Abstract. Adaptive inverse control of linear system with fixed learning rate least mean square (LMS) algorithm is improved by varying the learning rate. This variable learning rate LMS algorithm is proved to be convergent by using Lyapunov method. It has better performance especially when there is noise in command input signal. And it is simpler than the Variable Step-size Normalized LMS algori...

The principal issue in acoustic echo cancellation (AEC) is to estimate the impulse response between loudspeaker and microphone of a hands-free communication device. This application can be addressed as system identification problem, which solved by using an adaptive filter. most common one for AEC normalized least-mean-square (NLMS) algorithm. It known that overall performance this algorithm co...

Face detection is one of the most difficult image processing issues. In many stage face recognition, important parts detection. recent years, there has been much progress in Many recognition system adopt or develop .We have proposed automatic algorithm an individual person through group by matching extracted from based on Normalized Cross Correlation (NCC) functions and skin variable size detec...

We consider a forced pendulum with a horizontally oscillating suspension point. Bifurcations associated with stability of the symmetric period-1 orbit (SPO), arising from the “unforced” stationary point, are investigated in details by varying the two parameters A (the normalized driving amplitude) and Ω (the normalized natural frequency). We thus obtain the phase diagram showing the bifurcation...

We study the coefficients in the expansion of Jack polynomials in terms of power sums. We express them as polynomials in the free cumulants of the transition measure of an anisotropic Young diagram. We conjecture that such polynomials have nonnegative integer coefficients. This extends recent results about normalized characters of the symmetric group. 2000 Mathematics Subject Classification: 05...

Medicine, University of Alabama at Birmingham, Birmingham, AL, USA Full list of author information is available at the end of the article Figure 1 Schematic diagram for calculating torsional hysteresis–the area within the systolic and diastolic arm of the normalized torsion volume (TV) curves (A), normalized TV curves for the two groups (B) and calculated torsional hysteresis (C). Torsion hyste...