Direction-of-arrival estimation for constant modulus signals

Signal bias removal with orthogonal transform for adverse mandarin speech recognition - Electronics Letters

OTTERSTEN, B., VIBERG, M., STOICA, P., and NEHORAI, A.: ‘Exact and large sample maximum likelihood techniques for parameter estimation and detection in array processing’ in HAYKIN, s., LITVA, J., and SHEPHERD, T. (Eds.): ‘Radar: Array Processing’ (Springer Verlag, Berlin, 1993) ch. 4, pp. 99-151 MARCOS, S. (Ed.): ‘Les mkthodes a haute resolution: traitement d’antenne et analyse spectrale’ (Herm...

Implementation of the direction of arrival estimation algorithms by means of GPU-parallel processing in the Kuda environment (Research Article)

Direction-of-arrival (DOA) estimation of audio signals is critical in different areas, including electronic war, sonar, etc. The beamforming methods like Minimum Variance Distortionless Response (MVDR), Delay-and-Sum (DAS), and subspace-based Multiple Signal Classification (MUSIC) are the most known DOA estimation techniques. The mentioned methods have high computational complexity. Hence using...

Maximum likelihood separation of phase modulated signals

In this paper we present a Newton scoring algorithm for the maximum likelihood separation and direction of arrival estimation of constant modulus signals, using a calibrated array. The main technical step is the inversion of the Fisher information matrix, and an analytic formula for the update step in the Newton method. We present the algorithm based on the derived update and discuss potential ...

Dire tion-of-Arrival Estimation for Constant Modulus Signals

Initialization Scheme with Least Square Optimization based-DOA Estimation for CMA Adaptive Antenna

This paper presents an initialization scheme for a constant modulus algorithm (CMA) adaptive antenna. With the proposed scheme, the direction of arrival (DOA) of signals is estimated by using nonconventional least square optimization. The antenna steering vector associated with the estimated DOA is used as an initial weight vector for CMA. Simulations were conducted to evaluate the performance ...