Quantized multiple sinusoids signal estimation algorithm
Radu Mihail Udrea, Nicolae D. Vizireanu · Journal of Instrumentation · 2008
A precise and efficient quantized multiple sinusoids signal estimation algorithm is presented. For different initial conditions obtained using classical spectral estimation algorithms the final solution of our algorithm is not unique. We start to minimize a nonlinear cost function. The accuracy of the initial values of iterations has a large influence on the speed of convergence. An iterative process is performed to reduce the cost function. Algorithm stops when quantization conditions are satisfied. Our algorithm is computationally efficient.