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7619558 |
Clock pulse control device of a microwave pulse radar
The invention relates to a clock pulse control circuit for generating a transmit clock pulse (ts) and a sampling clock pulse (ta; tb; tc), wherein the clock pulse control circuit comprises a first...
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7598903 |
Sensor for measuring distance and method for measuring distance using the sensor
A distance measurement sensor and a distance measurement method using the same are disclosed. The distance measurement sensor can use all of a pulse method and a Continuous Wave (CW) method, can...
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7586433 |
Dual port memory trigger system for a ground penetrating radar
Systems and methods for generating trigger signals in a ground penetrating radar. In one embodiment, sequence data is generated based on a desired triggering sequence for an array of antennas. The...
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7576683 |
Methods and systems for reducing interference caused by antenna leakage signals
In one aspect, a method of radar altimeter operation including a time dependent gain control is described. The method comprises triggering a Sensitivity Time Control (STC) gain control signal at a...
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7561099 |
Radar device
To provide a radar device that is capable of performing both of long-distance detection performance and short-distance wide-angle monitor in a DBF system radar, there is provided a radar device of...
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7518548 |
Method for determining quality of measurement in a radar level gauge system
A method for determining a quality of measurement in a radar level gauge system arranged to measure a filling level of a content contained in a tank, comprising the steps of providing an antenna...
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7420503 |
Small-sized low-power dissipation short-range radar that can arbitrarily change delay time between transmission and reception with high time resolution and method of controlling the same
In a configuration according to a short-range radar of the present invention and a method of controlling the same, the timing at which a variable-period pulse output from a variable-period pulse...
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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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RE40128 |
Stabilization in a radar level gauge
A radar gauge adapted to sense fluid level in a tank and including a radar gauge circuit in which radar transmission and level sampling are controlled by a transmit frequency and a sample frequency...
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7265598 |
Narrow ultra wideband pulse generator
A circuitry for generating a narrow impulse including an input device coupled to a matching circuitry that is coupled to a step recovery diode (SRD). The input device is configured to receive a...
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7248205 |
Radar apparatus
A transmitter emits into an intended search space a radar wave having a predetermined frequency pulse-modulated by a trigger pulse of a predetermined width. A receiver receives a reflected wave of...
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7239262 |
Delivery of quasi-periodic pulses of EM energy utilizing the principle of beating-wave amplification
The present invention is related a method and system for irradiating a target location or material with high-amplitude narrow pulses of electromagnetic (EM) energy at a periodic or quasi-periodic...
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7230565 |
Radar
A radar can detect target azimuths located outside and adjacent to a scanning angular range of a beam by determining changes in received signal strength (a signal-strength profile) in the azimuthal...
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7136753 |
Object recognition apparatus for vehicle, inter-vehicle control apparatus, and distance measurement apparatus
In an object recognition apparatus for a vehicle which uses intensities of reflected waves from reflecting objects to make a recognition on whether a reflecting object is a vehicle or a...
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7109915 |
Radar apparatus
In a radar apparatus for automobiles for transmitting a radio wave, receiving a radio wave reflected from an object and measuring a rate of the object, a digital signal processor has at least two...
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7098843 |
Automatic sensitivity control for radar level gauges
A radar level gauge system for determining the filling level of a filling material in a tank is disclosed. The system comprises an antenna device for emitting measuring signals towards the surface...
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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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7095362 |
Radar measurement device, especially for a motor vehicle, and method for operating a radar measurement device
The present invention relates to a radar measuring device which, with a simple design, ensures reliable distance determination even when a mixed signal is zero, and a method for operating a radar...
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7023331 |
Peripheral monitor for monitoring periphery of vehicle
The invention solves a problem of fluctuation in performance in the conventional peripheral monitor for monitoring periphery of a vehicle that measures a distance to other vehicle or any other...
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6989781 |
Short-range radar system with variable pulse duration
A short-range radar system includes short-range radar sensor means and means ( 41 ) for HF-impulse generator for the sensor means. The means for HF-impulse generation are embodied for emitting...
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6879281 |
Pulse radar detection system
A radar based sensor detection system comprises a microwave source operative to provide a continuous wave signal at an output. A pulse-former is coupled to the output of the source and is operative...
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6831594 |
Guided waver radar level transmitter
A guided wave radar measurement instrument comprises a probe defining a guided wave radar transmission line. A pulse circuit is connected to the probe for generating a very fast stream of pulses on...
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6798373 |
FM-CW radar system
An FM-CW radar system comprises a modulating signal generating means for changing a modulating signal to be applied to a FM-CW wave, a calculating means for calculating a distance or relative...
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6741203 |
Adaptive radar thresholds system and method
A system and method for adapting weather radar gain is disclosed. The system and method includes estimating a freezing altitude. The system and method also includes determining, based on the...
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6639543 |
Sensor front-end for vehicle closing velocity sensor
A sensor front end is disclosed that is able to discriminate objects based on their range from the sensor. The sensor includes an antenna that transmits a sensor signal and, if an object is present...
