Coherent vs. Noncoherent Integration a Deal of Gain for GPS Weak Signal Acquisition
A GPS receiver in order to give a navigation solution for weak signal environments, it should first detect all visible or possible satellites, this process is done by the receivers acquisition module. For weak signal processing the acquisition module should perform coherent integrations followed by noncoherent integration in other to obtain a better gain of the signal buried is a noisy environment. The gains and losses of these integration methods will play an important role in the GPS receiver sensitivity. Features of coherent and noncoherent integration as well as combination of integration time, gains and losses were analyzed. Simulations with real satellite data were accomplished to demonstrate various signal gains for different integration periods and combination among these two methods.
coherent integration noncoherent integration weak signal acquisition receiver sensitivity
Oliver Garcia Angel Magallanes Qin Hong Lei
School of Electronic Information Engineering Beijing University of Aeronautics & Astronautics Beijing, China
国际会议
2010 International Conference on Circuit and Signal Processing(2010年电路与信号处理国际会议 ICCSP 2010)
上海
英文
5-9
2010-12-25（万方平台首次上网日期，不代表论文的发表时间）