Abstract: An over-the-air test system for testing a device under test over-the-air is described. The over-the-air test system includes a reflector with a focal point, one center antenna and antenna elements. The center antenna is orientated towards the focal point of the reflector. The antenna elements are symmetrically located around the center antenna. An operational frequency range of the center antenna is different to an operational frequency range of the antenna elements. Further, a method of performing an over-the-air measurement of a device under test by using an over-the-air test system is described.

Abstract: The present disclosure generally relates to a method for generating a signal test specification, a data processing circuit, and a cloud system. The signal test specification is to be applied by a measurement device for testing a device under test. At least one first voltage requirement and at least one first timing requirement for a first power rail signal of the device under test to be tested are stored in a structured file format. At least one second voltage requirement and at least one second timing requirement for a second power rail signal of the device under test to be tested are stored in a structured file format. At least one relative constraint having a relation between at least two of voltage requirements and timing requirements is stored in a structured file format.

Abstract: A system for over-the-air testing of a device under test includes a measurement antenna, a reference antenna, a device under test capable of wirelessly transmitting and/or receiving complex radio frequency signals, and an analyzer. The analyzer has at least two ports, wherein the reference antenna is connected with a first port of the analyzer. The measurement antenna is connected with a second port of the analyzer. The analyzer is capable of determining a phase difference and a power ratio of radio frequency signals received via the measurement antenna and the reference antenna. The analyzer is capable of performing an IQ analysis on complex radio frequency signals. Further, a method of over-the-air testing of a device under test is disclosed.

Abstract: Magnetic core for a balun, balun with a magnetic core and method for manufacturing a magnetic core. In particular, a magnetic core is provided comprising multiple core elements, wherein the individual core elements are concentrically arranged. Furthermore, a heat sink is arranged between two adjacent core elements. By using multiple core elements for a magnetic core, the individual core elements can be adapted to different frequency ranges. In this way, the magnetic core may be used for a balun having a broad frequency range. Furthermore, thermal energy generated in the magnetic core can be dissipated by the heat sinks between the individual core elements. In this way, the power handling capability of the magnetic core can be increased.

Abstract: A jitter determination method for determining jitter associated with a packet-based data stream is described. The jitter determination method includes, for example, receiving at least two data packets associated with the packet-based data stream; selecting one data packet of the at least two data packets to be a reference data packet; determining initial jitter data based on the at least two data packets, wherein the initial jitter data comprises information on actual arrival times of the at least two data packets, respectively; determining expected arrival times for the at least two data packets, respectively; determining a time bias associated with the packet-based data stream based on at least the determined expected arrival time and based on at least the actual arrival time of the data packet not selected to be the reference data packet; and determining corrected jitter data based on the initial jitter data and based on the determined time bias.

Abstract: A redundant system for processing at least one signal is described wherein the redundant system has N+1 devices include N operational devices and one reserve device. The N operational devices and the reserve device are interconnected with each other. The redundant system includes a system control integrated within one of the devices of the redundant system. The redundant system further includes switches that are associated with the operational devices. In case of a failure of a respective operational device, the system control is configured to cause at least one of the devices to operate the switch associated with the respective operational device having the failure. Further, a method of operating a redundant system for processing at least one signal is described.

Abstract: A measurement system for measuring a device under test is described. The measurement system includes a control and analysis module composed of one or more circuits, a stimulus module composed of one or more circuits, and a measurement interface composed of ,for example, one or more circuits. The stimulus module is configured to generate an electric stimulus signal based on predefined measurement parameters. The measurement system is configured to be connected to a device under test via the measurement interface. The measurement interface is configured to forward the electric stimulus signal from the stimulus module to the device under test. The measurement interface further is configured to forward a response signal from the device under test to the control and analysis module, wherein the response signal corresponds to a response of the device under test to the stimulus signal. The control and analysis module is configured to analyze the response signal, thereby generating a set of analysis data.

Abstract: A verification apparatus for 5G New Radio applications includes a graphical user interface and a processing circuit. The graphical user interface is configured to receive a set of communication parameters from a user, the set of communication parameters being associated with communication parameters of a 5G communication channel. The set of communication parameters includes at least one of a frequency reference point A or an Absolute Radio Frequency Channel Number (ARFCN). The processing circuit is configured to analyze the set of communication parameters, thereby obtaining a set of analysis data.

Abstract: A radar target simulator for simulating a radar target is disclosed. The radar target simulator comprises a display module and an input module via which a user of the radar target simulator is enabled to define a target to be simulated. The radar target simulator also comprises a processing module that is connected with the display module and the input module in a signal transmitting manner. The display module and the processing module together provide a graphical user interface for the user of the radar target simulator. The graphical user interface provides a two-dimensional representation of an at least two-dimensional space. The processing module receives at least one input signal from the input module based on an input of the user. The input of the user is associated with input coordinates in the two-dimensional representation. The processing module processes the at least one input signal, thereby generating a symbol of the target defined.

