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2 results about "Vector signal analyzer" patented technology
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A vector signal analyzer is an instrument that measures the magnitude and phase of the input signal at a single frequency within the IF bandwidth of the instrument. The primary use is to make in-channel measurements, such as error vector magnitude, code domain power, and spectral flatness, on known signals.
Multi-path synchronous measurement device
ActiveCN224286982UResistance/reactance/impedenceElectrical measurement instrument detailsComputer hardwareMeasurement device
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.
Owner:CHONGQING WATER RESOURCES & ELECTRIC ENG COLLEGE
An electromagnetic compatibility detection method based on vector signal analysis
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.
Owner:XIAN SUSHI GUANGBO ENVIRONMENTAL RELIABILITY LAB CO LTD