DFT-Code acquisition method can estimate Doppler shifts while searching PN phase.It is necessary to increase the number of DFT points to keep the frequency error in the range of trace loop.
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- DFT偽碼捕獲算法在進(jìn)行偽碼搜索的同時(shí)估計多普勒頻偏,為了滿(mǎn)足捕獲精度要求,需要增加DFT點(diǎn)數,但隨著(zhù)運算點(diǎn)數的增加硬件實(shí)現難度成倍增長(cháng)。
