, a transmission unit, and a control unit. The generation unit selectively generates a set of a plurality of transmission signals whose center frequencies are different from one another within an assigned frequency band. The transmission unit emits the transmission signals. The control unit controls the generation unit so as to vary the center frequencies for each emission of the transmission signals. | 11-20-2008 |
| 20080291077 | APPARATUS AND METHOD FOR RADAR IMAGING BY MEASURING SPATIAL FREQUENCY COMPONENTS - A radar imaging system is provided that directly measures the spatial frequency components of a scene via digital-beam-forming techniques applied along the cross-track dimension. Separate transmit and receive antennas provide increased integration time for the receive function, thus improving the signal-to-noise ratio. A segmented receive antenna is employed and processed as a series of interferometers sensitive to spatial frequency components of the scene corresponding to the separation between pairs of antenna elements. Range gating is used in the along-track dimension to divide the return from an illuminated swath into multiple range bins that may be processed independently. The system provides an improved signal-to-noise ratio and lends significant flexibility to the image formation process, improving the quality of the radar imaging. An embodiment having multiple transmit antennas is also provided that enables the generation of three-dimensional stereoscopic radar images. | 11-27-2008 |
| 20100013697 | METHOD OF AND DEVICE FOR TRACKING AN OBJECT - A method of tracking an object including the steps of: collecting N measurements of range R | 01-21-2010 |
| 20080231496 | Method for determining noise floor level and radar using the same - A method for a radar for detecting a noise floor level of an electric signal corresponding to an incident radio wave received by the radar, the incident radio wave including a return of a radar wave that is transmitted from the radar toward a measuring range of the radar to detect target object characteristic including presence of a target object within the measuring range of the radar, a distance between the target object and the radar, and a relative speed of the target object to the radar is provided. The method includes steps of: calculating a histogram of intensities of frequency components, the frequency components exceeding a predetermined value relating to the measuring range, and extracting an intensity having the maximum height in the histogram as the noise floor level of the electric signal. | 09-25-2008 |
| 20110050483 | SYSTEM TO PREVENT TWO ROTATING ANTENNAS FROM ILLUMINATING EACH OTHER - An apparatus or a method for preventing radio-frequency (RF) interferences between rotating antennas. For example, the invention is particularly applicable to radar and communication systems on board naval ships. | 03-03-2011 |
| 20120200448 | RADAR NETWORK COMMUNICATION THROUGH SENSING OF FREQUENCY HOPPING - In one embodiment, a radar communication system includes a plurality of radars having a communication range and being capable of operating at a sensing frequency and a reporting frequency, wherein the reporting frequency is different than the sensing frequency, each radar is adapted for operating at the sensing frequency until an event is detected, each radar in the plurality of radars has an identification/location frequency for reporting information different from the sensing frequency, a first radar of the radars which senses the event sends a reporting frequency corresponding to its identification/location frequency when the event is detected, and all other radars in the plurality of radars switch their reporting frequencies to match the, reporting frequency of the first radar upon detecting the reporting frequency switch of a radar within the communication range. In another embodiment, a method is presented for communicating information in a radar system. | 08-09-2012 |
| 20120032833 | 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 scheduled radio events (wireless network communication events). A given radio schedule for a compact radar sensor can be a relatively complicated schedule, especially when the compact radar sensor operates as part of an ad hoc network. In certain embodiments, the scheduling manager identifies a radio transmission schedule of neighboring radar nodes or compact radar sensor units. Such a radio transmission schedule of neighboring nodes can include information on when neighboring nodes will be receiving or transmitting data. The scheduling manager then schedules radar events to be executed by the radar device at available times, or at times that do not overlap with scheduled radio events. | 02-09-2012 |
| 20110260908 | METHOD FOR MITIGATING THE EFFECTS OF CLUTTER AND INTERFERENCE ON A RADAR SYSTEM - A method for mitigating against a clutter source or other interferer in a high precision radar is disclosed. The clutter source or interferer may be a wind farm. The method includes positioning a plurality of relatively low resolution radars, such as low cost marine navigation radars, in or about the interferer, and fusing data from them together, to produce object positional data of increased accuracy. One or more of the radars may be adapted to have a radiation beam pattern directed more towards the vertical, and such adapted radars may advantageously be located more centrally within the interfering region. Data from the individual radars may be fused in any suitable manner, and other information, such as ADS-B broadcasts may be included. Data relating to aircraft may be supplied to operators to supplement air traffic control, and air defence radars, and data relating to shipping around sea based wind farms supplied to vessel traffic system radar operators. | 10-27-2011 |
| 20120013498 | EXPANDABLE AND RECONFIGURABLE INSTRUMENT NODE ARRAYS - An expandable and reconfigurable instrument node includes a feature detection means and a data processing portion in communication with the feature detection means, the data processing portion configured and disposed to process feature information. The instrument node further includes a phase locked loop (PLL) oscillator in communication with the data processing portion, the PLL oscillator configured and disposed to provide PLL information to the processing portion. The instrument node further includes a single tone transceiver and a pulse transceiver in communication with the PLL oscillator, the single tone transceiver configured and disposed to transmit or receive a single tone for phase correction of the PLL oscillator and the pulse transceiver configured and disposed to transmit and receive signals for phase correction of the PLL oscillator. The instrument node further includes a global positioning (GPA) receiver in communication with the processing portion, the GPS receiver configured and disposed to establish a global position of the instrument node. | 01-19-2012 |
| 20120133546 | COMBINING DATA FROM MULTIPLE RADAR SIGNALS ON A SINGLE PLAN POSITION INDICATOR (PPI) DISPLAY - In certain embodiments, a method for combining data from multiple radar signals on a single PPI includes receiving, from a first radar device having a first angular range of visibility, first radar signal data corresponding to the first angular range of visibility. The method further includes receiving, from a second radar device having a second angular range of visibility, second radar signal data corresponding to the second angular range of visibility. The method further includes performing compensation processing on at least a portion of the second radar signal data to form modified second radar signal data that is correlated to the first radar signal data. The method further includes combining at least a portion the first radar signal data with at least a portion of the modified second radar signal data to form combined radar signal data and generating, based on the combined radar signal data, a display on a radar PPI display. | 05-31-2012 |
| 20120313807 | DEVICE AND METHOD FOR CONTROLLING TRACKING INFORMATION, AND RADAR DEVICE - This disclosure provides a tracking information control device. The device includes a receiver for receiving, from two radar devices, data relating to a target echo received by a radar antenna of one of the radar devices, and data relating to a target echo received by a radar antenna of the other radar device, the data being obtained from tracking the target echoes, respectively, a determiner for determining whether the target echoes indicate the same target object, an ID applier for applying the same ID to the target echoes when the determiner determines that the target echoes indicate the same target object, and a transmitter for transmitting the same IDs to the radar devices in order to inform whether the target echoes displayed by the radar devices, respectively, indicate the same target object. | 12-13-2012 |
