METHOD FOR MEASURING THE LAW OF CHANGE OF TUNING OF CARRIER FREQUENCY OF FREQUENCY-MODULATED RF PULSES Russian patent published in 1999 - IPC

FIELD: radio engineering, applicable for measurement and monitoring of radio-frequency radiation parameters, determination of mode of received signals. SUBSTANCE: this object accomplished at realization of the invention provides for measurement of the law of frequency variation in RF pulse at FM carrier frequency in real time (or close to it) at prior uncertainty of parameters of FM pulses in the form of a single number. The object is accomplished by that in the method for measuring the law of change of tuning of FM pulse carrier frequency at pulse beginning and end, calculating mean value of carrier frequency as arithmetic mean of the values of carrier frequency at pulse beginning and end, the value of carrier frequency in the middle of RF pulse length is measured and compared with the mean value of carrier frequency calculated before; it the compared values are equal, we have a linear law of frequency variation, if they are unequal - a non-linear one; if the measured value is larger than the calculated one, we have a convex function of frequency variation, if it is smaller - a concave one. EFFECT: enhanced speed of response by two and more times, depending on the type of the law of frequency variation. 3 dwg