A system comprises a multifunction radar receiver that in turn comprises processing circuitry and front-end circuitry. The front-end circuitry is operable to receive a millimeter wave burst via a plurality of antennas to generate a plurality received signals. The processing circuitry is operable to receive a first scene representation that is an aggregate of scene representations generated by one or more other radar receivers. The processing circuitry is operable to process the received signals to generate a second scene representation. The processing circuitry is operable to compare the first scene representation and the second scene representation and generate a difference scene based on the comparison. The processing circuitry is operable to generate a control signal based on the difference scene.

Apparatuses and methods for two-dimensional beam scanning for determining the position of an object in three-dimensional space are provided. An apparatus comprises a multiplicity of transmitters and receivers, which are arranged orthogonal to one another in an L-, U- or T-shaped structure. In one apparatus, the transmission signals are frequency and phase modulated in combination; and in another apparatus a single frequency carrier signal is subject to binary phase modulation. Here, this is a high-frequency encoding with a great code length, which is generated according to the pseudo-random number principle. The received signals, which include information from all transmitters, are decoded and consequently split into sub-signals, which can be assigned to a two-dimensional virtual array. According to the method of digital beamforming, the individual signals of the virtual antenna elements are formed into a plurality of highly focused beams in the horizontal and vertical direction.

A scanning method and system for measuring microwave vibration and deformation include simultaneously transmitting linear-frequency-modulation continuous waves by using a plurality of transmit antennas and enabling a main lobe of a synthesized beam to be directed towards a specific angle direction; receiving echoes by using a plurality of receive antennas to obtain vibration and deformation displacement values of a single target or multiple targets in an angle direction 1 of a cycle; through the phase shift control on the plurality of transmit antennas, extracting vibration and deformation displacement values of a single target or multiple targets in an angle direction 2 of the cycle based on the foregoing method; according to a measurement requirement, measuring and extracting vibration and deformation displacement values of a single target or multiple targets in another angle direction of the cycle; and obtaining vibration and deformation displacement time sequence values of all scanned points.

A three-dimensional imaging system includes an image intensification subsystem and an illumination subsystem that are both capable of operating with sinusoidal or pulsed waveforms in accordance with phase-measuring or flash modes of operation, respectfully, of the three-dimensional imaging system.

Methods and systems for the image processing of a three-dimensional imaging system include a multi-processor embodiment wherein the image output by an image sensor is divided amongst the several multi-processors for processing in order to improve the frame rate of the three-dimensional imaging system. Since the frame rate of a three-dimensional imaging system utilizing an image-intensifier is not limited by the amount of useful signal light available for imaging but is instead limited by image processing capacity, this technology provides for the use of multi-core or multi-processor image processing methods to improve the frame rate. Additionally, locating the image processor in close proximity to the image sensor allows for faster image data communication between the image sensor and image processor, which further improves the frame rate of the three-dimensional imaging system.

Methods and systems for generating illumination modulation signals, image intensifier gain modulation signals, and image sensor shutter control signals in a three-dimensional image-capturing system with one or more frequency synthesizers is disclosed. The illumination modulation signals, image intensifier gain modulation signals, and image sensor shutter signal are all coherent with one another, being derived from a common clock source. The use of frequency synthesizer concepts allow for the use of rapid modulation phase changes for homodyne operation, and further allow the use of rapid modulation frequency changes to mitigate the effects of inter-camera interference.

An apparatus is described that, according to an exemplary embodiment, has an RF oscillator for generating an RF oscillator signal at a first frequency and a frequency divider having a division ratio that is fixed during operation. The frequency divider is supplied with the RF oscillator signal and is configured to provide an oscillator signal at a second frequency. The apparatus further has a monitor circuit, to which the oscillator signal at the second frequency is supplied and which is configured to measure the second frequency and to provide at least one digital value that is dependent on the second frequency of the oscillator signal. The at least one digital value is provided on a test contact.

Some demonstrative aspects include radar apparatuses, devices, systems and methods. In one example, an apparatus may include a plurality of Transmit (Tx) chains to transmit radar Tx signals, and a plurality of Receive (Rx) chains to process radar Rx signals. For example, the radar Rx signals may be based on the radar Tx signals. The apparatus may be implemented, for example, as part of a radar device, for example, as part of a vehicle including the radar device. In other aspects, the apparatus may include any other additional or alternative elements and/or may be implemented as part of any other device.

A radar receiver stage on an integrated circuit and a method of processing a received radar signal, are provided. In one aspect, the receiver stage includes a low noise amplifier adapted to be connected to a receiver antenna structure, a first programmable gain amplifier, a first programmable bandpass filter, a second programmable gain amplifier, a second programmable bandpass filter, and a programmable low pass filter. One example method includes selecting a radar system configuration including a system type comprising an FMCW system or a Doppler system, programming at least a first programmable gain amplifier stage to a first gain, programming a first programmable bandpass filter stage to a first center frequency; and programming a programmable low pass filter to a first LPF gain.

A vehicle radar system (3, 3) and related method including a transceiver arrangement (7, 7) that is arranged to generate and transmit at least a first radar signal over a cycle (4a) and a following second radar signal over a cycle (4b). For the first radar signal cycle (4a), a corresponding first received signal (5a) and corresponding first received signal information (20a, 28a) is obtained, and for a following second radar signal cycle (4b), a corresponding second received signal (5b) and corresponding second received signal information (20b, 28b) is obtained. The vehicle radar system (3, 3) is arranged to calculate a difference between the first received signal information (20a, 28a) and the second received signal information (20b, 28b).