Back to Search
Start Over
Robust DOA Estimation for Sources with Known Waveforms in Impulsive Noise Environments
- Source :
- SAM
- Publication Year :
- 2020
- Publisher :
- IEEE, 2020.
-
Abstract
- Conventional direction of arrival (DOA) estimation methods for known waveform sources have often assumed the noise being Gaussian distribution. However, the impulsive noise are frequently encountered in practice, which may severely degrade their estimation performance. To deal with this problem, we firstly construct a hybrid cost function to obtain the matrix related to unknown DOAs and complex amplitudes in the presence of impulsive noise. Then, by incorporating the majorization-minimization (MM) framework, the cost function is optimized iteratively. Finally, the DOAs and complex amplitudes are estimated via using the inherent relationship of the matrix calculated from the MM step. As demonstrated by simulation results, for strongly impulsive noise, the proposed method has a better estimation performance than many existing methods. Moreover, it can handle both weakly and strongly impulsive cases effectively.
- Subjects :
- Computer science
Gaussian
Direction of arrival
020206 networking & telecommunications
02 engineering and technology
Function (mathematics)
symbols.namesake
Noise
Matrix (mathematics)
Amplitude
Distribution (mathematics)
0202 electrical engineering, electronic engineering, information engineering
symbols
Waveform
020201 artificial intelligence & image processing
Algorithm
Subjects
Details
- Database :
- OpenAIRE
- Journal :
- 2020 IEEE 11th Sensor Array and Multichannel Signal Processing Workshop (SAM)
- Accession number :
- edsair.doi...........de0fea4a6a815f2c82d44c3dff5ea6ad