Bandwidth analysis system and method
First Claim
Patent Images
1. A bandwidth analysis system, comprising:
- spectrum capture means for analyzing a signal and producing a frequency spectrum of the signal; and
analysis means for determining a bandwidth of the spectrum, detecting a hole in the spectrum and determining characteristics of the hole in the spectrum.
1 Assignment
0 Petitions
Accused Products
Abstract
The present invention is a system and method that uses a digital spectrum analyzer to digitize a spectrum and loads the digitized spectrum into a computer. The computer scans the spectrum to determine a zero dB reference by cyclic averaging and determines the upper and lower cutoff frequencies using inward and outward scan techniques which are averaged. During zero dB level determination holes in the spectrum are ignored and during upper and lower cutoff frequency determination the holes or drop outs in the spectrum are located, counted and characterized.
-
Citations
24 Claims
-
1. A bandwidth analysis system, comprising:
-
spectrum capture means for analyzing a signal and producing a frequency spectrum of the signal; and analysis means for determining a bandwidth of the spectrum, detecting a hole in the spectrum and determining characteristics of the hole in the spectrum. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 19, 21)
-
-
9. A bandwidth analysis system, comprising:
-
spectrum capture means for analyzing a signal and producing a frequency spectrum of the signal; and analysis means for determining a zero reference level, a bandwidth and characteristics of a hole in the spectrum by detecting the hole by comparing spectrum data values with a minimum hole width and a minimum hole depth provided by a user, determining the bandwidth by scanning spectrum data inward from edges of the spectrum to determine outside leading and trailing edge cutoff points by comparing spectrum data to a cutoff level provided by the user, scanning the spectrum data outward from a maximum spectrum value point, while characterizing the holes, to determine inside leading and trailing edge cutoff points, averaging the inside and outside leading edge cutoff points and averaging the inside and outside trailing edge cutoff points, excluding as inside edge points data points outside a predetermined range from the outside edge cutoff points, and excluding holes from the zero level determination calculations during bandwidth determination. - View Dependent Claims (20, 22)
-
-
10. A method of bandwidth analysis, comprising:
-
(a) capturing a spectrum of a signal; (b) scanning the spectrum to find a reference level using a computer; (c) determining, using the computer, a bandwidth from a predetermined cutoff level and the reference level and excluding spectrum holes from the bandwidth determination by detecting the holes; and (d) calculating, using the computer, spectrum characteristics from the spectrum, the reference level and the bandwidth. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 23)
-
-
18. A method of measuring a hole in a spectrum, comprising:
-
(a) capturing a spectrum of a signal; (b) scanning the spectrum to detect the hole and determine location and size characteristics of the hole in the spectrum using a computer; (c) capturing a narrower span of the spectrum around the located hole; and (d) scanning the narrower span of the spectrum determining cutoff levels and a bandwidth of the located hole using the computer. - View Dependent Claims (24)
-
Specification