基本信息:
- 专利标题: Verfahren und System zur Frequenzspreizcodeerfassung
- 申请号:DE102018130696 申请日:2018-12-03
- 公开(公告)号:DE102018130696A1 公开(公告)日:2019-06-06
- 发明人: ATAIE VAHID
- 申请人: RAM PHOTONICS LLC
- 专利权人: RAM PHOTONICS LLC
- 当前专利权人: RAM PHOTONICS LLC
- 优先权: US201762593803 2017-12-01
- 主分类号: H04B1/7073
- IPC分类号: H04B1/7073
A code acquisition module for a direct sequence spread spectrum (DSSS) receiver includes: a Sparse Discrete Fourier transform (SDFT) module configured to perform an SDFT on a finite number of non-uniformly distributed frequencies comprising a preamble of a received DSSS frame to calculate Fourier coefficients for the finite number of non-uniformly distributed frequencies; a multiplier configured to multiply the Fourier coefficients for the finite number of non-uniformly distributed frequencies of the received DSSS frame by complex conjugate Fourier coefficients for the finite number of non-uniformly distributed frequencies to generate a cross-correlation of the received DSSS frame and the complex conjugate Fourier coefficients; and a filter module configured to input the cross-correlation and output a delay estimation for the received DSSS frame.
信息查询:
EspacenetIPC结构图谱:
H | 电学 |
--H04 | 电通信技术 |
----H04B | 传输 |
------H04B1/00 | 不包含在H04B3/00至H04B13/00单个组中的传输系统的部件;不以所使用的传输媒介为特征区分的传输系统的部件 |
--------H04B1/69 | .一般扩频技术 |
----------H04B1/707 | ..利用直接序列调制的 |
------------H04B1/7073 | ...同步方面 |