Beidou satellite signal capturing method and device

The invention provides a Beidou satellite signal capturing method and device. The method comprises steps of segmenting Beidou intermediate frequency signal data into a first block, generating a pseudocode, and segmenting the pseudo code into a second block; respectively carrying out fast Fourier tra...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: WEN SHUSHENG, LIAO WEI, LIU GUOGUANG, CHEN KEMENG, LUO JUN, YAN SHAOXIA, SHEN JIANJUN, LI NING, PAN WEIFENG, WANG JIANGLIN, WEN JUNFU, LING JIALONG, XIONG HUI, YAO LIN, LU MINJUN, SUN PENG
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention provides a Beidou satellite signal capturing method and device. The method comprises steps of segmenting Beidou intermediate frequency signal data into a first block, generating a pseudocode, and segmenting the pseudo code into a second block; respectively carrying out fast Fourier transform of the first block and the second block, multiplying the result of the first block by a conjugate of the result of the second block, and carrying out reverse fast Fourier transform of a product result; filling the product result into a matrix, carrying out zero padding expansion to form a first matrix, carrying out Fourier transform of each column of the first matrix, taking an absolute value, and superposing the first matrixes; and capturing a Beidou satellite signal according to the element with the maximum numerical value of the first matrix. The method is advantaged in that the satellite signal capturing time is short, hardware resource requirements are few, precision is high, advantages of a Beidou syst