XVII IMEKO World Congress
نویسندگان
چکیده
The main goal of this paper is to characterize the low-frequency part of ADC transfer function by dual tone testing from intermodulation components that are independent of test signal harmonic distortion. The theoretical analyses of incoherently sampled signals in the frequency domain and of intermodulation distortion are provided and the theory is verified by experimental results.
منابع مشابه
XVII IMEKO World Congress Metrology in the 3rd Millennium June 22-27, Dubrovnik, Croatia MEASUREMENT OF FREQUENCY AND TIME - ERRORS DUE TO SYNCHRONIZATION EFFECTS AND ERROR CORRECTION
After an introduction to the mathematical theory of rheolinear systems the application of the results leads to the fact that due to the synchronization there arises a frequency deviation even outside of the synchronization range. The errors caused by this effect were investigated and consequences for highprecision frequency or time measurement and methods of error-correcting are obtained .
متن کاملXVII IMEKO World Congress Metrology in the 3rd Millennium June 22−27, 2003, Dubrovnik, Croatia IMPROVING SINE-FITTING ALGORITHMS FOR AMPLITUDE AND PHASE MEASUREMENTS
− In this paper, improved sine-fitting algorithms for the measurement of amplitude and phase difference between two records of digitized sine waves with the same frequency are presented. These algorithms can be used for example in impedance measurements or to accurately measure the input and the output of a linear system to be characterized in the frequency domain both in amplitude and in phase.
متن کاملXVII IMEKO World Congress Metrology in the 3rd Millennium June 22−27, 2003, Dubrovnik, Croatia A FIRST ORDER INCREMENTAL ANALOG TO DIGITAL CONVERTER BASED ON CONTINUOUS TIME CIRCUITS
In this paper, an incremental Analog-toDigital Converter (ADC) designed as part of the signalconditioning circuitry for tissue impedance measurement system is presented. Continuous-time design techniques has been used and a modified implementation of the conversion algorithm, with respect to its discrete-time counterpart, has been developed. To reduce the influence of the no-idealities, analog ...
متن کاملXVII IMEKO World Congress Metrology in the 3rd Millennium June 22−27, 2003, Dubrovnik, Croatia EVALUATION OF THE DYNAMIC BEHAVIOUR OF HEAVY CURRENT SHUNTS
− A method for the assessment of the dynamic behaviour of heavy current shunts is described, which is based on the evaluation of the shunt frequency response through spectral analysis of input and output measured signals. The method has been tested by applying it to simulated current impulses and experimented in the case of a pulse current, generated by the discharge of a cable capacitance, mea...
متن کاملXVII IMEKO WORLD CONGRESS Metrology for a Sustainable Development September, 17–22, 2006 Rio de Janeiro, Brazil CALIBRATION OF A MEMS INERTIAL MEASUREMENT UNIT
An approach for calibrating a low-cost IMU is studied, requiring no mechanical platform for the accelerometer calibration and only a simple rotating table for the gyro calibration. The proposed calibration methods utilize the fact that ideally the norm of the measured output of the accelerometer and gyro cluster are equal to the magnitude of applied force and rotational velocity, respectively. ...
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تاریخ انتشار 2006