Title :
Time delay estimation with multiple looks in colored Gaussian noise
Author :
Wu, Renbiao ; Li, Jian
Author_Institution :
Dept. of Electr. & Comput. Eng., Florida Univ., Gainesville, FL, USA
fDate :
10/1/1999 12:00:00 AM
Abstract :
We present an efficient algorithm for high resolution time delay estimation in colored Gaussian noise with multiple looks. By using a relaxation-based optimization approach and exploiting the Toeplitz property of the noise covariance matrix, the enhanced new algorithm can achieve the corresponding Cramer-Rao bounds (CRBs) with a very small number of independent looks
Keywords :
Gaussian noise; Toeplitz matrices; covariance matrices; delay estimation; relaxation theory; signal classification; Cramer-Rao bounds; Toeplitz property; colored Gaussian noise; noise covariance matrix; relaxation-based optimization approach; time delay estimation; Colored noise; Covariance matrix; Delay effects; Delay estimation; Gaussian noise; Ground penetrating radar; Multiple signal classification; Sampling methods; Signal resolution; Sonar navigation;
Journal_Title :
Aerospace and Electronic Systems, IEEE Transactions on
