Distortion Immunity of MLS-Derived Impulse Response Measurements

摘要: Maximum-length-sequence (MLS) measurement of system impulse responses offers a potential enhancement in error immunity over periodic testing, although care must be exercised setting the MLS excitation amplitude order to realize this potential. The effects nonlinearity are studied, particular way which response errors due distributed across period. consequences such cumulative spectral dispIay plots also investigated. Finally inverse-repeat sequences (IRS) shown have complete even-order while maintaining many advantages MLS.