Patent ID: 6424932
Filing Date: 2002-07-23
Classification: G01R,H04B

Abstract:
A method of measuring the spectral energy within a measurement bandwidth in the spectrum of a modulated signal which has a modulation bandwidth exceeding said measurement bandwidth and which contains at least two intervals of random modulation to be included in the measurement and an interval of non-random modulation to be omitted from the measurement, comprising the steps of:receiving a signal containing the intervals of random and non-random modulation; identifying the interval of non-random modulation in the signal; identifying a first interval of random modulation in the signal in predetermined relationship with the interval of non-random modulation; identifying a second interval of random modulation in the signal in predetermined relationship with the interval of non-random modulation; selectively measuring the energy content of the first and second intervals of random modulation, while excluding the interval of non-random modulation; and averaging the results of those selective measurements.