6 results about "Vector signal analyzer" patented technology

The invention provides an automatic test system and method for a third-party high-power repeater, and relates to the technical field of automatic test equipment, and the system comprises an integrated reconfigurable passive link box, a control host, a vector signal generator and a vector signal analyzer. The integrated reconfigurable passive link box comprises a box body, a radio frequency switch matrix network, an embedded function network, a control port, an input port, an output port, an uplink interface and a downlink interface. The radio frequency switch matrix network and the embedded function network are arranged in the box body. The input port, the output port, the uplink interface and the downlink interface are arranged on the surface of the box body. The vector signal generator is connected with the input port, the vector signal analyzer is connected with the output port, and a third-party high-power repeater to be tested is arranged between the uplink interface and the downlink interface. According to the invention, the radio frequency switch matrix network and the embedded function network are packaged in the integrated reconfigurable passive link box, and the control host is utilized to carry out automatic testing on the third-party high-power repeater according to the preset process, so that frequent operation processes are avoided, and damage to instruments is reduced.

A measurement system is described for the comprehensive characterization of millimeter-wave / sub-THz devices under both continuous-wave (CW) and modulated signal excitation. CW measurement setups, which include a vector network analyzer (VNA) and VNA frequency extenders (VNA-EXT) are enhanced by the integration of an IF vector signal generator (VSG) and IF vector signal analyzer (VSA). The measurement system incorporates a processing unit configured and operable to process a modulated test signal to mitigate nonlinear behavior. A linearization algorithm is used to linearize the frequency multipliers within the VNA-EXT, ensuring error-free RF modulated signal generation at a device under test (DUT) input reference plane.

This utility model relates to the technical field of measurement devices, and discloses a multi-path synchronous measurement device, including a vector signal generator and a vector signal analyzer. A signal storage unit is provided between the vector signal generator and the vector signal analyzer. The signal storage unit is used to sequentially receive and store multiple vector frequency signals generated in the vector signal generator, and to sequentially receive and store multiple acquisition frequency signals set in the vector signal analyzer. It also includes a controller and a device under test (DUT). The controller is electrically connected to the signal storage unit, and the DUT is electrically connected to both the signal storage unit and the vector signal analyzer. This utility model aims to increase measurement speed and improve testing efficiency.

The invention provides a high-precision EMI diagnosis and pretest system based on a vector signal analyzer, and belongs to the technical field of data processing, and the system specifically comprises the steps: according to EMI interference signal source data in an interference signal source combination in different superposition risk types, determining an interference signal in a darkroom when it is determined that an environment interference signal in the darkroom needs to be considered; the method comprises the following steps: acquiring a deviation condition of vector signal characteristics of interference signal source combinations between different test targets, determining an identification strategy for identifying interference signals in environment interference signals according to the deviation condition, and determining the identification strategy for identifying the interference signals in the environment interference signals according to different identification interference signals. According to the invention, the method determines the diagnosis test method of the test target according to the coincidence condition between the superposed interference signals of the test target and other test targets in combination with the recognition strategy for recognizing the interference signals, and improves the reliability of test processing.

This invention discloses an electromagnetic compatibility (EMC) testing method based on vector signal analysis, belonging to the field of EMC testing technology. It addresses the problem of increasing deviations in EMC performance evaluation results and is applicable to the compatibility performance evaluation of multi-standard wireless communication devices such as Wi-Fi 6 / 7. The method uses a vector signal analyzer to collect and identify all wireless signals within the detection area in real time, automatically determining device coexistence conditions and triggering a compatibility detection mechanism. It utilizes time-domain signal down-conversion and IQ component extraction techniques to comprehensively analyze signal modulation accuracy, carrier frequency offset, and modulation distortion. Under normal signal quality conditions, it quantitatively evaluates the router's transmission characteristics and interference risks by calculating channel power, adjacent channel leakage power ratio, and out-of-band transmit strength. This enables accurate identification of signal interference sources in multi-device coexistence environments, achieving high-precision testing of the EMC performance of wireless devices.

The invention discloses an automatic radio frequency index testing system and method, and relates to the technical field of wireless communication radio frequency index testing. The system comprises: a test board, wherein different signal paths are formed by controlling connection or disconnection of a plurality of radio frequency switch devices, attenuators, combiners and frequency dividers on the test board; the Gaussian noise generator is used for generating white noise so as to test different signal paths on the test board; the vector signal analyzer is used for measuring spectrum energy of signals passing through different signal paths on the test board and generating a first parameter calibration table for the test board based on white noise generated by the Gaussian noise generator; and the cable modem terminal system is used for sending a downlink test signal or receiving an uplink test signal through the signal path of the test board for the tested equipment under the condition that the test instruction is received. According to the invention, the wave band distribution requirements of different radio frequency working scenes are met, and the automation level and the test consistency are improved.