发明名称 |
SIGNAL PROCESSING METHOD FOR ULTRA-FAST ACQUISITION AND TRACKING OF SEVERELY ATTENUATED SPREAD SPECTRUM SIGNALS WITH DOPPLER FREQUENCY AND APPARATUS THEREOF |
摘要 |
A signal processing method for ultra-fast acquisition and tracking of severely attenuated spread spectrum signals with Doppler frequency and apparatus thereof are disclosed herein. The signal processing method may include a step of searching for at least one receiving signal from Global Navigation Satellite System (GNSS) positioning signals or Spread Spectrum signals in a signal processing device, wherein the step of searching for at least one received signal includes a sparse Doppler frequency search (SDFS) step performing signal search for respective sparse Doppler frequencies being spaced apart from one another by a first interval, and a synthesized Doppler frequency testing (SDFT) step performing signal search for respective synthesized Doppler frequencies being spaced apart from one another by a second interval between the sparse Doppler frequencies, the second interval being shorter than the first interval. |
申请公布号 |
US2015204981(A1) |
申请公布日期 |
2015.07.23 |
申请号 |
US201514599257 |
申请日期 |
2015.01.16 |
申请人 |
Korea Advanced Institute of Science and Technology |
发明人 |
KONG Seung-Hyun |
分类号 |
G01S19/24 |
主分类号 |
G01S19/24 |
代理机构 |
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代理人 |
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主权项 |
1. A signal processing method, comprising:
searching for at least one receiving signal from Global Navigation Satellite System (GNSS) positioning signals or Spread Spectrum signals in a signal processing device, wherein the step of searching for at least one received signal comprises: a sparse Doppler frequency search (SDFS) step performing signal search for respective sparse Doppler frequencies being spaced apart from one another by a first interval; and a synthesized Doppler frequency testing (SDFT) step performing signal search for respective synthesized Doppler frequencies being spaced apart from one another by a second interval between the sparse Doppler frequencies, the second interval being shorter than the first interval. |
地址 |
Daejeon KR |