Abstract: A digital filter circuit for processing at least one signal is described. The digital filter circuit includes an input circuit, a first filter sub-circuit, and a second filter sub-circuit. The input circuit is configured to receive at least two real-valued input signals and/or at least one complex-valued input signal. The digital filter circuit has a first configuration that is associated with complex-valued input signals, wherein in the first configuration the first filter sub-circuit is configured to filter a real part of the at least one complex-valued input signal and the second filter sub-circuit is configured to filter an imaginary part of the at least one complex-valued input signal.

Abstract: The present invention relates to a processing of a signal under test in order to compensate frequency variations in the signal under test. For this purpose, the signal under test is mixed with a further digital signal. A frequency of the further signal which is used for mixing with the signal under test may be adapted in real-time according to frequency variations in the signal under test.

Abstract: A device for authenticating a user is configured to compare first data captured by a user device to second data captured by a security scanner. The device is further configured to authenticate the user of the user device, if the first data matches the second data. The second data is captured by the security scanner by means of electromagnetic radiation with a wavelength in a mm range and/or a cm range. The first data comprises visual information of the user of the user device. The second data comprises biometrical information.

Abstract: A measurement apparatus comprising at least one device interface adapted to connect an auxiliary measurement device and/or a device under test, DUT, to said measurement apparatus; a user interface adapted to input by a user settings for performing a measurement by said measurement apparatus and an artificial intelligence, AI, module adapted to provide current settings of said measurement apparatus, wherein said artificial intelligence, AI, module is machine learned on the basis of connected devices and/or settings during historic measurements performed by said measurement apparatus.

Abstract: A LiDAR test system for testing a LiDAR device under test is described. The LiDAR test system includes an optical module and a target simulator. The LiDAR device under test has a predetermined field of view. The optical module is configured to redirect a LiDAR signal emitted by the LiDAR device under test from a predetermined portion of the field of view to the target simulator, wherein the predetermined portion is adaptable. The target simulator includes a receiver configured to receive the LiDAR signal redirected by the optical module. The target simulator includes a manipulation unit configured to manipulate the received LiDAR signal, thereby generating a manipulated LiDAR signal. The target simulator further includes an emitter configured to emit the manipulated LiDAR signal.

Abstract: A digital filter for processing at least one input signal is described. The digital filter includes at least two filter parts that are separately formed from each other. The at least two filter parts are configured to process the at least one input signal in parallel which is received by the digital filter. A first filter part of the at least two filter parts is implemented in a first chip. A second filter part of the at least two filter parts is implemented in a second chip. Further, a measurement instrument is described.

Abstract: A system (1) for management of lab measurement devices is provided. The system (1) comprises a communication network (101), at least one bench (102), and a master PC (105). The at least one bench (102) comprises a bench PC (103) being connected to the communication network (101), and at least one measurement device (104) being connectable to the bench PC (103). The at least one measurement device (104) is associated with a device model (202). The master PC (105) is connected to the communication network (101), and is configured to manage the at least one measurement device (104), when connected to the bench PC (103), in accordance with its device model (202). In particular, the system (1) improves a manageability of training lab environments.

Abstract: Embodiments of the present disclosure relate to a method of controlling physical data rate for optimizing throughput of multicast transport channels in at least one multicast channel, wherein the allocation of the at least one multicast transport channel to the at least one multicast channel is controlled such that inter alia at least one of all multicast transport channels to be allocated currently is placed within one multicast channel during the common sub-frame allocation period according to a pre-defined ruling when all multicast transport channels to be allocated currently do not fit into the one multicast channel, wherein a remainder of all multicast transport channels to be allocated currently is buffered and scheduled to be transmitted in a following common sub-frame allocation period. Further, a system for controlling physical data rate for optimizing throughput of multicast transport channels is described.

Abstract: A signal analyzer for analyzing an input signal comprises at least one input for receiving the input signal, at least one acquisition unit for acquiring data assigned to the input signal, an acquisition memory for storing the acquired data, the acquisition memory being adapted to store data in at least one ring buffer, and an acquisition memory controller to control at least one of writing the acquired data in the acquisition memory and reading the acquired data from the acquisition memory. The acquisition memory controller comprises a data read module for reading data of the at least one ring buffer. The acquisition memory controller comprises a copy write module which taps data read by the data read module. The acquisition memory comprises an additional memory section. The copy write module is configured to write the data tapped into the additional memory section. Further, a method of processing data from an input signal is described.

Abstract: The invention relates to system (10) for radio frequency, RF, anomaly or interference detection in an environment (20). The system (10) comprises an unmanned vehicle (11) which is configured to move through the environment (20), and at least one RF receiver (12) which is mounted to the unmanned vehicle (11) and which is configured to record RF spectral data at different locations in the environment (20). The system (10) further comprises at least one RF machine learning unit, RFMLU (13), wherein the RFMLU (13) is configured to analyze the RF spectral data in order to detect RF anomalies or interferences. In case of detecting an RF anomaly or interference with the RFMLU (13), the RF receiver (12) is configured to record a baseband signal of an RF environment at the location of the detected RF anomaly or interference.

Abstract: The present invention relates to an improved probe for precisely positioning a probe tip at a measurement point. For this purpose, an image capturing device such as a camera may be firmly arranged at the probe. The image capturing device may capture image data around an area of the probe tip. The captured image data may be provided to a user during positioning the probe tip at the desired measuring point.