Title :
Ultra wideband direction finding using digital channelization receiver architecture
Author :
Lie, Joni Polili ; See, Chong Meng ; Ng, Boon Poh
Author_Institution :
Sch. of Electr. & Electron. Eng., Nanyang Technol. Univ., Singapore
Abstract :
In this paper, UWB direction finding technique using digital channelization receiver architecture Is proposed. The basic idea of this technique is to split the UWB array output into multiple frequency channels and then down-convert each channel into much lower frequency, hence allowing the low sampling rate ADC to be used. Estimation of the DoA of UWB source is achieved by forming a direction finding function using the spectral information from channelizer´s output. A thorough performance analysis from simulation results is presented to verify the proposed technique and to investigate the effect of the system´s parameters on the performance
Keywords :
analogue-digital conversion; channel estimation; direction-of-arrival estimation; radio direction-finding; radio receivers; signal sampling; spectral analysis; ultra wideband communication; DoA estimation; UWB array; digital channelization receiver architecture; down-conversion; low sampling rate ADC; multiple frequency channel; spectral information; ultra wideband direction finding; Array signal processing; Band pass filters; Direction of arrival estimation; Frequency; Linear antenna arrays; Narrowband; Receiving antennas; Sampling methods; Ultra wideband antennas; Ultra wideband technology;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2006.02019