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6587071 |
Device for detecting objects in the area surrounding a vehicle
A device which can accurately detect even objects in very close proximity to a vehicle and at the same time can reliably detect more distant objects has means (MM) that can execute a selection of...
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6483453 |
Method for reducing transmit power for traffic alert and collision avoidance systems and airborne collision avoidance systems
The present invention provides a method for efficient use of the transmit power of a Traffic Alert Collision Avoidance System (TCAS) that allows enhanced surveillance range and limits radio...
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6420995 |
Radar and IFF system
A silent radar system which detects a target and its position without the countermeasure operator located at the target being able to detect the presence of the radar. The silent radar operates by...
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6204801 |
System and method for obtaining precise missile range information for semiactive missile systems
A system (10) for determining the range between a missile (14) and a target (18) adapted for use with a semi-active missile system. The system (10) includes a first circuit (12) for generating a...
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6097331 |
FM-CW radar system for measuring distance to and relative speed of target
An FM-CW radar apparatus is provided which may be employed in automotive anti-collision or radar cruise control systems. The radar apparatus transmits as a radar wave a high-frequency signal which...
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6094159 |
Process for measuring distance with adaptive amplification
A process for determining the distance between a distance sensor and an object, wherein an analog input signal is directed to a transmitter of the distance sensor. The transmitter emits a wave...
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6008751 |
Radar apparatus installed on vehicle for managing reflector information
A radar apparatus installed on a vehicle includes a transmission section, a reception section and a processing section. The transmission section includes at least a transmission antenna, and emits...
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5896102 |
Swept range gate radar system for detection of nearby objects
A cost-effective ultra-wideband radar system capable of locating nearby buried objects such as reinforcing steel rods, pipes, and other objects buried in concrete, soil, behind walls, or in the...
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5854603 |
Ultra-wideband swept range gate radar system with variable transmitter delay
A cost-effective ultra-wideband band radar system capable of locating nearby buried objects such as reinforcing steel rods, pipes, and other objects buried in concrete, soil, behind walls, or in...
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5717399 |
Radar device for vehicle use
A radar device for vehicle use which can be manufactured inexpensively while enhancing its monitoring function for an adjacent object as well as a remote object. The radar device includes a radar...
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5652589 |
FM-CW multibeam radar apparatus
An FM-CW multibeam radar apparatus includes a plurality of antennas designed to serve both for beam transmission and receiving are arranged in such a manner that radiated beams overlap in part with...
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5617098 |
Multichannel radar system for motor vehicles
A multichannel radar system for use on a motor vehicle has a plurality of transmission and reception channels each composed of an AM or FM signal generator for generating an AM or FM signal...
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5541605 |
Swept range gate short range radar system
A cost-effective ultra-wideband band radar system capable of locating nearby buried objects such as reinforcing steel rods, pipes, and other objects buried in concrete, soil, behind walls, or in...
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5387917 |
Radar fuze
A method and apparatus for determining an altitude for a radar fuze. The method includes the steps of receiving a return signal and transmitting a transmitted signal. The return signal and the...
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5175553 |
Telemetric process for measuring short distances
A telemetric process for measuring short distances comprises emitting an electromagnetic signal modulated by a pseudo-random sequence having a number (n) of bits delivered at a clock frequency...
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5148175 |
High resolution variable range gate generator with programmable timing
Range gate delay is effected by serially connected coarse and fine programmable delay lines. The radar transmit trigger pulse is propagated through the programmable delay lines to provide a delayed...
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5130711 |
Subsurface target identification radar
Subsurface target identification radar includes an antenna array, a rotary encoder, a radar controller, a polarization switching circuit, and transmitter and receiver circuits. The antenna array is...
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5087918 |
FMCW/2FD implementation for vehicle near obstacle detection system
A vehicle near obstacle detection system includes a plurality of radio frequency heads that can transmit and receive both frequency-modulated, continuous wave and two-frequency Doppler radar...
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5072223 |
Radar system for measuring the nearest distance to an object
This radar system for measuring the nearest distance "h" comprises transmitting means (9, 7, 5) for transmitting towards an object a frequency-modulated wave, receiving means (15, 17) for receiving...
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4945360 |
Radar altimeter
The present radar altimeter operates in accordance with the frequency modulated continuous wave principle in the C-band. The altimeter is constructed with microminiaturized integrated circuits and...
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4893125 |
Vehicle diplex doppler near-obstacle detection system
A vehicle near-obstacle detector in the form of a diplex Doppler radar system provides range information between a vehicle and an object based on the phase shift between a pair of Doppler signals...
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4739330 |
Frequency modulation radio altimeter
A frequency modulation radio altimeter has a directional antenna which is connected to a transmission-reception switch controlled by a signal generator. The generator delivers periodic signals...
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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...
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3778160 |
ELECTRONIC DISTANCE MEASURING DEVICE AND METHOD
An electronic distance measuring device and method for determining the distance between two locations utilizing light or other electromagnetic wave energy. The wave energy is transmitted from one...
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3680092 |
RANGING SYSTEM USING PHASE DETECTION
A modulated alternating waveform produced by an oscillator is transmitted to a target and a receiver receives reflections of the waveform from the target. The waveform of the modulation also is...
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