Title :
Joint power distribution algorithm for multi-user downlink of JT MIMO system
Author :
Yingxiang Li ; Zhiheng Hu ; Xianci Xiao
Author_Institution :
Chengdu Univ. of Inf. Technol., Chengdu
Abstract :
In this paper, we are interested in the problem of the estimation of polynomial phase signals affected by an additive Gaussian white noise. A method for 3-order polynomial phase signal parameter estimation is proposed. Firstly the segment correlation method is used to obtain linear frequency modulated (LFM) signal. Then some LFM detection and parameter estimation methods are adopted to solve this problem, such as Radon-ambiguity transform, time-domain dechirp, segment correlation dechirp methods. The merit of this new method is validated by illustrative examples in low signal-to-noise ratio (SNR) condition.
Keywords :
AWGN; correlation methods; phase estimation; polynomials; signal processing; 3-order polynomial phase signal parameter estimation; additive Gaussian white noise; linear frequency modulated signal; segment correlation method; Additive white noise; Chirp modulation; Correlation; Frequency modulation; Parameter estimation; Phase estimation; Polynomials; Signal to noise ratio; Time domain analysis; White noise;
Conference_Titel :
Communications, Circuits and Systems, 2007. ICCCAS 2007. International Conference on
Conference_Location :
Kokura
Print_ISBN :
978-1-4244-1473-4
DOI :
10.1109/ICCCAS.2007.4348155
