Title:
METHOD FOR ESTIMATING ARRIVAL TIME BASED ON NOISE CANCELLATION
Document Type and Number:
WIPO Patent Application WO/2019/179084
Kind Code:
A1
Abstract:
Disclosed in the present invention is a method for estimating arrival time based on noise cancellation, comprising the following steps: S2. performing power sampling on a received ultra-wideband signal; S3. averaging a power sampling sequence; S4. carrying out calculation to obtain a noise mean vector; S5. using a sum-of-rank method to obtain a rank of a power mean column vector; S6. setting a decision threshold; S7. performing TOA estimation. The mean value operation for the power sampling sequence provided by the present invention can effectively eliminate the noise in a received signal and improve the precision of arrival time estimation. According to the present invention, a sum-of-rank method is employed for identifying ultra-wideband pulse signals and noise signals, which makes the identification process easier to operate, the results are more accurate and reliable, and effects of outliers can effectively be eliminated. The threshold setting method adopted by the present invention is simple in form, reliable and effective.
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Inventors:
FENG YIZHI (CN)
YANG PINGPING (CN)
ZHANG JUN (CN)
NING GENGXIN (CN)
JI FEI (CN)
YANG PINGPING (CN)
ZHANG JUN (CN)
NING GENGXIN (CN)
JI FEI (CN)
Application Number:
PCT/CN2018/110448
Publication Date:
September 26, 2019
Filing Date:
October 16, 2018
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
International Classes:
H04B1/10
Domestic Patent References:
| WO2015135630A1 | 2015-09-17 |
Foreign References:
| CN108521282A | 2018-09-11 | |||
| CN106131949A | 2016-11-16 | |||
| CN106017479A | 2016-10-12 | |||
| CN103297087A | 2013-09-11 |
Attorney, Agent or Firm:
GUANGZHOU HUAXUE INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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