Invention Application
- Patent Title: JOINT NON-COHERENT INTEGRAL VECTOR TRACKING METHOD BASED ON SPATIAL DOMAIN
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Application No.: US15511046Application Date: 2016-06-27
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Publication No.: US20170276795A1Publication Date: 2017-09-28
- Inventor: Xiyuan CHEN , Yang YANG , Xiying WANG , Bingbo CUI , Xinhua TANG , Xuefen ZHU
- Applicant: Southeast University
- Applicant Address: CN Nanjing
- Assignee: Southeast University
- Current Assignee: Southeast University
- Current Assignee Address: CN Nanjing
- Priority: CN201510686411.5 20151020
- International Application: PCT/CN2016/087280 WO 20160627
- Main IPC: G01S19/25
- IPC: G01S19/25 ; G01S19/24 ; G01S19/23 ; G01S5/02

Abstract:
The present invention discloses a joint non-coherent integral vector tracking method based on a spatial domain, which is used for further improving the performance of a vector tracking GPS (Global Positioning System) receiver. In a new vector tracking strategy design, a phase discriminator/a frequency discriminator in a traditional vector tracking loop is discarded, and baseband signals of visible satellites in each channel are taken as an observation value after performing non-coherent integration, and EKE (abbreviation of Extended Kalman Filter) is used to estimate directly and to solve the position, the velocity, a clock error, etc. of the GPS receiver. Because of the existence of non-coherent integral calculation, when GPS satellite signals are relatively weak, a carrier to noise ratio of an observation value may be effectively improved, and the tracking sensitivity is improved.
Public/Granted literature
- US10663599B2 Joint non-coherent integral vector tracking method based on spatial domain Public/Granted day:2020-05-26
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