Rohde and Schwarz Gmbh & Co. Kg

Luke Cirillo

Andreas Lagler

Florian Ramian

Johannes Steffens

Alexander Breitenfeld

Clemens Lohmer

Steffen Heuel

Gerd Bresser

Torsten Schorr

Prabaker Balasubramanium

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.

Measurement device and method for controlling the same

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. In the case of generating the digital instruction signal by the signal source, the device under test includes circuitry configured to generate an analog output signal based on the digital instruction signal received, wherein the directional element is configured to forward the analog output signal generated to the analysis module. The analysis module includes circuitry configured to determine at least one characteristic parameter of the device under test based on the analog output signal of the device under test or the digital output signal of the device under test. Moreover, a measurement method for characterizing a device under test is described.

Measurement system and measurement method

The invention relates to a method for determining a deviation of a broadband measurement signal from a reference signal. The method provides the steps: subdivision of the signal into at least two measurement-signal frequency bands; displacement of the measurement-signal frequency bands; and reconstruction of the at least two measurement-signal frequency bands. A corresponding measurement device is also contained within the idea of the invention.

Method and a measuring device for measuring broadband measurement signals

A multiuser measurement system is provided. The multiuser measurement system may authenticate a specific user. When the user has been authenticated, user related data may be obtained from a memory. The user related data are stored in the memory in an encrypted manner, and the encrypted data are only decrypted after authenticating the user.

Multiuser measurement system and method for operating a multiuser measurement system

The present disclosure relates to a method () for characterizing a wideband RF device-under-test (DUT) by means of a narrowband RF source or a narrowband RF receiver, the method () comprising: selecting () a bandwidth of the wideband RF DUT to be analyzed; dividing () the selected bandwidth into at least two overlapping sub-bands, the respective sub-bands having a frequency range that corresponds to a bandwidth of the narrowband RF source or the narrowband RF receiver; acquiring () a response of the wideband RF DUT for each of the at least two overlapping sub-bands by means of at least two narrowband measurements using the narrowband RF source or the narrowband RF receiver; and calculating () a continuous amplitude response and a continuous phase response of the wideband RF DUT in a frequency range that corresponds to the combined bandwidth of the at least two overlapping sub-bands, said calculation making use of the overlap of the sub-bands.

Wideband frequency response characterization with a narrowband source or receiver

The present invention relates to the automatic configuration of a measuring and test device in a multi-user test system. Individual users are initially authenticated. An individual user profile can be generated for authenticated users. The individual user profile can be stored in a user database. After authentication of a user, the user profile can be read-out from the profile database and then a measuring and test device can then be automatically adjusted corresponding to the user profile.

Multi-user test system and method for configuring a multi-user test system

A measurement system includes a measurement module, a processing module, and a display. The measurement module is configured to conduct measurements on a device under test in a repetitive manner in order to obtain measurement results assigned to the repeated measurements. The processing module is configured to combine the measurement results obtained. The processing module is also configured to perform a statistical analysis in a live manner in order to calculate at least one of a live statistical significance parameter of the combined measurement results and a time duration required to obtain a certain statistical significance of the measurement results. The display is configured to display at least one of the live statistical significance parameter and the time duration. Further, a method of providing statistical information is described.

Measurement system as well as method of providing statistical information

A method for determining phase noise in a periodically modulated signal is described. The modulated signal is processed to generate a processed signal from the modulated signal. At least an approximate period of a modulation of the modulated signal is determined from the processed signal. The type of modulation of the modulated signal is determined from the processed signal. The modulated signal is demodulated based on the determined period and the determined type of modulation to generate a demodulated signal, and the phase noise is determined from the demodulated signal. Moreover, a measurement device is described.

Method for determining phase noise in a periodically modulated signal

The invention relates to a method for investigating signal parameters in an electrical measuring device with a display element with the method steps: display of a detected signal on the display element, manual masking of at least one signal component of the signal by a user by means of a masking element of the measuring device and investigation of signal parameters from the masked signal component or from the unmasked signal component of the signal by the measuring device. At least one further signal parameter is also investigated alongside the time duration and the bandwidth of the masked signal component. According to the invention, a corresponding measuring device is also provided.

Method and a measuring device for investigating signal parameters

An arrangement for signal analysis provides at least one central data-processing unit and a screen unit connected to the at least one central data-processing unit, wherein the central data-processing unit calculates a spectrum and a spectrogram from a digitised signal. The at least one central data-processing unit is embodied in such a manner that it controls the screen unit in such a manner that the spectrogram of the digitised signal, the characteristic of the spectrum of the digitised signal and the characteristic of the digitised signal present in the time domain can be displayed together on the screen unit.

Signal analysis in time and frequency

The invention is related to a method and a measurement device for performing multidimensional signal analysis. The measurement device comprises at least one input terminal configured to apply a signal for a signal analysis. A displaying unit is configured to display the applied signal. A masking unit is configured to define a signal mask, wherein at least one signal mask parameter of the signal mask dynamically varies over the signal analysis time of the applied signal.

Measurement device and method for a multidimensional signal analysis

A method for compressing IQ measurement data obtained from a signal is described. Within the IQ measurement data, at least one block of IQ data is determined where redundancy of the respective data can be exploited. The IQ data of the at least one block is transformed into a transform domain where redundancy of the respective data can be exploited. Transform coefficients obtained in the transform domain are determined and assessed with regard to a pre-defined criteria so as to determine whether the transform coefficients comprise significant information. Only the IQ data assigned to transform coefficients having significant information is stored along with indices in the transform domain indicating where the respective transform coefficients occur in the transform domain.

Method for compressing IQ measurement data

A measuring device for phase-coherent analysis of frequency-hopping signals is provided. The measuring device comprises a signal acquisition unit and an analyzing unit. Whereas the signal acquisition unit is configured to obtain an In-phase/Quadrature-phase-signal (I/Q-signal) and to provide said I/Q-signal for the analyzing unit, the analyzing unit is configured to detect hop occurrences at nominal hop frequencies based on the provided I/Q-signal. In addition to this, the analyzing unit is further configured to specify at least one common reference frequency with respect to the hop occurrences.

Measuring device and method for phase-coherent analysis of frequency-hopping signals

A measuring device for measuring a radar signal is provided. The radar signal is generated from a digital reference signal. The measuring device comprises a memory configured to store a digitized radar signal derived from the radar signal and the digital reference signal. The measuring device further comprises a radar compression filter configured to filter the digitized radar signal, resulting in a correlation of the digitized radar signal with the digital reference signal. The measuring device further comprises a frequency shifter configured to successively perform a frequency shift of either the digital reference signal or the radar signal with at least two simulated Doppler shift frequencies.

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Poing, Germany

Luke Cirillo