Abstract: An inductive scanner, especially an inductive shoe and/or foot scanner, is provided. Said inductive scanner comprises at least three inductive transceiver elements for inductively transmitting and/or receiving to form corresponding magnetic fields, and a control unit connected to said at least three inductive transceiver elements. In this context, the at least three inductive transceiver elements are arranged at different distance from one another such that the corresponding magnetic fields between at least one or each respective pair of the at least three inductive transceiver elements have different field distributions in three-dimensional space.

Abstract: A shoe and/or foot scanner combining electromagnetic wave and inductive scanning capabilities is provided. Said shoe and/or foot scanner comprises at least one electromagnetic wave sensor, at least one inductive sensor, and a control unit. In this context, the at least one electromagnetic wave sensor and the at least one inductive sensor are arranged such that the at least one electromagnetic wave sensor and the at least one inductive sensor have at least one overlapping detection volume and/or area. In addition to this, the control unit is configured to evaluate the corresponding sensor measurements from the at least one electromagnetic wave sensor and the at least one inductive sensor for at least a part or each of the at least one overlapping detection volume and/or area to determine an overall threat probability.

Abstract: A calibration device for a measurement device, especially a vector network analyzer, is provided. The calibration device includes at least one connection port for connecting the calibration device to the measurement device, especially the vector network analyzer, at least one passive calibration standard, at least one active calibration standard, and a switching unit configured to connect the at least one connection port alternatively to one of the at least one passive calibration standard and the at least one active calibration standard. The active calibration standard includes a signal measurement unit configured to measure an RF signal fed to the active calibration standard via the at least one connection port and the switching unit in magnitude and/or phase. Alternatively, the active calibration standard includes a signal generation unit configured to generate and output a reference signal to the at least one connection port via the switching unit.

Abstract: An over the air, OTA, test chamber for testing at least one device under test, DUT, provided within the OTA test chamber which includes a thermal bubble component adapted to receive the device under test, DUT, comprising an air inlet adapted to supply air into the thermal bubble component, an air outlet adapted to remove air from the thermal bubble component and an airstream diffusor provided at the air inlet and adapted to diffuse an airstream supplied by the air inlet within the thermal bubble component.

Abstract: A modulated RF signals generating system for controlling or reading-out a multiple-state system, such as a quantum computing architecture or a multiple-input multiple-output architecture, is provided. The system includes a baseband signal generator having a baseband signal generator output(s), a reference frequency source being in unidirectional or bidirectional communication with the baseband signal generator, a multitone source including multitone source output(s) and being in unidirectional or bidirectional communication with the reference frequency source to lock the corresponding phase between the baseband signal generator and the multitone source, and mixer(s) including a first mixer input, a second mixer input(s) and a mixer output. The corresponding one of the baseband signal generator output(s) is connected to the first mixer input of the respective one of the mixer(s).

Abstract: A signal processing circuit includes an input interface and an analysis circuit. The input interface is configured to receive a measurement signal and a reference signal. The input interface further is configured to forward the measurement signal and the reference signal to the analysis circuit. The measurement signal and the reference signal include a symbol sequence, respectively. The analysis circuit is configured to synchronize the measurement signal with the reference signal. The analysis circuit is configured to determine error vectors based on the synchronized measurement signal and reference signal. The analysis circuit further is configured to determine symbol points of the symbol sequence and decision boundaries for the symbol points. The analysis circuit further is configured to determine whether the determined error vectors exceed the decision boundaries determined. Further, a measurement instrument and a method of determining a symbol error rate of a measurement signal are described.

Abstract: A signal processing circuit for a measurement instrument is described. The signal processing circuit includes an analysis circuit, a measurement input, and at least two parallel measurement channels. The parallel measurement channels are configured to process the input signal, thereby generating first and second complex-valued measurement signals. The analysis circuit is configured to determine first and second error quantities associated with the first and second complex-valued measurement signals, respectively. The analysis circuit is configured to determine a complex-valued average signal corresponding to a combined average of the first and second complex-valued measurement signals. The analysis circuit is configured to determine a combined error quantity based on the complex-valued average signal. The analysis circuit is configured to determine a comparison quantity based on the combined error quantity as well as based on the first error quantity and/or the second error quantity.

Abstract: A method (and corresponding system, computer program and storage device) for testing a device under test, DUT, comprising: generating or receiving, by a component of the DUT, a bus signal, wherein the bus signal comprises a first data signal having a plurality of first phase angles or a second data signal having a plurality of second phase angles; averaging the phase angles for a predetermined bus signal length; comparing the averaged phase angle with a preset phase range; and identifying the first data signal or the second data signal in the bus signal based on the comparison.

Abstract: A method of testing user equipment for non-terrestrial networks is described. The method includes, for example, the steps of: providing GNSS data and ephemeris data by a test system, wherein the GNSS data is associated with a position of a user equipment (UE) device of a non-terrestrial network, and wherein the ephemeris data is associated with a position of a satellite node of the non-terrestrial network; transmitting the GNSS data and the ephemeris data to the UE device; determining a timing advance and/or a Doppler pre-compensation shift by the UE device based on the GNSS data and the ephemeris data; generating an uplink signal by the UE device based on the determined timing advance and/or the determined Doppler pre-compensation shift; and analyzing the uplink signal by the test system in order to assess a performance of the UE device. Further, a test system for testing user equipment for non-terrestrial networks is described.

