Class / Patent application number | Description | Number of patent applications / Date published |
342192000 | Spectrum analysis | 9 |
20080218406 | Radar - A radar wherein, in response to an increase in the level of noise appearing in a frequency spectrum caused by interference being superimposed on a beat signal, peaks exceeding a threshold are extracted as target peaks in an ordinary state and a predetermined number of peaks in descending order starting from the peak having the highest peak value are extracted in the case where interference occurs. | 09-11-2008 |
20120032838 | METHOD FOR DETECTING LOSS OF SENSITIVITY OF AN FMCW RADAR LOCATING DEVICE BY DIFFUSE SOURCES OF LOSS - A method for the detection of sensitivity losses of an FMCW radar locating device due to diffuse sources of loss, in which the radar locating device emits a transmit signal whose frequency is periodically modulated in successive modulation ramps, and at least one power characteristic of at least one frequency portion of a signal received by the radar locating device is evaluated, wherein the power of the transmit signal is varied cyclically, in each case after the completion of a modulation ramp, and the sensitivity losses are determined on the basis of differences in the power characteristics of signals received during successive modulation ramps having identical modulation. | 02-09-2012 |
20120242537 | MONITORING SYSTEM FOR AN INNER AREA OF A MACHINE - A monitoring system for an inner area of a machine includes a radar source radiating or injecting radar radiation into the inner area and a radar receiver receiving radar radiation reflected in the inner area and emitting the reflected radar radiation as a received signal. A control and evaluation unit determines an actual signature from the received signal and compares the actual signature to a stored nominal signature representing a fault-free machine. An output unit outputs a fault error signal when a discrepancy between the actual signature and the nominal signature exceeds a tolerance value. | 09-27-2012 |
20120268317 | FMCW Radar Sensor System Having a Device for Detecting a Radome Coating - An FMCW radar sensor system is described having an antenna covered by a radome, a mixer for mixing a frequency-modulated transmission signal with a signal received by the antenna, a device for recording the mixed product of the mixer as a time-dependent signal, a device for calculating the spectrum of the time-dependent signal, and a device for detecting a reflecting coating on the radome, characterized in that the device for detecting the reflecting coating is configured for analyzing the time-dependent signal and for determining the extent of reflection on the radome based on the amplitude of this signal. | 10-25-2012 |
20130038486 | GENERATING RADAR CROSS-SECTION SIGNATURES - In one aspect, a method to generate radar cross section (RCS) signatures, includes determining a spectrum of an object and using the spectrum of the object to generate RCS signatures of a plurality of objects. In another aspect, an apparatus to generate radar cross section (RCS) signatures includes circuitry to determine a spectrum of an object; and use the spectrum of the object to generate RCS signatures of a plurality of objects. In a further aspect, an article includes a machine-readable medium that stores executable instructions to generate radar cross section signatures (RCS). The executable instructions cause a machine to determine a spectrum of an object and use the spectrum of the object to generate RCS signatures of a plurality of objects. | 02-14-2013 |
20130154875 | METHOD AND IMPLEMENTATION FOR CALCULATING SPEED DISTRIBUTIONS WITH MULTI-PRI AND SMPRF RADARS - A method and an arrangement are provided for producing a computed distribution of speeds of scatterers in a target volume ( | 06-20-2013 |
20140070983 | EXTRACTING SPECTRAL FEATURES FROM A SIGNAL IN A MULTIPLICATIVE AND ADDITIVE NOISE ENVIRONMENT - A spectral feature extracting engine, chirp detecting engine, and target classifying engine with corresponding method, system, and computer product are provided. Given a “noisy” signal having multiplicative and additive noise, the spectral feature extracting engine extracts spectral features from the noisy signal in the form of a spectral detection density. The extraction includes identifying an initial detection by comparing the spectral content of a subject time-frequency slice with an initial detection threshold calculated from a set of time-frequency slices, and determining the spectral detection density as a function of a number of identified initial detections and number of compared time-frequency slices. Based on the spectral detection density of the noisy signal, the chirp detecting engine detects multiple channel-induced and target-induced chirps present in the noisy signal and the target classifying engine classifies a target from the noisy signal. | 03-13-2014 |
20140368377 | DETECTION AND LOCKING TO THE ABSORPTION SPECTRA OF GASSES IN THE MILLIMETER-WAVE REGION - A frequency reference device that includes a frequency reference generation unit to generate a frequency reference signal based on an absorption line of a gas. | 12-18-2014 |
342193000 | Harmonic | 1 |
20090146869 | MULTI FREQUENCY SPECTRAL IMAGING RADAR SYSTEM AND METHOD OF TARGET CLASSIFICATION - A pulsed radar system uses simultaneous multiple frequency spectral response of life form targets to classify target type and movements. In particular classifying movements from human and animals such as walking and breathing. | 06-11-2009 |