Blind bandwidth detection for a sample stream

摘要

A method for determining the bandwidth of the complex-valued sample stream to generate a time autocorrelation (autocorrelated) of For the second part of the preamble symbol and the first part of the complex value symbol in the preamble sample streams may include a step (40) for correlating. The method, may further include a variety of frequency autocorrelation part which converts the time to generate the auto-correlation of step (42). The method includes determining a first phase distribution for the first frequency region of a variety of auto-correlation part, the first region may further include having the first bandwidth, the decision step 44. The method includes determining a frequency distribution for the second phase to the second region of the various auto-correlation part, the second region further comprises a second having a larger bandwidth than the first bandwidth, wherein the determining step (46) You can. The method may comprise a first phase and a dispersed phase dispersed in a second comparing step of determining the bandwidth of the complex-valued sample stream (48) further,.