Huawei Liu, Baoqing Li, et al.
Sensors (Switzerland)
In this paper, we introduce a sub-band direction-of-arrival (DOA) estimation method suitable for employment within an automatic bearing tracking system. Inspired by the magnitude-squared coherence (MSC), we extend the MSC to the sub-band and propose the sub-band magnitude-squared coherence (SMSC) to measure the coherence between the frequency sub-bands of wideband signals. Then, we design a sub-band DOA estimation method which chooses a sub-band from the wideband signals by SMSC for the bearing tracking system. The simulations demonstrate that the sub-band method has a good tradeoff between the wideband methods and narrowband methods in terms of the estimation accuracy, spatial resolution, and computational cost. The proposed method was also tested in the field environment with the bearing tracking system, which also showed a good performance.
Huawei Liu, Baoqing Li, et al.
Sensors (Switzerland)
Zhaotai Pan, Yi Ge, et al.
IEEE ICCC 2017
Qianwei Zhou, Baoqing Li, et al.
IEEE Trans Ind Electron
Xingshui Zu, Shaojie Zhang, et al.
Sensors (Basel, Switzerland)