Vayyar Imaging Ltd.

Other

Damian Hoffman

Yuval Shamuel Lomnitz

Jonathan Rosenfeld

Raviv Melamed

Ronen Tur

Shachar Shayovitz

Mark Popov

Naftali Chayat

Tom Harel

Orel Ron

Harel Golombek

Alexei Khazan

Rohi Halimi

Ilan Hayat

A system for generating a three dimension (3D) imaging of an object, the system comprising: an electromagnetic transducer array such as an RF (radio-frequency) antenna array surrounding the object said array comprising: a plurality of electromagnetic transducers; a transmitter unit for applying RF signals to said electromagnetic transducer array; and a receiver unit for receiving a plurality of RF signals affected by said object from said electromagnetic transducers array; a Radio Frequency Signals Measurement Unit (RFSMU) configured to receive and measure said plurality of plurality of affected RF signals and provide RF data of the object; and at least one processing unit, configured to process said RF data to identify the dielectric properties of said object and construct a 3D image of said object.

System and methods for three dimensional modeling of an object using a radio frequency device

The methods and device disclosed herein provide an array such as a Radio Frequency (FR) antenna array for measuring the array movement or displacement of the array relative to a reference location. In some cases the array may be attached to or in communication with the device. The array comprises at least two transducers (e.g. RF antennas), wherein at least one of the at least two transducers is configured to transmit a signal towards the object, and at least one transceiver attached to said at least two transducers, the at least one transceiver is configured to repetitively transmit at least one signal toward an object and receive a plurality of signals affected or reflected while the array is moved in proximity to the object/medium or scene; and at least one processor unit, configured to: process the affected signals to yield a plurality of signal measurements and compare said signal measurements obtained at different locations over time of said second object and calculate a movement of the object relative to a reference location.

System, device and methods for localization and orientation of a radio frequency antenna array

There are provided methods and systems configured to perform calibration of antenna array systems, for example during production, avoiding the use of external setups or external measurements. The method comprising: (i) measuring the delay of a dedicated calibration transmission line for each SUT, for example during production, using internal built-in system capabilities; (ii) comparing the measured delay to a known delay of an identical transmission line of a reference system; (iii) computing, based on this comparison, compensation values with respect to the reference system of delay (or phase), for all transmission lines of the SUT; (iv) calibrating the SUT using the computed compensation values for all transmission lines of the SUT.

Systems, devices and methods of transmission line calibration for antenna array systems

Antenna array systems and methods for simulating QPSK beam forming having binary phase shifter associated with each transmitting antenna configured to apply a phase shift of 180 degrees to a transmitted signal, and a controller configured to send instructions to the binary phase shifters. The receiving antennas are connected to a post processor comprising a memory operable to save received signals; and a processing unit operable to apply a 90 degree phase shift to selected received signals stored in the memory, and further operable to sum received signals stored in the memory. Optimized antenna array configurations are disclosed.

Systems and methods for shaping beams produced by antenna arrays

Systems and methods for providing wide field-of-view radar arrays. Quadrature phase-shift keying (QPSK) beam forming reduces side lobes by applying a phase shift to transmitted signals to selected transmitting antennas. Super-hemispherical radar coverage at high gain in both broadside and end-fire directions is provided by beam directing elements mounted to a printed circuit board.

Systems and methods for providing wide beam radar arrays

The methods and device disclosed herein provide electromagnetic (EM) portable device for imaging an object embedded within a medium, the device comprising an array, the array comprises at least two transducers, wherein at least one of the at least two transducers is configured to transmit a signal towards the object, and at least one transceiver attached to said at least two transducers, the at least one transceiver is configured to transmit at least one signal toward the object and receive a plurality of signals affected by the object while the array is moved in proximity to the medium; a data acquisition unit configured to receive and stare the plurality of affected signals; and a processor unit configured to provide one or more hypothetical parameter values aver a parameter space of said at least one object and provide a target model per hypothesis of said parameter values, and compute a score value per hypothesis as a function of the target model and the affected signals.

System, device and methods for imaging of objects using electromagnetic array

Systems, device and methods are provided for calibrating an antenna array comprising a plurality of antennas such as a plurality of transmit and receive antennas by utilizing an arena comprising one or more targets and a medium. The methods may comprise transmitting a plurality of Radio Frequency (RF) signals from at least one RF antenna of a plurality of RF antennas towards an arena, obtaining by the antenna array affected multiple RF signals from the arena, measuring the plurality of reflected RF signals by a Radio Frequency Signal Measurement Unit (RFSMU) and calculating a plurality of channel responses from said plurality of affected RF signals, providing by at least one processing unit a first model, which is configured to produce an expected electromagnetic (EM) channel responses of the antenna array and the arena and providing a second model, which comprises a relation between the first model and the antenna array calibration parameters and calculating the array calibration parameters to calibrate the antenna array.

System and methods for calibrating an antenna array using targets

A system and methods for RF (Radio Frequency) penetration imaging of one or more objects in a medium, the system including a generation and reception subsystem configured to generate and receive a plurality of RF signals, an RF antenna array including a plurality of antennas, the antennas being configured to transmit the RF signals towards the medium and receive a plurality of RF signals reflected from the medium, a data acquisition subsystem configured to receive and store the reflected RF signals, and a processor configured to estimate the distance between the surface of the target medium and the antenna array, the delay between the transmitted signals and the plurality of signals reflected from the object using a dedicated frequency sub-band of the received signals, the location of the antennas at each transmitting time, and determine whether there is an object within the medium.

System and method for radio frequency penetration imaging of an object

The methods and device disclosed herein provide an electromagnetic portable device for imaging an object embedded within a medium, the device including an array including at least two transducers, at least one of transducers for transmitting a signal towards the object, and a transceiver attached to the transducers, the transceiver for transmitting at least one signal toward the object and receiving signals affected by the object while the array is moved in proximity to the medium, a data acquisition unit for receiving and storing the affected signals; and a processor unit for providing one or more hypothetical parameter values over a parameter space of the object and provide a target model per hypothesis of the parameter values, and computing a score value per hypothesis as a function of the target model and the affected signals.

A system and methods for RF (Radio Frequency) penetration imaging of one or more objects in a medium, the system comprising: a generation and reception unit configured to generate and receive RF signals; an antenna array configured to transmit/receive the RF signals, the antenna array comprises a plurality of antennas: and a processor in communication with said antenna array, said processor is configured to analyze said RF signals and estimate the distance between the antenna array and the object, and in addition the relative orientation between the antenna array and the medium surface.

Growing community of inventors

Tzur Yitzhak, Israel

Damian Hoffman