Patent ID: 6344735
Filing Date: 2002-02-05
Classification: G01R

Abstract:
A spectrum measuring method using a spectrum analyzer comprising the steps of:repeating a frequency-sweep of frequencies of a received signal; logarithmically amplifying the received signal; detecting an amplified output; converting a detected output into a digital signal value; converting the digital signal value into a decibel value representing 1mW to be 0 dBm; calculating 10P in/10 to obtain a anti-logarithm power value PPin in watt (mW) dimension for each of display points i within a width of the frequency-sweep; averaging for the same display point the power values converted into anti-logarithms that are obtained by repeating the frequency-sweep; converting an average power value for each display point into a logarithmic value; and displaying the logarithmic average power value for each display point as a spectrum.