METHOD AND SYSTEM FOR ACOUSTIC CHANNEL INFORMATION DETECTION

摘要

A method or a system for acoustic channel information detection includes at least one speaker and at least one microphone within an environment. The microphone receives a CDMA modulated audio training signal from the speaker via a plurality of acoustic channels within the environment, wherein the CDMA modulated audio training signal is a pre-known CDMA modulated audio training signal, and comprises a data signal, a spreading code and/or a continuous frequency code. Thus, the microphone is able to estimate the acoustic channel information including frequency dependence according to the received CDMA modulated audio training signal and the pre-known CDMA modulated audio training signal.

主权项

1. A system for acoustic channel information detection, comprising:
at least one speaker located in an environment for transmitting a CDMA modulated audio training signal; and at least one microphone located in said environment for receiving said CDMA modulated audio training signal from said speaker via at least one acoustic channel within said environment to estimate an acoustic channel information according to said received CDMA modulated audio training signal.