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An improved 2-D ESPRIT Method for joint DOA-delay estimation
- Source :
- 2007 International Conference on Communications, Circuits and Systems.
- Publication Year :
- 2007
- Publisher :
- IEEE, 2007.
-
Abstract
- For the purpose of estimating DOAs and delays of multipath signals, a novel improved 2-dimensional (2-D) ESPRIT is proposed. The improved method estimates the joint space-time signal subspace firstly. Then FFT and deconvolution is done to map time delay parameters into frequency phase shifts and a modified joint signal subspace is constructed. At last DOAs and delays are estimated by using rotational invariance property. Compared with traditional 2-D ESPRIT method, the method we proposed here can prevent the correlated noise problem when FFT is done to estimated channel directly. Simulation results show the effectiveness of the improved method.
Details
- Database :
- OpenAIRE
- Journal :
- 2007 International Conference on Communications, Circuits and Systems
- Accession number :
- edsair.doi...........968ce3757312b5d9197123a36413500b