Abstract: A measurement system for determining a noise figure of a device under test is described. The measurement system determines a first total error power based on the output signal by a first noise canceling technique, wherein the first total error power includes systematic errors originating in the device under test and in the measurement system. The measurement system determines a second total error power based on the output signal by a different, second noise canceling technique. The second total error power includes systematic errors originating in the measurement system. The second total error power further includes noise originating in the device under test and in the measurement system outside of the measurement instrument. The measurement system is configured to subtract the first total error power from the second total error power, thereby obtaining an external noise power.

Abstract: A method for configuring a mobile communication tester is described. The method comprises the steps of: providing a mobile communication tester with an electronic circuit configured for testing a device under test; receiving, by the electronic circuit, at least one configuration message that is formatted at least partially in ASN.1; processing, by the electronic circuit, the at least one configuration message formatted in ASN.1; and deriving, by the electronic circuit, a configuration setting of the mobile communication tester at least partly from the at least one configuration message received.

Abstract: Disclosed is a method of manufacturing a reflector dish for a compact antenna test range, CATR, and a reflector dish being obtainable by the method. The method comprises providing a first workpiece having an axis of symmetry, and an unprocessed peripheral edge with respect to the axis of symmetry fitting within a maximum milling area of a milling device. The method further comprises milling a concave parabolic frontal surface into the first workpiece in accordance with the axis of symmetry. The method further comprises milling a peripheral surface into the first workpiece with respect to the axis of symmetry. The method further comprises providing four second workpieces. The method further comprises milling a frontal surface into the respective second workpiece. The method further comprises milling a peripheral surface into the respective second workpiece.

Abstract: The invention relates to a method and a system for determining test signals for electromagnetic susceptibility, EMS, testing of a device-under-test, DUT. The method comprises the steps of: receiving at least one DUT parameter which defines a property of the DUT; receiving at least one environmental parameter which defines an electromagnetic environment, EME, in which the DUT is to be used; receiving information on an EM emission behavior, in particular an emission spectrum, of the DUT; and inputting the at least one DUT parameter, the at least one environmental parameter and the information on the EM emission behavior to a machine learning, ML, or artificial intelligence, AI, model. The ML or AI model is configured to determine one or more test signals for EMS testing of the DUT based on the at least one DUT parameter, the at least one environmental parameter and the information on the EM emission behavior.

Abstract: The present disclosure provides a method for processing acquired RF spectrum data that represents an RF signal, the method comprising acquiring at least one graphical representation of the RF spectrum data, and extracting at least one signal property of the RF signal from the graphical representation. Further, the present disclosure provides a respective signal processing device, and a respective measurement application device.

Abstract: A method is disclosed for tailoring an activation state of a protocol data unit session between a test network and at least one user equipment. A test system for testing a wireless connection between at least one user equipment and a test network is also provided. The user equipment is registered with the test network. The protocol data unit session is established between the test network and the user equipment. The protocol data unit session between the test network and the user equipment is resumed after at least one radio resource control connection of the protocol data unit session between the test network and the user equipment was released once a release condition was met. The resuming is based on a resuming signal provided by a control device coupled to the test network such that an activation state of the protocol data unit session is modifiable.

Abstract: The present disclosure generally relates to a method and a test system for establishing an over-the-air communication connection between a device under test and a mobile communication tester. A simulated network is provided by using the mobile communication tester. The device under test is activated and a search for the simulated network to connect to is initiated by the device under test. Configuration data of the simulated network are submitted to the device under test by using the mobile communication tester. A communication connection is established between the device under test and the simulated network based on the configuration data submitted.

Abstract: An over-the-air (OTA) test system is described. The OTA test system includes an antenna positioner with at least one test antenna. The OTA test system further including a DUT positioner, wherein the DUT positioner is configured to hold a device under test in a measurement zone. The antenna positioner is configured to rotate the at least one test antenna around the measurement zone by adapting an elevation angle of the test antenna. The DUT positioner is configured to tilt the device under test by a predefined angle with respect to a height direction of the OTA test system, thereby adapting an elevation angle of the device under test. Further, an OTA test method is described.

Abstract: A signal synthesizer circuit includes a clock source, a direct digital synthesizer (DDS) circuit, signal paths, and an output. The clock source generates or receives a clock signal having a predefined frequency. The DDS circuit generates a DDS signal. A first signal path is connected to the DDS circuit to receive the DDS signal and includes a multiplier circuit that multiplies a frequency of the DDS signal by a multiplication factor, obtaining a frequency-multiplied DDS signal. A second signal path is connected to the clock source to receive the clock signal and includes a mixer circuit that receives the clock signal and the frequency-multiplied DDS signal. The mixer circuit mixes the clock signal with the frequency-multiplied DDS signal, obtaining a mixed DDS signal. A frequency of the mixed DDS signal corresponds to the sum of frequencies of the clock signal and the frequency-multiplied DDS signal.

Abstract: The present disclosure generally relates to a method and a measurement system for characterizing a reconfigurable intelligent surface of a device under test. An incident signal is repeatedly transmitted onto the reconfigurable intelligent surface at an incident angle with respect to the reconfigurable intelligent surface by using a feed antenna. Reflected signals reflected by the reconfigurable intelligent surface are captured by using at least one probe antenna. The reflected signals are captured at different angles of reflection such that a three-dimensional reflection pattern is obtained. A reflected total radiated power for the reconfigurable intelligent surface is determined based on the three-dimensional reflection pattern by using a determination circuit.

Abstract: A measurement device is provided. The measurement device comprises a display configured to display a measurement trace, an analyzing unit configured to analyze a subset of measurement data represented by the measurement trace on the basis of at least one target measurement parameter, and a post-processing unit configured to search for the at least one target measurement parameter.