Title :
Estimation of Doppler-Shift Based on Correlation-Peak Waveform
Author :
Yao Tingyan ; Zhao Weigang ; Zhang Qishan ; Kou Yanhong
Author_Institution :
Beijing Univ. of Aeronaut. & Astronaut., Beijing
Abstract :
In DS/SS receiver, correlation peak power is square of sine-function of Doppler shift. By taking this priori knowledge into account, the paper put forward a Doppler shift estimation algorithm using nonlinear least squares estimation method. Estimation performance was evaluated by computer simulation and compared with four-quadrant frequency discriminator algorithm (FQFD) used in GPS receivers.
Keywords :
Doppler shift; estimation theory; least mean squares methods; spread spectrum communication; DS-SS receiver; Doppler-shift estimation algorithm; correlation-peak waveform; direct sequence spread spectrum; nonlinear least squares estimation; Artificial neural networks; Estimation theory;
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.2007.6247583
