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This paper presents verification methods for a calibrated vector network analyzer. The methods are based on a special measurement technique and a model simulating residual errors. Each residual signal has its own unknown frequency properties and known parameters (distance). The properties of the signals are extracted from joint estimation algorithms. Four experiments were performed and verified the...
This article presents a method for determining complex residual errors of calibrated two-port vector network analyzers. It utilizes the time-domain technique. Calibration residual errors are extracted from a distance-frequency system model using a special estimation algorithm based on the quasioptimal unscented Kalman filter. Because the method requires only three measurement conditions, it is in...
This article presents a new method for verification of the residual errors of calibrated two-port vector network analyzers based on a special time-domain technique. The method requires two devices under test including a high-precision air line. Calibration residual errors are extracted from a distance-frequency system model and special estimation algorithm based on the quasi-optimal unscented Kalman...
A method is introduced for determination of a vector network analyzer's calibration residual errors for measurement of the reflection coefficient. The method utilizes unscented Kalman filtering and spline interpolation time domain techniques. All three residual errors are calculated by processing the measured reflection coefficient of a single verification device, such as an air line terminated with...
The paper is dedicated to the algorithm for determination of residual factors of one-port vector network analyzer. The algorithm is based on using quasi-optimal unscented Kalman filter and presumes processing of changes in the measured frequency response of short-circuited airline. The model of the system contains three fixed reflectors. The frequency parameters of each of them are given by a limited...
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