Title :
Noise Analysis for a New Digital Beamformer On-Receive-Only
Author :
Hong, Sheng ; Yang, Dongkai ; Liu, Kefei ; Gao, Shuliang ; Xiong, Huagang ; Zhang, Qishan
Author_Institution :
Sch. of Electron. & Inf. Eng., Beihang Univ., Beijing, China
Abstract :
This paper provides noise analysis for a new kind of digital beamformer on-receive-only which uses pseudorandom spreading sequences as spreading sequence weights. It investigates the noise influence on the magnitude and phase of the array correlation output. Aiming at the corruption of white additive noise, we respectively adapt minimal error probability (MEP) detection to evaluate the array correlation output magnitude and combine maximal likelihood estimation (MLE) with minimum distance decision (MDD) to evaluate the array correlation output phase. From the simulation, we succeed in detecting the magnitude of the array correlation output and estimating its phase within noise environment.
Keywords :
AWGN; array signal processing; error statistics; maximum likelihood estimation; noise; random sequences; digital beamformer on-receive-only; maximal likelihood estimation; minimal error probability detection; minimum distance decision; noise analysis; pseudorandom spreading sequences; spreading sequence weights; white additive noise; Adaptive arrays; Error probability; Gaussian noise; Information analysis; Maximum likelihood estimation; Phase detection; Phase estimation; Phase noise; Phased arrays; Working environment noise;
Conference_Titel :
Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on
Conference_Location :
Beijing
Print_ISBN :
978-1-4244-3692-7
Electronic_ISBN :
978-1-4244-3693-4
DOI :
10.1109/WICOM.2009.5302888