A high-accuracy centroid estimation algorithm for star trackers based on micro-pace matching and filtering

2021 ◽  
Author(s):  
Wenke Han ◽  
Ting Sun
Keyword(s):  
Estimation Algorithm ◽  
High Accuracy ◽  
Centroid Estimation

Systematic error analysis and compensation for high accuracy star centroid estimation of star tracker

2010 ◽  
Vol 53 (11) ◽  
pp. 3145-3152 ◽  
Author(s):  
Hui Jia ◽  
JianKun Yang ◽  
XiuJian Li ◽  
JunCai Yang ◽  
MengFei Yang ◽  
...  
Keyword(s):  
Error Analysis ◽  
Systematic Error ◽  
High Accuracy ◽  
Star Tracker ◽  
Centroid Estimation

Maximum‐likelihood‐based Doppler centroid estimation algorithm for MC‐HRWS SAR system

2014 ◽  
Vol 50 (22) ◽  
pp. 1630-1631 ◽  
Author(s):  
Jianbing Li ◽  
Xiaoping Li ◽  
Mingfu Lin ◽  
Jungang Shi ◽  
Shuangxi Zhang
Keyword(s):  
Maximum Likelihood ◽  
Estimation Algorithm ◽  
Centroid Estimation

High-Accuracy Carrier Frequency Offset Estimation for MPSK Signals

2012 ◽  
Vol 195-196 ◽  
pp. 599-602
Author(s):  
Dong Ling Zhang ◽  
Lin Dong Ge
Keyword(s):  
Carrier Frequency ◽  
Carrier Frequency Offset ◽  
Gaussian White Noise ◽  
Estimation Algorithm ◽  
Frequency Offset ◽  
High Accuracy ◽  
Accurate Estimation ◽  
Performance Improvements ◽  
Nonlinear Processing ◽  
Energy Center

In this paper a high accuracy estimation algorithm of carrier frequency offset for MPSK signals in Gaussian white noise is proposed. Like the conventional practice, first the algorithm employs nonlinear processing to convert the MPSK signal to single sinusoidal signal, followed by windowed FFT, and then a method based on energy center correction is used to achieve accurate estimation. Simulation results have proved the feasibility,easiness of implementation, and the performance improvements in terms of accuracy and data length needed.

Channel Estimation Algorithm with Low Pilot Overhead and High Accuracy for IMDD-OFDM Transmission System

2016 ◽  
Vol 45 (10) ◽  
pp. 1006004
Author(s):  
毕美华 BI Mei-hua ◽  
李洁炜 LI Jie-wei ◽  
杨国伟 YANG Guo-wei ◽  
曾然 ZENG Ran ◽  
李齐良 LI Qi-liang ◽  
...  
Keyword(s):  
Channel Estimation ◽  
Estimation Algorithm ◽  
High Accuracy ◽  
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