Abstract: A phase-shifted sampling circuit is described. The phase-shifted sampling circuit includes a primary sampler circuit, an ADC circuit, and an equalization circuit. The primary sampler circuit includes an analog signal input, a first signal path, and a second signal path. The equalization circuit includes a primary sampler equalizer sub-circuit. The primary sampler equalizer sub-circuit is configured to compensate a mismatch between a transfer function associated with the first signal path and a transfer function associated with the second signal path. Further, a method of determining filter coefficients of an equalization circuit of a phase-shifted sampling circuit is described.

Abstract: A signal processing device is described, with a signal input for receiving an input signal, a first trigger unit generating a trigger signal based upon a first trigger event in the input signal and an acquisition memory for acquiring the input signal at least based upon the trigger signal so as to provide an acquired signal. The signal processing device also comprises a second trigger unit connected to the acquisition memory. The second trigger unit is adapted to process the acquired signal according to a second trigger. The second trigger unit is adapted as a zone trigger unit applying a zone trigger. Further, a method of applying a zone trigger is described.

Abstract: An RCS reduction surface for reducing a radar cross section of an object is described. The RCS reduction surface comprises at least one absorber portion, wherein the absorber portion is configured to absorb radar waves. The RCS reduction surface further comprises at least one reflecting portion, wherein the reflecting portion is configured to reflect radar waves. A first plane being associated with a top surface of the absorber portion and a second plane being associated with a top surface of the reflecting portion are spaced from each other by a predefined distance. The predefined distance is configured such that radar waves with a predefined wavelength range that are reflected at the absorber portion and at the surface of the reflecting portion interfere destructively with each other. Further, an RCS reduction member and a radar test system are described.

Abstract: A test system for testing a device under test is provided including at least one feed antenna, a shielded chamber, and at least a first reflector and a second reflector. The test system is a compact antenna test range. The first reflector and the second reflector are arranged inside the shielded chamber. The first reflector is configured and arranged such that it redirects outgoing test signals emitted by the at least one feed antenna towards the second reflector and incoming test signals coming from the second reflector towards the at least one feed antenna. The device under test is arranged outside the shielded chamber. The shielded chamber includes at least a first interface associated with the device under test. The first interface and the feed antenna are located at different sides of the shielded chamber, which are perpendicular to each other.

Abstract: An external frontend device is described. The external frontend device includes an integrated synthesizer circuit, a reference signal input, a receiver channel, a transmitter channel, and at least one mixer circuit. The reference signal input is configured to receive a low-frequency reference signal. The reference signal input is configured to forward the received low-frequency reference signal to the integrated synthesizer circuit. The integrated synthesizer circuit is configured to generate a local oscillator (LO) signal based on the low-frequency reference signal. The at least one mixer circuit is associated with the receiver channel and/or with the transmitter channel. The at least one mixer circuit is configured to mix the LO signal with a radio frequency (RF) signal processed by the receiver channel and/or with an intermediate frequency (IF) signal processed by the transmitter channel, thereby obtaining an IF output signal and/or an RF output signal, respectively.

Abstract: A sampling assembly is described. The sampling assembly comprises an input, a light source unit, at least one deflector unit, and a light receiver. The input is configured to receive an electrical input signal. The light source unit is configured to generate and output a light beam in the direction of the deflector unit. The light source unit is configured to adapt an intensity of the light beam based on an amplitude of the input signal. The deflector unit is configured to obtain a deflection command signal. The deflector unit further is configured to deflect the light beam into at least one spatial direction based on the deflection command signal. The light receiver comprises at least two photosensitive pixels. The light receiver is configured to receive the light beam via at least one of the at least two photosensitive pixels, and the light receiver is configured to convert received light into an electrical output signal. Further, a testing instrument is described.

Abstract: A method of compressing digital signal data obtained from a signal is described. The method includes: receiving digital signal data associated with a signal and/or generating digital signal data based on a signal; transforming the digital signal data into a transform domain, thereby generating transformed digital signal data; determining at least one characteristic parameter based on the transformed digital signal data by an artificial intelligence circuit; detecting and/or classifying at least one wanted signal portion based on the at least one characteristic parameter by the artificial intelligence circuit; and storing only a subset of the digital signal data that is associated with the at least one wanted signal portion. Further, a signal compressor circuit for compressing digital signal data obtained from a signal and a computer program are described.

Abstract: A system for correcting phase noise and/or drift includes an optical signal module, at least one optical transport module, at least one sampling module, an analysis circuit, and a measurement instrument. The optical signal module is capable of outputting a modulated optical signal. The at least one optical signal transport module includes a beam splitter capable of separating at least backward travelling waves based on polarization. The at least one optical signal transport module further includes a partially reflecting reflector capable of creating a backward travelling wave, the partially reflecting reflector being located after the polarization rotator. The at least one sampling module is configured to receive and sample the backward travelling wave created by the partially reflecting reflector and forwarded to the at least one sampling module by the beam splitter, thereby obtaining an electric correction signal.

