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7427946 |
Object sensing apparatus
While an FM-CW mode for sensing an object, in which a frequency of an electromagnetic wave transmitted from a transmission/reception antenna 6 is continuously modulated, and also, a CW mode for...
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7425917 |
Radar for detecting the velocity of a target
A radar including a target measurement component, a differential velocity calculator and an overall velocity determination portion. The target measurement component transmits and receives an...
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7423579 |
Transmit-receive FM-CW radar apparatus
A transmit-receive FM-CW radar apparatus according to one mode of the invention comprises: a mixer for downconverting an IF signal; a switch provided on the input side of the mixer; and a switch...
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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...
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7391362 |
Linear FM radar
A FM-CW radar system comprises a frequency modulated continuous wave digital generator that produces both in-phase (I) and quadrature-phase (Q) outputs to orthogonally oriented transmitter...
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7379013 |
Detecting objects within a near-field of a frequency modulated continuous wave (FMCW) radar system
The present disclosure relates to a radar device and technique for detecting the presence of objects located in the near-field of a frequency modulated, continuous wave (FMCW) radar device. The...
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7372396 |
Transmit-receive FM-CW radar apparatus
A transmit-receive FM-CW radar apparatus according to one mode of the invention comprises: a mixer for downconverting an IF signal; a switch provided on the input side of the mixer; and a switch...
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7365676 |
Sensor for transmitting and receiving electromagnetic signals
The invention relates to a sensor comprising a housing, inside of which a transmitting antenna array that transmits electromagnetic transmission signals in a radiation area and a receiving antenna...
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7339518 |
FMCW radar device and method for detecting interference
An FMCW radar device executes a frequency analysis for a beat signal in a frequency increase interval and a frequency decrease interval, to obtain frequency components in a predetermined high...
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7336218 |
Radar system with peak frequency analysis and window functions
A radar system in which a beat signal is generated by transmitting a transmission signal that is subjected to frequency modulation into a triangular wave and receiving a reflection signal from a...
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7333051 |
Methods and devices for determining the linearity of signals
A method (for example, machine-implemented, e.g., via a receiver), for determining whether a transmitted pulsed-signal is a linear or non-linear frequency modulated (FM) signal, includes:...
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7324039 |
Short-range automotive radar transceiver
Automotive vehicle including a radar transceiver each including a heterodyne active IMPATT multiplier module arranged to receive a signal from a VCO, a first balance mixer arranged to receive a...
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7312742 |
Computerized tomography using radar
Sensing characteristics of an object includes transmitting a stepped-frequency radar through an object and detecting, with multiple receiving structures, deflected portions of the radar signal. The...
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7283087 |
Radar having a transmission oscillator which can be excited quasi-phase coherently by an evaluation oscillator
A radar is provided with transmitting means for transmitting a signal and with receiving means for receiving a reflection of the transmitted signal. The inventive radar is characterized in that the...
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7271761 |
Distance calculating method and system
In a system, a frequency-modulating unit is configured to frequency-modulate a radar wave signal within a predetermined frequency modulation range from bottom to top so that a frequency of the...
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7248207 |
System and method for sidelobe reduction using point spread function expansion
Systems and methods for detecting targets using pulse-compressed radar signals are disclosed. In one application, relatively small targets that are masked by the time-sidelobes of a larger target's...
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7242344 |
Radar apparatus and radar signal processing method
A radar apparatus calculates distances or relative speeds of a target according to a plurality of formulae. An predicted distance calculation formula is obtained at the following observation from...
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7239266 |
Radar altimeter
The present invention provides a radar altimeter system with a closed loop modulation for generating more accurate radar altimeter values. The system includes an antenna, a circulator, a receiver,...
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7221310 |
Electric wave axis adjusting apparatus for radar mounted on vehicle
The present invention provides an electric wave axis adjusting apparatus for an on-vehicle radar capable of readily and precisely adjusting an electric wave axis only by making the scanning range...
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7221309 |
FM-CW radar system
In an FM-CW radar system, a frequency modulating said modulating wave output from said modulating signal generator has a frequency variation skew with respect to a time axis (modulation skew), and...
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7218274 |
System and method for detection and tracking of targets
System and method for detection and tracking of targets, which in a preferred embodiment is based on the use of fractional Fourier transformation of time-domain signals to compute projections of...
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7209074 |
Temperature compensation improvements in radar apparatus
A radar-based distance measurement apparatus comprises a microwave circuit comprising a frequency generator which produces a microwave frequency signal, the frequency of which is modulated by an...
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7209073 |
Method and device for determining the filling level of a medium in a container
The invention relates to a method for determining the filling level of a medium in a container. A mixer that has at least one mixer blade and a mixer frequency (f <1>R</1> ) is disposed...
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7205932 |
Method and apparatus for improved determination of range and angle of arrival utilizing a two tone CW radar
An improved system is provided for aiming a shotgun-based or other countermeasure system so as to be able to countermeasure incoming rockets or projectiles. In one embodiment a shotgun aimed and...
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7196654 |
Vehicle positioning and tracking radar system
A vehicle positioning and tracking radar system includes a rotating antenna with a pair of spatially separated transmit feeds for simultaneously transmitting a pair of frequency-modulated...
