Method and apparatus for measuring characteristics of a multi-channel system in the presence of crosstalk
First Claim
1. A method for measuring channel characteristics of a multi-channel system, comprising:
- applying a first chirp as an input to a first channel of the multi-channel system at a first time;
applying a second chirp as an input to a second channel of the multi-channel system at a second time, the second time being separated from the first time by a predetermined time interval;
acquiring an output signal from a selected one of the first channel or the second channel;
separating at least one crosstalk component from non-crosstalk components in the first output signal to characterize the selected one channel based on non-crosstalk components.
2 Assignments
0 Petitions
Accused Products
Abstract
A method and apparatus for measuring channel characteristics of a multi-channel system. In accordance with the method and the apparatus, a first chirp is applied as an input to one channel of a multi-channel system at a first time, and a second chirp is applied as an input to another channel of the multi-channel system at a second time, the second time being separated from the first time by a predetermined first time interval. An output signal is acquired from a selected one of the channels. At least one crosstalk component is separated from non-crosstalk components in the output signal to characterize the selected channel based on non-crosstalk components. Preferably, the chirp is an exponential chirp that enables harmonic distortion components to be distinguished and measured in one channel in the presence of crosstalk from one or more other channels.
22 Citations
56 Claims
-
1. A method for measuring channel characteristics of a multi-channel system, comprising:
-
applying a first chirp as an input to a first channel of the multi-channel system at a first time; applying a second chirp as an input to a second channel of the multi-channel system at a second time, the second time being separated from the first time by a predetermined time interval; acquiring an output signal from a selected one of the first channel or the second channel; separating at least one crosstalk component from non-crosstalk components in the first output signal to characterize the selected one channel based on non-crosstalk components. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 53, 54, 55)
-
-
27. An apparatus for measuring channel characteristics of a multi-channel system, comprising:
-
a signal generator for generating a first chirp as an input to a first channel of the multi-channel system at a first time and for generating a second chirp as an input to a second channel of the multi-channel system at a second time, the second time being separated from the first time by a predetermined time interval; a signal acquisition device for acquiring an output signal from a selected one of the first channel or the second channel; a signal processing device for separating at least one crosstalk component from non-crosstalk components in the first output signal to characterize the selected one channel based on non-crosstalk components. - View Dependent Claims (28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 56)
-
Specification