Abstract: A measurement device is provided. Said measurement device comprises a plurality of ports for receiving and/or transmitting radio frequency signals, a plurality of measurement units with one measurement unit for each of the plurality of ports, each measurement unit being configured to measure the corresponding forward and/or reverse radio frequency signal, and a subset of additional measurement units, preferably one additional measurement unit, configured to be connected to a subset, preferably one, of the ports in addition to or instead of the respective at least one of the plurality of measurement units.

Abstract: The present disclosure provides a method for manufacturing a measurement probe, the method comprising cutting a carrier substrate to form a probe contour, the probe contour comprising at least one probe tip and a probe body, and metallizing the surface of the at least one probe tip of the probe contour. Further, the present disclosure provides a respective measurement probe.

Abstract: Disclosed is a measurement system for analyzing RF signals, comprising an optically transparent enclosure including an optically pumpable medium being exposed to an electromagnetic field of the RF signal to be analyzed; an optical pump for penetrating the medium with intensity-modulated light, the intensity defining an absorption sensitivity of the medium; a field generator for generating an electric and/or magnetic field within the enclosure, a strength of the generated field defining an absorption frequency of the medium; a controller for controlling the absorption sensitivity of the medium in dependence of the absorption frequency of the medium; and a detector for detecting an optical property of the penetrating light passing through the medium. This facilitates fine-tunable and frequency-dependent control of sensitivity and dynamic range for spectral analysis of RF signals.

Abstract: A radar target simulator front end, configured to simulate at least one radar target for testing a radar device under test is provided. The radar target simulator front end comprises at least two antenna units, arranged along a first angle under investigation. The at least two antenna units are configured to be selectively activated and deactivated. Whereby each antenna unit of the at least two antenna units generates a simulated radar target along the first angle under investigation, when activated.

Abstract: A transmission device for transmitting monitoring information is described, wherein the transmission device is configured to gather the monitoring information of a broadcasting and/or streaming unit that is configured to generate a transport stream for broadcasting and/or streaming. The transmission device is further configured to transmit the monitoring information gathered to a cloud unit via a secure connection. Further, a system and a method for transmitting monitoring information are described.

Abstract: A system is provided for distributed execution of a sequence processing chain. The system comprises an interface adapted to set a measurement sequence for a plurality of measurement sites, each comprising a sequence runner. The system further comprises a sequencer repository adapted to be accessed locally from the plurality of measurement sites. Moreover, the system comprises a sequence state manager adapted to receive measurement sequence states from at least one sequence runner and further adapted to distribute the measurement sequence states to other sequence runners via a network. In this context, the measurement sequence states are associated with data and/or results through the sequence processing chain.

Abstract: The invention relates to a versatile generation of radar signals for simulating a radar scenario. Radar signals may be generated by multiple RF output paths having different frequency ranges. Pulse descriptive words of radar signal simulation data are split into multiple groups according to the frequency or frequency range of the RF output paths and the split data are provided to the related RF output path.

Abstract: The present invention relates to a method for testing a device under test. A component of the device under test generates or receives a bus signal, wherein the bus signal comprises a first data signal or a second data signal, and wherein an amplitude of the first data signal is different from an amplitude of the second data signal. A measurement instrument measures an amplitude of the bus signal. Further, it is determined whether the bus signal comprises the first data signal or the second data signal, based on the measured amplitude of the bus signal.

Abstract: A system for testing a radar under test is provided. The system comprises an antenna array with a plurality of antenna elements, a plurality of transceivers downstream to the plurality of antenna elements and a processing unit. In this context, the processing unit is configured to communicate the radar under test by transmitting and/or receiving a two dimensional test pattern and to compare the two dimensional test pattern with a reference pattern.

Abstract: Embodiments of the present disclosure relate to a method of transmitting data by radio signals from at least one first entity, wherein the method comprises the steps of: providing data to be transmitted by the first entity which establishes at least one data source; providing information concerning a data transmission rate for the first entity by a data transmission rate manager; adapting the data transmission rate dynamically based on the information of the data transmission rate manager by an encoder of the first entity; and encoding the data to be transmitted by the encoder. Further, a system for transmitting data by radio signals is described.

Abstract: A measurement system for characterizing a device under test is described. The measurement system includes a signal source, an analysis module, and a directional element that is connected to each of the device under test, the signal source, and the analysis module. The signal source is configured to generate a digital instruction signal or an analog stimulus signal for the device under test. In the case of generating the analog stimulus signal, the directional element is configured to forward the analog stimulus signal from the signal source to the device under test, wherein the device under test includes circuitry configured to generate a digital output signal based on the analog stimulus signal received.

Abstract: The invention regards a radar calibration system and a method for moving a radar calibration target along the predefined movement path. The system comprises a radar calibration target, having a reflector of a known radar cross section, the reflector having a discontinuous surface mounted on and at least partially surrounding a drive unit for three dimensionally moving the radar calibration target based on control signals. The calibration target further has a localisation unit for determining a position of the radar calibration target. A control unit is configured to generate the control signals based on position information received from the localisation unit and a desired movement path and the movement of the radar calibration target is then executed by the drive unit based on the control signals.