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7190306 |
Method and system for detecting with radar the passage by a vehicle of a point for monitoring on a road
The invention relates to a method for detecting the passage by a vehicle of a determined point for monitoring on a road, wherein from a remotely situated location a radar beam is transmitted...
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7187321 |
Interference determination method and FMCW radar using the same
Occurrence of interference is detected using sampled amplitude data obtained by oversampling a beat signal. It is detected by comparing the absolute value (|VD|) of variation in the sampled data...
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7183968 |
FM-CW radar system
In an FM-CW radar system, a frequency modulating said modulating wave output from said modulating signal generator has a frequency variation skew with respect to a time axis (modulation skew), and...
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7176830 |
Image processing system for mounting to a vehicle
An image processing system to be mounted to a vehicle includes a radar adapted to measure distance and direction to an object based on reflected electromagnetic waves which are outputted to scan...
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7170440 |
Linear FM radar
A FM-CW radar system comprises a frequency modulated continuous wave digital generator that produces both in-phase (I) and quadrature-phase (Q) outputs to orthogonally oriented transmitter...
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7164382 |
On-vehicle radar system
An on-vehicle radar system capable of detecting a range error from range data based on an echo from a target ( 6 ). Range error is detected when amplitudes of beat frequency components in two...
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7151484 |
Pulse compression processor
A pulse compression processor 20 compressing a modulated pulse signal correlately received by a receiver, includes a coefficient calculator 30 calculating a set of filtering coefficients for...
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7148840 |
Radar apparatus, radar apparatus controlling method
A radar apparatus comprises: a transmitter unit having a high-frequency oscillating unit whose oscillation frequency is variable, and a pulse amplitude modulating unit for amplitude-modulating a...
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7145502 |
Distance measurement method and device
A distance can be measured with high resolution. A frequency controller ( 7 ) controls a voltage control oscillator ( 2 ) so as to change a signal source frequency f in a range containing two...
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7142153 |
Short pulse/stepped frequency radar system
A unique hardware architecture that combines short pulse, stepped frequency and centerline processing. The inventive architecture implements a radar system having a transmitter for transmitting...
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7138939 |
Radar
A radar has a transmission section, a reception section that receives a reflected wave of the transmission wave, a transmission switch section, a delay section that delays a predetermined timing, a...
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7132976 |
Automotive radar
An automotive radar which can process signals at high speed to detect a target in a wide angle range is provided. The automotive radar comprises a transmitting antenna which emits an...
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7123183 |
FM-CW radar apparatus
An FM-CW radar apparatus capable of detecting a stationary object, in particular, an overbridge, located above the road ahead in a simple manner uses a traveling wave antenna as a transmitting...
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7095363 |
Pulse radar apparatus
A pulse radar apparatus uses different frequencies, for example, frequencies one of which is a multiple or a submultiple of the other for a signal which becomes a reference of a control pulse for...
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7079071 |
Radar apparatus
A radar apparatus includes: a modulation signal generating circuit that generates a modulation signal; a carrier wave generating circuit that generates a carrier wave; a modulation circuit that...
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7061424 |
Radar device
The present invention provides a radar device mounted on a moving object that moves along a continuous plane, having (1) a transceiver part for transmitting a signal having a main lobe in the...
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7057550 |
System and method for calibrating a vehicular traffic surveillance Doppler radar
A system and method for calibrating a vehicular traffic surveillance Doppler radar are disclosed. In one embodiment, a modulation circuit portion generates double-modulated FM signals. An antenna...
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7053816 |
On-vehicle radar system
An on-vehicle radar system capable of detecting a range error from range data based on an echo from a target ( 6 ). Range error is detected when amplitudes of beat frequency components in two...
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7034743 |
Radar
An FM-CW radar detects at least one of the relative distance and the relative speed of a predetermined object based on the frequencies of projection portions observed in the frequency spectrums of...
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7026976 |
Radar apparatus having function of estimating target's width
In a radar apparatus, when the width of a target cannot be determined, the width is estimated in such a manner as not to erroneously identify the lane in which the target is traveling. Denoting the...
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7023378 |
Self-calibrating wideband phase continuous synthesizer and associated methods
The synthesizer and method provide a relatively wideband swept frequency signal and include generating a first swept frequency signal with a first generator, and successively switching between...
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7023356 |
System and method for monitoring individuals and objects associated with wireless identification tags
A monitoring system includes a wireless identification tag and interrogator. The tag includes memory that stores information associated with a person or object associated with the wireless...
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7019681 |
System and method for verifying the radar signature of an aircraft
The invention is a system and method for verifying the radar signature of a pair of aircraft. The system includes a radar transmitter and receivers located in the leading and trailing edge of the...
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7009552 |
Radar device and method of measuring distance and reflecting factor
A radar device for measuring distance within short range is provided. The radar device has a first wave-detecting circuit for multiplying radio wave voltage being transmitted from a transmitting...
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7006033 |
Pulse radar apparatus
An embodiment comprises a unit generating a control pulse signal by delaying a basic signal in generating a transmission pulse, and a unit performing a gate operation on a received signal using the...
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