Long-period spread spectrum code double-folding capture searching method
Title：
Long-period spread spectrum code double-folding capture searching method
Application Number：
 200710064680
Application Date：
 2007/03/23
Announcement Date：
 2007/08/22
Pub. Date：
Publication Number：
 101022282
Announcement Number：
Grant Date：
Granted Pub. Date：
ApplicationType：
 Invention
State/Country：
 11[China|beijing]
IPC：
 H04B 1/707H04L 27/26H04J 13/02
Applicant(s)：
 Tsinghua Univ.
Inventor(s)：
 Li Hong, Cui Xiaowei, Lu Mingquan, Feng Zhenming
Key Words：
 spread spectrum code, double-folding, capture, searching method
Abstract：
 A method for catch-searching spread spectrum code in long cycle includes carrying out fold on both received signal and local false code at receiving end, transforming folded signal to frequency domain and carrying out conjugate-multification on data two frequency domains, reverse- transforming multiplied data to time domain and carrying out calculation there to obtain maximum power value of each point, regulating local code phase to make researching if said maximum power value at largest point is less then threshold and simultaneously searching code phase of each point on generated local code phase by using available catch-searching method.
Claim：
Priority：
PCT：
LegalStatus：

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