APPLICATION OF WAVELET PACKAGE DE-NOISING IN COMPASS TRIPLE-FREQUENCY OF TWO ORDER IONOSPHERIC CORRECTION
Huang Lingyong 1) ; Song Lijie 1) ; Wang Yan 1) ; Ren Yaqi 1) ;Liu Yikun 2) ; and Ning Deyang 3)
1)Institute of Surveying and Mapping, Information Engineering University, Zhengzhou 450052;2)The 61363 Troops of PLA, Xi’an 710054;3)Guangkong Survey and Design Institute, Guangzhou 510000
Abstract：For taking the problem in Compass two order ionospheric correction, the algorithm of wavelet package denoising is used to weaken the noises before ionospheric delay correction. Finally, the experiment is made by Compass emulational data and the results show that wavelet packet denoising method can decrease the observation errors and enhance the feasibility and validity of triplefrequency of two order correction greatly.
Huang Lingyong ,Song Lijie ,Wang Yan et al. APPLICATION OF WAVELET PACKAGE DE-NOISING IN COMPASS TRIPLE-FREQUENCY OF TWO ORDER IONOSPHERIC CORRECTION[J]. jgg, 2012, 32(1): 118-122.
