Rohde & Schwarz Patente

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The invention generally relates to a multistatic radar system (10) and a method for a spatially resolved detection of an object under test (24). The multistatic radar system (10) includes an at least two-dimensional multistatic array (20) of antenna elements (16, 18)having an at least partially shared coverage area (14). At least one data processing circuit (22) is coupled to the array (20). Analog and/or digital beamforming is performed thereby obtaining at least one image (26) of the object under test (24) at least partially being located within the shared coverage area (14). Processing the image (26) obtained is used to resolve at least one scattering center (28) of the object under test (24). A spatially resolved scattering center distribution (30) is determined based on the image (26) obtained.

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The present invention relates to a generation of a signal by executing a waveform dataset comprising waveform descriptive parameters. The execution of the waveform description parameters is limited by target device information specifying one or more specific target devices and time information specifying an execution period of the waveform descriptive parameters. By providing a waveform dataset comprising not only the waveform descriptive parameters, but also further information, in particular time information for limiting the execution period of the waveform descriptive parameters, the generation of the respective waveform signal is controlled.

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A device for identifying network devices which are located in a NAT based communication network comprises: an obtaining unit, configured to obtain network traffic sent to or from the NAT based communication network; an extracting unit, configured to extract identification data from the obtained network traffic; and a processing unit, configured to perform a first method to determine a first number of network devices in the NAT based communication network and a first confidence value, based on the identification data; perform a second method to determine a second number of network devices in the NAT based communication network and a second confidence value, based on the identification data; and calculate a weighted result based on the first number, the first confidence value, the second number and the second confidence value.

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The present disclosure relates to a radio frequency (RF) measurement system and a method for recording baseband and positioning data. The RF measurement system comprises at least one RF measurement device. The RF measurement device comprises at least one RF chain and at least one data processing circuit connected to a memory device. The RF measurement device is configured to receive a global navigation satellite system (GNSS) signal. The GNSS signal is indicative of a position and/or a bearing. The RF measurement device is configured to receive at least one analog RF signal different of the GNSS signal. The RF measurement device is configured to convert the at least one analog RF signal into at least one baseband signal. The at least one data processing circuit is configured to store baseband data associated with the baseband signal and positioning data associated with the GNSS signal within the memory device.

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Ein System zur Übertragung von zeitkritischen analogen Signalen und/oder digitaler Daten zwischen mindestens einem sendeseitigen Gerät und einem empfangsseitigen Gerät innerhalb eines mobilen oder stationären Teilnehmers besteht aus zumindest einem sendeseitigen Protokollwandler und zumindest einem empfangsseitigen Protokollwandler. Der sendeseitige Protokollwandler ist mit zumindest einem sendeseitigen Gerät verbunden und der empfangsseitige Protokollwandler ist mit zumindest einem empfangsseitigen Gerät verbunden. Zwischen dem sendeseitigen Protokollwandler und dem empfangsseitigen Protokollwandler findet eine Übertragung von Datenpaketen über ein Datenübertragungsnetzwerkt statt. Insbesondere erlaubt das System eine flexible Verschaltung zwischen sendeseitigen und empfangsseitigen Geräten.

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The present invention relates to a measurement of radio-frequency signals by a measurement arrangement comprising a radio-frequency lens for mapping a vertex of a reflector to a virtual vertex. Accordingly, measurement of radio-frequency signals may be performed either at the vertex of the reflector or the virtual vertex generated by means of the radio-frequency lens.

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<div notation="docdba" type="abstract" xml:base="/api/emi/section/a15d12b5-82d5-4476-9030-f604efc704a6/image" xml:lang="en"><p>A test system for calibration of a communication device (12) hat at least one signal generation unit (32), at least one receiver unit (34) and at least one calibration unit (36), the calibration unit (36) having a calibration output (40). The calibration unit (36) is configured to determine calibration data based on the measurement data of the receiver unit (34) and a reference data pattern, the reference data pattern depending on the test data pattern, and wherein the calibration unit (36) is configured to output the calibration data via the calibration output (40).Further, a test setup (10) and a method for calibrating a communication device (12) are shown.</p></div>

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A receiver module (10) for receiving an electromagnetic signal, comprising an analog frontend (12) and at least a first receiving channel (14) and a second receiving channel (16) is described. The receiving channels (14, 16) are both connected to the analog frontend (12), wherein the frontend (12) is configured to receive an input signal comprising a symbol sequence and to forward the input signal to the receiving channels (14, 16), wherein the receiving channels (14, 16) each comprise an analog to digital converter (22, 26), wherein the second receiving channel (16) comprises an attenuator (30), wherein the first receiving channel (14) and the second receiving channel (16) each comprise a soft-input-soft-output-decoder (24, 28), and wherein the soft-input-soft-output decoders (24, 28) each are configured to process the symbol sequence. Moreover, a data transmission system and a method for receiving an electromagnetic signal are described.

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Es ist eine Radartransponder-Anordnung zur Erzeugung emulierter Signale von Radarzielen gegeben. Die Radartransponder-Anordnung weist eine Empfangseinheit (32) zum Empfangen eines Radarsignals, einen Signalgenerator (16) zur Generierung eines Steuersignals (m'(t)) zur Erzeugung eines Modulationssignals zur Modulation des empfangenen Radarsignals und eine Sendeeinheit (33) zum Zurücksenden des modulierten Signals auf. In diesem Kontext ist das Modulationssignal mehrwertig in seinem zeitlichen Signalverlauf vorgebbar ist.

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The invention relates to a method of performing a measurement of a device under test (12) by using an antenna array (16), the method comprising the steps of: - Providing an antenna array (16) that comprises several antenna elements (18), - Providing a device under test (12) configured to communicate over-the-air, - Locating the device under test (12) at a first test location, thereby establishing a first relative distance between the device under test (12) and the antenna array (16), - Performing a first measurement over-the-air when the first relative distance is provided between the device under test (12) and the antenna array (16), thereby obtaining first measurement results, - Moving the antenna array (16) and/or the device under test (12), thereby establishing a second relative distance between the device under test (12) and the antenna array (16), and - Performing a second measurement over-the-air when the second relative distance is provided between the device under test (12) and the antenna array (16), thereby obtaining second measurement results, wherein a quiet zone is established, in which the device under test (12) is located, and wherein the size of the quiet zone is derived from a combination of at least two transfer functions associated with the first measurement results and the second measurement results. Further, a measurement system (10) is described.